# Ubuntu, CentOS, ChatGPT vs Apple iOS Comparison | | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Star Rating** | 4.5 out of 5 | 4.4 out of 5 | 4.6 out of 5 | 4.6 out of 5 | | **Total Reviews** | 2,389 | 426 | 2,542 | 1,563 | | **Largest Market Segment** | Small-Business (47.3% of reviews) | Mid-Market (38.4% of reviews) | Small-Business (58.4% of reviews) | Small-Business (50.5% of reviews) | | **Entry Level Price** | No pricing available | No pricing available | No pricing available | No pricing available | --- ## Top Pros & Cons ### Ubuntu Pros: - Ease of Use (334 reviews) - Linux/Ubuntu OS (298 reviews) Cons: - Compatibility Issues (140 reviews) - Limited Software (102 reviews) ### CentOS Pros: - Reliability (16 reviews) - Stability (14 reviews) Cons: - Outdated Technology (7 reviews) - Lack of Support (5 reviews) ### ChatGPT Pros: - Ease of Use (796 reviews) - Useful (749 reviews) Cons: - AI Limitations (364 reviews) - Context Understanding (336 reviews) ### Apple iOS Pros: - User-Friendly (47 reviews) - Ease of Use (36 reviews) Cons: - Apple Limitations (31 reviews) - Limited Customization (30 reviews) --- ## Ratings Comparison | Rating | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Meets Requirements** | 9.0 (1880 reviews) | 9.1 (342 reviews) | 9.0 (2070 reviews) | 9.2 (1153 reviews) | | **Ease of Use** | 8.7 (1897 reviews) | 8.5 (343 reviews) | 9.5 (2152 reviews) | 9.4 (1168 reviews) | | **Ease of Setup** | 9.0 (910 reviews) | 8.6 (220 reviews) | 9.5 (1684 reviews) | 9.3 (400 reviews) | | **Ease of Admin** | 8.7 (649 reviews) | 8.5 (204 reviews) | 9.3 (201 reviews) | 8.7 (177 reviews) | | **Quality of Support** | 8.3 (1725 reviews) | 8.1 (286 reviews) | 8.4 (1736 reviews) | 9.0 (1099 reviews) | | **Has the product been a good partner in doing business?** | 8.7 (568 reviews) | 8.7 (161 reviews) | 9.2 (199 reviews) | 9.0 (171 reviews) | | **Product Direction (% positive)** | 9.1 (1778 reviews) | 8.3 (321 reviews) | 9.1 (1997 reviews) | 9.0 (1060 reviews) | --- ## Pricing ### Ubuntu #### Entry-Level Pricing No pricing available #### Free Trial Yes ### CentOS #### Entry-Level Pricing No pricing available #### Free Trial No information available ### ChatGPT #### Entry-Level Pricing No pricing available #### Free Trial No information available ### Apple iOS #### Entry-Level Pricing No pricing available #### Free Trial No information available --- ## Features Comparison By Category ### AI Chatbots | Product | Score | Reviews | |---|---|---| | **Ubuntu** | N/A | N/A | | **CentOS** | N/A | N/A | | **ChatGPT** | 8.6/10 | 1550 | | **Apple iOS** | N/A | N/A | #### Core Conversational Capabilities - AI Chatbots | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Controlled LLM Response Generation** | Not enough data | Not enough data | 9.1 (189 reviews) | Not enough data | | **Context Maintenance Within Sessions** | Not enough data | Not enough data | 8.4 (268 reviews) | Not enough data | | **Natural Language Understanding & Intent Inference** | Not enough data | Not enough data | 9.0 (254 reviews) | Not enough data | #### Data | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Reliability** | Not enough data | Not enough data | 8.2 (1176 reviews) | Not enough data | | **Data Security** | Not enough data | Not enough data | 8.0 (736 reviews) | Not enough data | #### Interaction | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Complex Query Handling** | Not enough data | Not enough data | 8.7 (1001 reviews) | Not enough data | | **Natural Conversation** | Not enough data | Not enough data | 8.9 (940 reviews) | Not enough data | | **Understanding** | Not enough data | Not enough data | 8.9 (935 reviews) | Not enough data | | **Context