# Top 10 NLTK Alternatives & Competitors **Average Rating:** 4.4/5 **Total Number of Reviews:** 48 Explore the best alternatives to NLTK for users who need new software features or want to try different solutions. Other important factors to consider when researching alternatives to NLTK include sentiment analysis and features. The best overall NLTK alternative is openNLP. Other similar apps like NLTK are Stanford CoreNLP, Amazon Comprehend, Google Cloud Natural Language API, and Google Cloud Translation API. NLTK alternatives can be found in [Natural Language Understanding (NLU) Software](https://www.g2.com/categories/natural-language-understanding-nlu) but may also be in [Machine Translation Software](https://www.g2.com/categories/machine-translation) or [Voice Recognition Software](https://www.g2.com/categories/voice-recognition). ## Best Paid & Free Alternatives to NLTK - [openNLP](https://www.g2.com/products/opennlp/reviews) - [Stanford CoreNLP](https://www.g2.com/products/stanford-corenlp/reviews) - [Amazon Comprehend](https://www.g2.com/products/amazon-comprehend/reviews) - [Google Cloud Natural Language API](https://www.g2.com/products/google-cloud-natural-language-api/reviews) - [Google Cloud Translation API](https://www.g2.com/products/google-cloud-translation-api/reviews) - [Deepgram](https://www.g2.com/products/deepgram/reviews) - [Claude](https://www.g2.com/products/claude-2025-12-11/reviews) - [InMoment Experience Improvement (XI) Platform](https://www.g2.com/products/inmoment-experience-improvement-xi-platform/reviews) - [Level AI](https://www.g2.com/products/level-ai/reviews) - [GlobalLink](https://www.g2.com/products/globallink/reviews) ## Top 10 Alternatives to NLTK Recently Reviewed By G2 Community Browse options below. Based on reviewer data, you can see how NLTK stacks up to the competition, check reviews from current & previous users in industries like Information Technology and Services, Education Management, and Internet, and find the best product for your business. ### 1. [openNLP](https://www.g2.com/products/opennlp/reviews) By The Apache Software Foundation **Average Rating:** 4.0/5 **Total Reviews:** 11 Apache OpenNLP library is a machine learning based toolkit for the processing of natural language text that supports the common NLP tasks, such as tokenization, sentence segmentation, part-of-speech tagging, named entity extraction, chunking, parsing, and coreference resolution these tasks are usually required to build more advanced text processing services and includes maximum entropy and perceptron based machine learning. Reviewers say compared to NLTK, openNLP is: - More expensive - Better at meeting requirements Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs openNLP](https://www.g2.com/compare/nltk-vs-opennlp) **Compare openNLP with other alternatives:** - [openNLP vs Stanford CoreNLP](https://www.g2.com/compare/stanford-corenlp-vs-opennlp) - [openNLP vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-opennlp) - [openNLP vs Google Cloud Natural Language API](https://www.g2.com/compare/google-cloud-natural-language-api-vs-opennlp) - [openNLP vs Google Cloud Translation API](https://www.g2.com/compare/google-cloud-translation-api-vs-opennlp) - [openNLP vs Deepgram](https://www.g2.com/compare/deepgram-vs-opennlp) - [openNLP vs Claude](https://www.g2.com/compare/claude-2025-12-11-vs-opennlp) - [openNLP vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/inmoment-experience-improvement-xi-platform-vs-opennlp) - [openNLP vs Level AI](https://www.g2.com/compare/level-ai-vs-opennlp) - [openNLP vs GlobalLink](https://www.g2.com/compare/globallink-vs-opennlp) ### 2. [Stanford CoreNLP](https://www.g2.com/products/stanford-corenlp/reviews) By Stanford NLP Group **Average Rating:** 4.3/5 **Total Reviews:** 10 Stanford CoreNLP provides a set of natural language analysis tools that can give the base forms of words, their parts of speech, whether they are names of companies, people, etc., normalize dates, times, and numeric quantities, and mark up the structure of sentences in terms of phrases and word dependencies, indicate which noun phrases refer to the same entities, indicate sentiment, extract open-class relations between mentions, etc. Reviewers say compared to NLTK, Stanford CoreNLP is: - Better at meeting requirements Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs Stanford CoreNLP](https://www.g2.com/compare/nltk-vs-stanford-corenlp) **Compare Stanford CoreNLP with other alternatives:** - [Stanford CoreNLP vs openNLP](https://www.g2.com/compare/stanford-corenlp-vs-opennlp) - [Stanford CoreNLP vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-stanford-corenlp) - [Stanford CoreNLP vs Google Cloud Natural Language API](https://www.g2.com/compare/google-cloud-natural-language-api-vs-stanford-corenlp) - [Stanford CoreNLP vs Google Cloud Translation