Management** | Not enough data | Not enough data | 8.5 (864 reviews) | Not enough data | | **Customizability** | Not enough data | Not enough data | 8.6 (809 reviews) | Not enough data | #### Task & Flow Management - AI Chatbots | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Scripted Dialogue & Decision Tree Support** | Not enough data | Not enough data | 8.8 (144 reviews) | Not enough data | | **Fallback Responses for Unknown Queries** | Not enough data | Not enough data | 8.3 (135 reviews) | Not enough data | #### Learning | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **User Interaction Learning** | Not enough data | Not enough data | 8.9 (734 reviews) | Not enough data | | **Error Learning** | Not enough data | Not enough data | 8.1 (718 reviews) | Not enough data | #### Deployment & Embedding - AI Chatbots | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **API Access for Business System Integration** | Not enough data | Not enough data | 8.8 (137 reviews) | Not enough data | | **Web Widget & SDK Embedding** | Not enough data | Not enough data | 8.4 (107 reviews) | Not enough data | #### Content Generation | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Creativity** | Not enough data | Not enough data | 8.9 (956 reviews) | Not enough data | | **Content Accuracy** | Not enough data | Not enough data | 7.7 (1065 reviews) | Not enough data | #### Admin & Configuration - AI Chatbots | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **No-Code Conversation Design** | Not enough data | Not enough data | 8.8 (127 reviews) | Not enough data | #### System | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **API Flexibility** | Not enough data | Not enough data | 8.5 (668 reviews) | Not enough data | | **Update Frequency and Utility** | Not enough data | Not enough data | 8.5 (711 reviews) | Not enough data | | **Cross-Platform Compatibility ** | Not enough data | Not enough data | 8.6 (682 reviews) | Not enough data | | **Software Integration** | Not enough data | Not enough data | 8.4 (738 reviews) | Not enough data | #### Agentic AI - AI Chatbots | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Autonomous Task Execution** | Not enough data | Not enough data | 8.3 (289 reviews) | Not enough data | | **Multi-step Planning** | Not enough data | Not enough data | 8.8 (347 reviews) | Not enough data | | **Cross-system Integration** | Not enough data | Not enough data | 8.4 (274 reviews) | Not enough data | | **Adaptive Learning** | Not enough data | Not enough data | 8.6 (284 reviews) | Not enough data | | **Natural Language Interaction** | Not enough data | Not enough data | 8.7 (376 reviews) | Not enough data | | **Proactive Assistance** | Not enough data | Not enough data | 8.5 (285 reviews) | Not enough data | | **Decision Making** | Not enough data | Not enough data | 8.6 (296 reviews) | Not enough data | #### Monitoring & Improvement - AI Chatbots | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Feedback-Driven Response Optimization** | Not enough data | Not enough data | 8.7 (127 reviews) | Not enough data | #### Reliability & Safety - AI Chatbots | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Guardrails & Content Controls** | Not enough data | Not enough data | 8.3 (125 reviews) | Not enough data | ### Cloud Management Platforms | Product | Score | Reviews | |---|---|---| | **Ubuntu** | 8.6/10 | 45 | | **CentOS** | N/A | N/A | | **ChatGPT** | N/A | N/A | | **Apple iOS** | N/A | N/A | #### Functionality | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Cloud Consolidation** | 8.9 (38 reviews) | Not enough data | Not enough data | Not enough data | | **Cloud Orchestration** | 8.8 (40 reviews) | Not enough data | Not