API](https://www.g2.com/compare/google-cloud-translation-api-vs-stanford-corenlp) - [Stanford CoreNLP vs Deepgram](https://www.g2.com/compare/deepgram-vs-stanford-corenlp) - [Stanford CoreNLP vs Claude](https://www.g2.com/compare/claude-2025-12-11-vs-stanford-corenlp) - [Stanford CoreNLP vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/inmoment-experience-improvement-xi-platform-vs-stanford-corenlp) - [Stanford CoreNLP vs Level AI](https://www.g2.com/compare/level-ai-vs-stanford-corenlp) - [Stanford CoreNLP vs GlobalLink](https://www.g2.com/compare/globallink-vs-stanford-corenlp) ### 3. [Amazon Comprehend](https://www.g2.com/products/amazon-comprehend/reviews) By Amazon Web Services (AWS) **Average Rating:** 4.3/5 **Total Reviews:** 84 Amazon Comprehend is a natural language processing (NLP) service that uses machine learning to find insights and relationships in text. Amazon Comprehend identifies the language of the text; extracts key phrases, places, people, brands, or events; understands how positive or negative the text is; and automatically organizes a collection of text files by topic. Reviewers say compared to NLTK, Amazon Comprehend is: - More expensive - Better at meeting requirements - Better at support Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-nltk) **Compare Amazon Comprehend with other alternatives:** - [Amazon Comprehend vs openNLP](https://www.g2.com/compare/amazon-comprehend-vs-opennlp) - [Amazon Comprehend vs Stanford CoreNLP](https://www.g2.com/compare/amazon-comprehend-vs-stanford-corenlp) - [Amazon Comprehend vs Google Cloud Natural Language API](https://www.g2.com/compare/amazon-comprehend-vs-google-cloud-natural-language-api) - [Amazon Comprehend vs Google Cloud Translation API](https://www.g2.com/compare/amazon-comprehend-vs-google-cloud-translation-api) - [Amazon Comprehend vs Deepgram](https://www.g2.com/compare/amazon-comprehend-vs-deepgram) - [Amazon Comprehend vs Claude](https://www.g2.com/compare/amazon-comprehend-vs-claude-2025-12-11) - [Amazon Comprehend vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/amazon-comprehend-vs-inmoment-experience-improvement-xi-platform) - [Amazon Comprehend vs Level AI](https://www.g2.com/compare/amazon-comprehend-vs-level-ai) - [Amazon Comprehend vs GlobalLink](https://www.g2.com/compare/amazon-comprehend-vs-globallink) ### 4. [Google Cloud Natural Language API](https://www.g2.com/products/google-cloud-natural-language-api/reviews) By Google **Average Rating:** 4.3/5 **Total Reviews:** 113 Google Cloud’s Natural Language API helps developers unlock natural language understanding features including sentiment analysis, entity analysis, entity sentiment analysis, content classification, & syntax analysis. We incorporate the best of Google’s technology and research into our API, including the latest advancements in Large Language Models to help developers and practitioners get better insights, better ad targeting, & better recommendations for their users. Through our Natural Language API, developers can access a top-of-the-line content classification model with over 1000 categories that is both scalable across content types and languages and trained on the distilled knowledge of the world wide web. Reviewers say compared to NLTK, Google Cloud Natural Language API is: - More expensive - Better at meeting requirements - Better at support Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs Google Cloud Natural Language API](https://www.g2.com/compare/google-cloud-natural-language-api-vs-nltk) **Compare Google Cloud Natural Language API with other alternatives:** - [Google Cloud Natural Language API vs openNLP](https://www.g2.com/compare/google-cloud-natural-language-api-vs-opennlp) - [Google Cloud Natural Language API vs Stanford CoreNLP](https://www.g2.com/compare/google-cloud-natural-language-api-vs-stanford-corenlp) - [Google Cloud Natural Language API vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-google-cloud-natural-language-api) - [Google Cloud Natural Language API vs Google Cloud Translation API](https://www.g2.com/compare/google-cloud-natural-language-api-vs-google-cloud-translation-api) - [Google Cloud Natural Language API vs Deepgram](https://www.g2.com/compare/deepgram-vs-google-cloud-natural-language-api) - [Google Cloud Natural Language API vs Claude](https://www.g2.com/compare/claude-2025-12-11-vs-google-cloud-natural-language-api) - [Google Cloud Natural Language API vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/google-cloud-natural-language-api-vs-inmoment-experience-improvement-xi-platform) - [Google Cloud Natural Language API vs Level AI](https://www.g2.com/compare/google-cloud-natural-language-api-vs-level-ai) - [Google Cloud Natural Language API vs GlobalLink](https://www.g2.com/compare/globallink-vs-google-cloud-natural-language-api) ### 5. [Google Cloud Translation API](https://www.g2.com/products/google-cloud-translation-api/reviews) By Google **Average