enough data | Not enough data | | **Cloud Optimization** | 8.7 (39 reviews) | Not enough data | Not enough data | Not enough data | #### Management | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Cloud Cost Analytics** | 8.8 (39 reviews) | Not enough data | Not enough data | Not enough data | | **Cloud Security** | 8.9 (38 reviews) | Not enough data | Not enough data | Not enough data | | **Cloud Resource Management** | 8.7 (36 reviews) | Not enough data | Not enough data | Not enough data | | **Cloud Backup and Recovery** | 8.7 (39 reviews) | Not enough data | Not enough data | Not enough data | #### Agentic AI - Cloud Management Platforms | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Autonomous Task Execution** | 8.1 (24 reviews) | Not enough data | Not enough data | Not enough data | | **Cross-system Integration** | 8.2 (24 reviews) | Not enough data | Not enough data | Not enough data | | **Decision Making** | 8.3 (24 reviews) | Not enough data | Not enough data | Not enough data | ### Server Virtualization | Product | Score | Reviews | |---|---|---| | **Ubuntu** | 8.8/10 | 93 | | **CentOS** | N/A | N/A | | **ChatGPT** | N/A | N/A | | **Apple iOS** | N/A | N/A | #### Performance | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Scalability** | 9.4 (75 reviews) | Not enough data | Not enough data | Not enough data | | **Portability** | 9.4 (71 reviews) | Not enough data | Not enough data | Not enough data | | **Data Recovery** | 8.7 (70 reviews) | Not enough data | Not enough data | Not enough data | #### Functionality | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **OS Integration** | 9.3 (71 reviews) | Not enough data | Not enough data | Not enough data | | **Resource Saving** | 9.1 (73 reviews) | Not enough data | Not enough data | Not enough data | | **Performance Management** | 9.2 (69 reviews) | Not enough data | Not enough data | Not enough data | | **Security** | 9.5 (71 reviews) | Not enough data | Not enough data | Not enough data | #### Agentic AI - Server Virtualization | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Autonomous Task Execution** | 8.1 (42 reviews) | Not enough data | Not enough data | Not enough data | | **Multi-step Planning** | 8.4 (42 reviews) | Not enough data | Not enough data | Not enough data | | **Cross-system Integration** | 8.5 (43 reviews) | Not enough data | Not enough data | Not enough data | | **Adaptive Learning** | 8.3 (42 reviews) | Not enough data | Not enough data | Not enough data | | **Proactive Assistance** | 8.3 (41 reviews) | Not enough data | Not enough data | Not enough data | | **Decision Making** | 8.5 (42 reviews) | Not enough data | Not enough data | Not enough data | ### Container Engine | Product | Score | Reviews | |---|---|---| | **Ubuntu** | 9.0/10 | 59 | | **CentOS** | N/A | N/A | | **ChatGPT** | N/A | N/A | | **Apple iOS** | N/A | N/A | #### Application Support | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Deployment** | 9.2 (48 reviews) | Not enough data | Not enough data | Not enough data | | **Interface support** | 8.8 (40 reviews) | Not enough data | Not enough data | Not enough data | | **Processor support** | 9.3 (36 reviews) | Not enough data | Not enough data | Not enough data | | **Application Support** | 9.1 (46 reviews) | Not enough data | Not enough data | Not enough data | #### System Capability | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Self Healing High Availability** | 8.7 (33 reviews) | Not enough data | Not enough data | Not enough data | | **Orchestration** | 9.0 (40 reviews) | Not enough data | Not enough data | Not enough data | | **Scalability** | 9.2 (38 reviews) | Not enough data | Not enough data | Not enough data | #### Security | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Automatic Security Updates** | 9.1 (41 reviews) | Not enough data | Not enough data | Not enough data | | **Security updates** | 9.0 (41 reviews) | Not enough data | Not enough data | Not enough data | ### AI Code Generation | Product | Score | Reviews | |---|---|---| | **Ubuntu** | N/A | N/A | | **CentOS** | N/A | N/A | | **ChatGPT** | 8.8/10 | 432 | | **Apple iOS** | N/A | N/A | #### Functionality | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Accuracy** | Not enough data | Not enough data | 8.5 (360 reviews) | Not enough data | | **Input processing** | Not enough data | Not enough data | 8.9 (344 reviews) | Not enough data | | **Interface** | Not enough data | Not enough data | 9.3 (355 reviews) | Not enough data | | **Code quality** | Not enough data | Not enough data | 8.7 (345 reviews) | Not enough data | #### Support | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Community** | Not enough data | Not enough data | 8.4 (315 reviews) | Not enough data | | **Update schedule** | Not enough data | Not enough data | 8.6 (314 reviews) | Not enough data | | **Documentation** | Not enough data | Not enough data | 8.6 (323 reviews) | Not enough data | #### Agentic AI - AI Code Generation | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Cross-system Integration** | Not enough data | Not enough data | 8.5 (91 reviews) | Not enough data | | **Adaptive Learning** | Not enough data | Not enough data | 8.9 (95 reviews) | Not enough data | | **Natural Language Interaction** | Not enough data | Not enough data | 9.2 (100 reviews) | Not enough data | | **Proactive Assistance** | Not enough data | Not enough data | 8.7 (88 reviews) | Not enough data | | **Decision Making** | Not enough data | Not enough data | 8.8 (99 reviews) | Not enough data | ### Large Language Models (LLMs) | Product | Score | Reviews | |---|---|---| | **Ubuntu** | N/A | N/A | | **CentOS** | N/A | N/A | | **ChatGPT** | 8.2/10 | 323 | | **Apple iOS** | N/A | N/A | #### Performance | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Quality of Responses** | Not enough data | Not enough data | 8.7 (281 reviews) | Not enough data | | **Contextual Understanding** | Not enough data | Not enough data | 8.6 (260 reviews) | Not enough data | | **Efficiency in Multi-turn Conversations** | Not enough data | Not enough data | 8.1 (245 reviews) | Not enough data | | **Response Generation Speed** | Not enough data | Not enough data | 8.7 (264 reviews) | Not enough data | | **Domain Adaptability** | Not enough data | Not enough data | 8.5 (247 reviews) | Not enough data | #### Usability | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Integration Ease** | Not enough data | Not enough data | 8.7 (232 reviews) | Not enough data | | **API User-Friendliness** | Not enough data | Not enough data | 8.4 (219 reviews) | Not enough data | | **Customization Flexibility** | Not enough data | Not enough data | 8.3 (232 reviews) | Not enough data | | **Quality of Documentation** | Not enough data | Not enough data | 8.3 (234 reviews) | Not enough data | | **Support Effectiveness** | Not enough data | Not enough data | 8.0 (225 reviews) | Not enough data | #### Ethics & Compliance | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Bias Mitigation** | Not enough data | Not enough data | 7.7 (215 reviews) | Not enough data | | **Data Privacy Protection** | Not enough data | Not enough data | 7.4 (222 reviews) | Not enough data | | **Content Moderation** | Not enough data | Not enough data | 8.3 (226 reviews) | Not enough data | | **Transparency and Explainability** | Not enough data | Not enough data | 8.2 (222 reviews) | Not enough data | | **Ethical Guidelines Adherence** | Not enough data | Not enough data | 8.2 (218 reviews) | Not enough data | #### Generative AI - Large Language Models (LLMs) | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Text Generation** | Not enough data | Not enough data | 9.4 (98 reviews) | Not enough data | | **Text-to-Speech** | Not enough data | Not enough data | 8.7 (54 reviews) | Not enough data | | **Text-to-Image** | Not enough data | Not enough data | 8.2 (73 reviews) | Not enough data | | **Text-to-Music** | Not enough data | Not enough data | 6.9 (47 reviews) | Not enough data | | **Text-to-3D** | Not enough data | Not enough data | 6.8 (46 reviews) | Not enough data | | **Text-to-Video** | Not enough data | Not enough data | 6.5 (49 reviews) | Not enough data | | **Text Summarization** | Not enough data | Not enough data | 9.2 (75 reviews) | Not enough data | | **Image-to-Text** | Not enough data | Not enough data | 9.0 (62 reviews) | Not enough data | ### Operating System | Product | Score | Reviews | |---|---|---| | **Ubuntu** | 8.8/10 | 278 | | **CentOS** | 8.8/10 | 26 | | **ChatGPT** | N/A | N/A | | **Apple iOS** | 9.2/10 | 187 | #### Memory Management - Operating System | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **RAM management** | 9.1 (199 reviews) | 9.2 (19 reviews) | Not enough data | 9.2 (121 reviews) | #### Device Management - Operating System | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **I/O management** | 8.7 (218 reviews) | 9.0 (19 reviews) | Not enough data | 9.3 (126 reviews) | #### Backup and Recovery - Operating System | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Data backup** | 8.6 (173 reviews) | 8.2 (14 reviews) | Not enough data | 9.3 (144 reviews) | #### Error Detection - Operating System | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **System operations monitoring** | 8.8 (188 reviews) | 8.8 (20 reviews) | Not enough data | 9.0 (115 reviews) | ### AWS Marketplace | Product | Score | Reviews | |---|---|---| | **Ubuntu** | N/A | N/A | | **CentOS** | N/A | N/A | | **ChatGPT** | N/A | N/A | | **Apple iOS** | N/A | N/A | #### Agentic AI - AWS Marketplace | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | Not enough data | | **Multi-step Planning** | Not enough data | Not enough data | Not enough data | Not enough data | | **Cross-system Integration** | Not enough data | Not enough data | Not enough data | Not enough data | ### IoT Operating Systems | Product | Score | Reviews | |---|---|---| | **Ubuntu** | 8.9/10 | 41 | | **CentOS** | N/A | N/A | | **ChatGPT** | N/A | N/A | | **Apple iOS** | N/A | N/A | #### Security | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Access Controls** | 8.8 (34 reviews) | Not enough data | Not enough data | Not enough data | | **Network Security** | 9.3 (35 reviews) | Not enough data | Not enough data | Not enough data | | **Compliance** | 8.9 (32 reviews) | Not enough data | Not enough data | Not enough data | | **Cryptography** | 8.5 (31 reviews) | Not enough data | Not enough data | Not enough data | ### Security Compliance | Product | Score | Reviews | |---|---|---| | **Ubuntu** | 8.4/10 | 49 | | **CentOS** | N/A | N/A | | **ChatGPT** | N/A | N/A | | **Apple iOS** | N/A | N/A | #### Generative AI - Security Compliance | Feature | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Predictive Risk** | 8.3 (35 reviews) | Not enough data | Not enough data | Not enough data | | **Automated Documentation** | 8.4 (33 reviews) | Not enough data | Not enough data | Not enough data | --- ## Categories **Unique to Ubuntu (6):** [Security Compliance Software](https://www.g2.com/categories/security-compliance), [Cloud Management Platforms](https://www.g2.com/categories/cloud-management-platforms), [IoT Operating Systems](https://www.g2.com/categories/iot-operating-systems), [Operating Systems](https://www.g2.com/categories/operating-system), [Server Virtualization Software](https://www.g2.com/categories/server-virtualization), [Container Engine Software](https://www.g2.com/categories/container-engine) **Unique to CentOS (2):** [Operating Systems](https://www.g2.com/categories/operating-system), [AWS Marketplace Software](https://www.g2.com/categories/aws-marketplace) **Unique to ChatGPT (3):** [AI Code Generation Software](https://www.g2.com/categories/ai-code-generation), [AI Chatbots Software](https://www.g2.com/categories/ai-chatbots), [Large Language Models (LLMs) Software](https://www.g2.com/categories/large-language-models-llms) **Unique to Apple iOS (1):** [Operating Systems](https://www.g2.com/categories/operating-system) --- ## Reviewer Demographics ### By Company Size | Segment | Ubuntu | CentOS | ChatGPT | Apple iOS | |---|---|---|---|---| | **Small-Business** | 47.3% | 31.7% | 58.4% | 50.5% | | **Mid-Market** | 33.1% | 38.4% | 28.9% | 27.4% | | **Enterprise** | 19.6% | 30.0% | 12.7% | 22.1% | ### By Industry #### Ubuntu - **Information Technology and Services:** 26.3% - **Computer Software:** 25.1% - **Computer & Network Security:** 5.2% - **Higher Education:** 3.5% - **Internet:** 2.9% - **Telecommunications:** 2.5% - **Financial Services:** 2.1% - **Program Development:** 1.8% - **Education Management:** 1.8% - **Research:** 1.5% - **Other:** 27.3% #### CentOS - **Information Technology and Services:** 30.2% - **Computer Software:** 15.7% - **Computer & Network Security:** 5.7% - **Telecommunications:** 4.2% - **Internet:** 3.7% - **Higher Education:** 3.0% - **Financial Services:** 2.7% - **Research:** 1.7% - **Program Development:** 1.5% - **Education Management:** 1.2% - **Other:** 30.2% #### ChatGPT - **Information Technology and Services:** 14.2% - **Computer Software:** 13.5% - **Marketing and Advertising:** 8.5% - **Education Management:** 3.4% - **Consulting:** 3.3% - **Higher Education:** 3.3% - **Financial Services:** 3.2% - **Computer & Network Security:** 2.5% - **Staffing and Recruiting:** 2.0% - **Accounting:** 1.9% - **Other:** 44.3% #### Apple iOS - **Information Technology and Services:** 14.2% - **Computer Software:** 11.0% - **Higher Education:** 4.9% - **Marketing and Advertising:** 4.3% - **Hospital & Health Care:** 3.0% - **Education Management:** 2.7% - **Health, Wellness and Fitness:** 2.4% - **Accounting:** 2.2% - **Financial Services:** 2.1% - **Retail:** 2.0% - **Other:** 51.2% --- ## Alternatives ### Alternatives to Ubuntu - [Red Hat Enterprise Linux](https://www.g2.com/products/red-hat-enterprise-linux/reviews) — 4.6/5 stars (975 reviews) - [Windows 11](https://www.g2.com/products/windows-11/reviews) — 4.5/5 stars (4278 reviews) - [Android](https://www.g2.com/products/android/reviews) — 4.6/5 stars (1272 reviews) - [Windows 7](https://www.g2.com/products/windows-7/reviews) — 4.2/5 stars (894 reviews) - [Windows 8](https://www.g2.com/products/windows-8/reviews) — 3.7/5 stars (577 reviews) - [macOS Sierra](https://www.g2.com/products/apple-macos-sierra/reviews) — 4.5/5 stars (483 reviews) - [Oracle Linux](https://www.g2.com/products/oracle-linux/reviews) — 4.4/5 stars (346 reviews) - [Chrome OS](https://www.g2.com/products/chrome-os/reviews) — 4.5/5 stars (716 reviews) - [Apple OS X El Capitan](https://www.g2.com/products/apple-os-x-el-capitan/reviews) — 4.4/5 stars (262 reviews) - [Debian](https://www.g2.com/products/debian/reviews) — 4.6/5 stars (219 reviews) ### Alternatives to CentOS - [Red Hat Enterprise Linux](https://www.g2.com/products/red-hat-enterprise-linux/reviews) — 