Rating:** 4.4/5 **Total Reviews:** 377 Google Cloud Translation API helps developers get translations for 100+ languages or build on top of Google's powerful pre-trained model with the words, phrases, and idioms that matter most to you and your business. Google Cloud's proven models and tools bring Google’s translation expertise and industry-leading accuracy right to your fingertips with no machine learning background needed to unlock the power of machine translation. Reviewers say compared to NLTK, Google Cloud Translation API is: - More expensive - Better at meeting requirements - Better at support Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs Google Cloud Translation API](https://www.g2.com/compare/google-cloud-translation-api-vs-nltk) **Compare Google Cloud Translation API with other alternatives:** - [Google Cloud Translation API vs openNLP](https://www.g2.com/compare/google-cloud-translation-api-vs-opennlp) - [Google Cloud Translation API vs Stanford CoreNLP](https://www.g2.com/compare/google-cloud-translation-api-vs-stanford-corenlp) - [Google Cloud Translation API vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-google-cloud-translation-api) - [Google Cloud Translation API vs Google Cloud Natural Language API](https://www.g2.com/compare/google-cloud-natural-language-api-vs-google-cloud-translation-api) - [Google Cloud Translation API vs Deepgram](https://www.g2.com/compare/deepgram-vs-google-cloud-translation-api) - [Google Cloud Translation API vs Claude](https://www.g2.com/compare/claude-2025-12-11-vs-google-cloud-translation-api) - [Google Cloud Translation API vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/google-cloud-translation-api-vs-inmoment-experience-improvement-xi-platform) - [Google Cloud Translation API vs Level AI](https://www.g2.com/compare/google-cloud-translation-api-vs-level-ai) - [Google Cloud Translation API vs GlobalLink](https://www.g2.com/compare/globallink-vs-google-cloud-translation-api) ### 6. [Deepgram](https://www.g2.com/products/deepgram/reviews) By Deepgram **Average Rating:** 4.6/5 **Total Reviews:** 474 Deepgram builds artificial intelligence to recognize speech, search for moments, and categorize audio and video. Reviewers say compared to NLTK, Deepgram is: - More expensive - Better at meeting requirements - Better at support Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs Deepgram](https://www.g2.com/compare/deepgram-vs-nltk) **Compare Deepgram with other alternatives:** - [Deepgram vs openNLP](https://www.g2.com/compare/deepgram-vs-opennlp) - [Deepgram vs Stanford CoreNLP](https://www.g2.com/compare/deepgram-vs-stanford-corenlp) - [Deepgram vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-deepgram) - [Deepgram vs Google Cloud Natural Language API](https://www.g2.com/compare/deepgram-vs-google-cloud-natural-language-api) - [Deepgram vs Google Cloud Translation API](https://www.g2.com/compare/deepgram-vs-google-cloud-translation-api) - [Deepgram vs Claude](https://www.g2.com/compare/claude-2025-12-11-vs-deepgram) - [Deepgram vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/deepgram-vs-inmoment-experience-improvement-xi-platform) - [Deepgram vs Level AI](https://www.g2.com/compare/deepgram-vs-level-ai) - [Deepgram vs GlobalLink](https://www.g2.com/compare/deepgram-vs-globallink) ### 7. [Claude](https://www.g2.com/products/claude-2025-12-11/reviews) By Anthropic **Average Rating:** 4.6/5 **Total Reviews:** 434 Claude is a state-of-the-art large language model (LLM) developed by Anthropic, designed to serve as a helpful, honest, and harmless AI assistant. With its advanced reasoning capabilities and conversational tone, Claude excels in tasks ranging from complex coding to in-depth financial analysis, making it a versatile tool for developers, enterprises, and financial professionals. Key Features and Functionality: - Advanced Coding Capabilities: Claude Opus 4 leads in coding performance, achieving top scores on benchmarks like SWE-bench and Terminal-bench. It supports sustained, long-running tasks, enabling continuous work for several hours, which is ideal for complex software development projects. - Financial Analysis Tools: Claude integrates seamlessly with financial data platforms such as Databricks and Snowflake, providing a unified interface for market analysis, research, and investment decision-making. It offers direct hyperlinks to source materials for instant verification, enhancing the efficiency of financial workflows. - Extended Context Windows: With an enhanced 500k context window available in Claude Sonnet 4, users can upload extensive documents, including hundreds of sales transcripts or large codebases, facilitating comprehensive analysis and collaboration. - Tool Use and Integration: Claude's extended thinking capabilities allow it to utilize tools like web search during reasoning processes, improving response accuracy. It also supports