4.6/5 stars (975 reviews) - [Windows 7](https://www.g2.com/products/windows-7/reviews) — 4.2/5 stars (894 reviews) - [macOS Sierra](https://www.g2.com/products/apple-macos-sierra/reviews) — 4.5/5 stars (483 reviews) - [Oracle Linux](https://www.g2.com/products/oracle-linux/reviews) — 4.4/5 stars (346 reviews) - [Kali Linux](https://www.g2.com/products/kali-linux/reviews) — 4.5/5 stars (241 reviews) - [Android](https://www.g2.com/products/android/reviews) — 4.6/5 stars (1272 reviews) - [Fedora](https://www.g2.com/products/fedora/reviews) — 4.4/5 stars (211 reviews) - [Linux Mint](https://www.g2.com/products/linux-mint/reviews) — 4.5/5 stars (189 reviews) - [Debian](https://www.g2.com/products/debian/reviews) — 4.6/5 stars (219 reviews) - [Lubuntu](https://www.g2.com/products/lubuntu/reviews) — 4.4/5 stars (82 reviews) ### Alternatives to ChatGPT - [Gemini](https://www.g2.com/products/google-gemini/reviews) — 4.4/5 stars (469 reviews) - [TESS AI](https://www.g2.com/products/tess-ai/reviews) — 4.7/5 stars (492 reviews) - [GitHub Copilot](https://www.g2.com/products/github-copilot/reviews) — 4.5/5 stars (301 reviews) - [Perplexity](https://www.g2.com/products/perplexity/reviews) — 4.5/5 stars (296 reviews) - [Replit](https://www.g2.com/products/replit/reviews) — 4.5/5 stars (355 reviews) - [Simplified](https://www.g2.com/products/simplified/reviews) — 4.6/5 stars (5008 reviews) - [Claude](https://www.g2.com/products/claude-2025-12-11/reviews) — 4.6/5 stars (309 reviews) - [1min.AI](https://www.g2.com/products/1min-ai/reviews) — 4.5/5 stars (888 reviews) - [Tabnine](https://www.g2.com/products/tabnine/reviews) — 4.1/5 stars (48 reviews) - [Notion](https://www.g2.com/products/notion/reviews) — 4.6/5 stars (11886 reviews) ### Alternatives to Apple iOS - [Android](https://www.g2.com/products/android/reviews) — 4.6/5 stars (1272 reviews) - [Red Hat Enterprise Linux](https://www.g2.com/products/red-hat-enterprise-linux/reviews) — 4.6/5 stars (975 reviews) - [Windows 7](https://www.g2.com/products/windows-7/reviews) — 4.2/5 stars (894 reviews) - [Windows 8](https://www.g2.com/products/windows-8/reviews) — 3.7/5 stars (577 reviews) - [Oracle Linux](https://www.g2.com/products/oracle-linux/reviews) — 4.4/5 stars (346 reviews) - [Windows 11](https://www.g2.com/products/windows-11/reviews) — 4.5/5 stars (4278 reviews) - [Fedora](https://www.g2.com/products/fedora/reviews) — 4.4/5 stars (211 reviews) - [Chrome OS](https://www.g2.com/products/chrome-os/reviews) — 4.5/5 stars (716 reviews) - [Linux Mint](https://www.g2.com/products/linux-mint/reviews) — 4.5/5 stars (189 reviews) - [Parrot Security OS](https://www.g2.com/products/parrot-security-os/reviews) — 4.4/5 stars (60 reviews) --- ## Top Discussions ### Ubuntu - Title: [I'm having trouble installing applications on Ubuntu. What are the best practices for a beginner?](https://www.g2.com/discussions/i-m-having-trouble-installing-applications-on-ubuntu-what-are-the-best-practices-for-a-beginner) — 7 comments, 1 upvote > **Top comment:** "Please let me know the error, I can help you in installing application on Ubuntu." - Title: [Is Ubuntu really good OS comoared to other Linux distros?](https://www.g2.com/discussions/is-ubuntu-really-good-os-comoared-to-other-linux-distros) — 7 comments, 2 upvotes > **Top comment:** "Hi Avinash, The packaging system of Ubuntu is inherited from Debian and is very well structured and maintained, making it relatively seldom necessary to..." - Title: [What is Ubuntu used for?](https://www.g2.com/discussions/what-is-ubuntu-used-for) — 6 comments, 2 upvotes > **Top comment:** "operating system" - Title: [What is Ubuntu Desktop used for?](https://www.g2.com/discussions/what-is-ubuntu-desktop-used-for) — 6 comments, 2 upvotes > **Top comment:** "Thanks you " - Title: [What is special about Ubuntu?](https://www.g2.com/discussions/what-is-special-about-ubuntu) — 5 comments, 5 upvotes > **Top comment:** "is one of the stable linux." ### CentOS - Title: [how can I install and use CentOS](https://www.g2.com/discussions/how-can-i-install-and-use-centos) — 1 comment, 1 upvote > **Top comment:** "First download centos from the official repo. Later you can install by booting up your computer/laptop with centos iso image." - Title: [How to install package?](https://www.g2.com/discussions/how-to-install-package) — 1 comment, 1 upvote > **Top comment:** "For install package use command : yum install <package_name>" - Title: [Bolehkah ini digunakan untuk acara pembelajaran?](https://www.g2.com/discussions/can-this-be-used-for-learning-events) — 1 comment, 1 upvote > **Top comment:** "Yes. You can run Moodle, or other learning management system (LMS) products on CentOS Linux, or event management software. There is a rich set of open source..." - Title: [Where did you go to learn how to use CentOS?](https://www.g2.com/discussions/51381-where-did-you-go-to-learn-how-to-use-centos) — 1 comment, 1 upvote > **Top comment:** "At my first job organization. Some learning forums like stackexchange, tldp, the Linux Foundation etc..., " - Title: [How can I acheive client isolation ?](https://www.g2.com/discussions/how-can-i-acheive-client-isolation) — 1 comment, 1 upvote > **Top comment:** "When I was learning about client isolation I found this web article very helpful. I hope it will help you. ..." ### ChatGPT - Title: [🧠 Is AI Weakening Human Critical Thinking? Let’s Talk.](https://www.g2.com/discussions/is-ai-weakening-human-critical-thinking-let-s-talk) — 8 comments, 4 upvotes > **Top comment:** "Yes, as long as the user is not evaluating and sutdying the output, AI is weaking the critical thinking." - Title: [GPT-4.5 What is your opinion?](https://www.g2.com/discussions/gpt-4-5-what-is-your-opinion) — 6 comments, 2 upvotes > **Top comment:** "I love using ChatGPT. I has help me lots if times to solve problems. " - Title: [How do you keep ChatGPT neutral and useful for academic research and analysis?](https://www.g2.com/discussions/how-do-you-keep-chatgpt-neutral-and-useful-for-academic-research-and-analysis) — 1 comment, 1 upvote > **Top comment:** "To keep ChatGPT neutral and useful for academic research, I treat it as a supplementary tool rather than a primary source. I use it to brainstorm ideas,..." ### Apple iOS - Title: [What is the present version of iOS?](https://www.g2.com/discussions/what-is-the-present-version-of-ios) — 7 comments > **Top comment:** "ios 16.5" - Title: [What is Apple iOS used for?](https://www.g2.com/discussions/what-is-apple-ios-used-for) — 3 comments, 1 upvote > **Top comment:** "On Server and as Laptops, Desktop as an operating system" - Title: [What are the iOS 14 features?](https://www.g2.com/discussions/what-are-the-ios-14-features) — 3 comments, 1 upvote > **Top comment:** "iOS 14 was perhaps of Apple's greatest Io updates to date, presenting Home screen configuration changes, major new elements, refreshes for existing..." - Title: [What are the iOS 13 features?](https://www.g2.com/discussions/what-are-the-ios-13-features) — 2 comments > **Top comment:** "Dark mode (Most awaited), Private way to sign into apps, browse and edit photos and list goes on" - Title: [What do you mean by property in iOS?](https://www.g2.com/discussions/what-do-you-mean-by-property-in-ios) — 2 comments, 1 upvote > **Top comment:** "i dont mean by property in iOS" --- **Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/ubuntu-vs-centos-vs-chatgpt-vs-apple-ios)