background tasks via GitHub Actions and integrates natively with development environments like VS Code and JetBrains for seamless pair programming. - Enterprise-Grade Security: The Claude Enterprise plan offers advanced security features, including Single Sign-On (SSO), Just-in-Time Provisioning (JIT), role-based permissions, audit logs, and custom data retention controls, ensuring data safety and compliance for organizations. Primary Value and User Solutions: Claude addresses the need for a reliable and intelligent AI assistant capable of handling complex tasks across various domains. For developers, it enhances productivity through advanced coding support and integration with development tools. Financial professionals benefit from its ability to unify and analyze diverse data sources, streamlining research and decision-making processes. Enterprises gain from its scalable solutions and robust security features, enabling efficient and secure deployment of AI capabilities within their operations. Overall, Claude empowers users to achieve higher efficiency, accuracy, and innovation in their respective fields. Reviewers say compared to NLTK, Claude is: - More expensive - Better at meeting requirements - More usable Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs Claude](https://www.g2.com/compare/claude-2025-12-11-vs-nltk) **Compare Claude with other alternatives:** - [Claude vs openNLP](https://www.g2.com/compare/claude-2025-12-11-vs-opennlp) - [Claude vs Stanford CoreNLP](https://www.g2.com/compare/claude-2025-12-11-vs-stanford-corenlp) - [Claude vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-claude-2025-12-11) - [Claude vs Google Cloud Natural Language API](https://www.g2.com/compare/claude-2025-12-11-vs-google-cloud-natural-language-api) - [Claude vs Google Cloud Translation API](https://www.g2.com/compare/claude-2025-12-11-vs-google-cloud-translation-api) - [Claude vs Deepgram](https://www.g2.com/compare/claude-2025-12-11-vs-deepgram) - [Claude vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/claude-2025-12-11-vs-inmoment-experience-improvement-xi-platform) - [Claude vs Level AI](https://www.g2.com/compare/claude-2025-12-11-vs-level-ai) - [Claude vs GlobalLink](https://www.g2.com/compare/claude-2025-12-11-vs-globallink) ### 8. [InMoment Experience Improvement (XI) Platform](https://www.g2.com/products/inmoment-experience-improvement-xi-platform/reviews) By PG Forsta **Average Rating:** 4.7/5 **Total Reviews:** 319 InMoment is a cloud-based customer experience (CX) optimization platform that gives you the ability to listen to and engage with your customers to improve business results through better experiences. Reviewers say compared to NLTK, InMoment Experience Improvement (XI) Platform is: - More expensive - Better at meeting requirements - Better at support Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/inmoment-experience-improvement-xi-platform-vs-nltk) **Compare InMoment Experience Improvement (XI) Platform with other alternatives:** - [InMoment Experience Improvement (XI) Platform vs openNLP](https://www.g2.com/compare/inmoment-experience-improvement-xi-platform-vs-opennlp) - [InMoment Experience Improvement (XI) Platform vs Stanford CoreNLP](https://www.g2.com/compare/inmoment-experience-improvement-xi-platform-vs-stanford-corenlp) - [InMoment Experience Improvement (XI) Platform vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-inmoment-experience-improvement-xi-platform) - [InMoment Experience Improvement (XI) Platform vs Google Cloud Natural Language API](https://www.g2.com/compare/google-cloud-natural-language-api-vs-inmoment-experience-improvement-xi-platform) - [InMoment Experience Improvement (XI) Platform vs Google Cloud Translation API](https://www.g2.com/compare/google-cloud-translation-api-vs-inmoment-experience-improvement-xi-platform) - [InMoment Experience Improvement (XI) Platform vs Deepgram](https://www.g2.com/compare/deepgram-vs-inmoment-experience-improvement-xi-platform) - [InMoment Experience Improvement (XI) Platform vs Claude](https://www.g2.com/compare/claude-2025-12-11-vs-inmoment-experience-improvement-xi-platform) - [InMoment Experience Improvement (XI) Platform vs Level AI](https://www.g2.com/compare/inmoment-experience-improvement-xi-platform-vs-level-ai) - [InMoment Experience Improvement (XI) Platform vs GlobalLink](https://www.g2.com/compare/globallink-vs-inmoment-experience-improvement-xi-platform) ### 9. [Level AI](https://www.g2.com/products/level-ai/reviews) By Level AI **Average Rating:** 4.6/5 **Total Reviews:** 219 Blending Human And Machine Intelligence To Transform Your Customer Experience. Reviewers say compared to NLTK, Level AI is: - More expensive - Better at meeting requirements - Better at support Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs Level AI](https://www.g2.com/compare/level-ai-vs-nltk) **Compare Level AI with other alternatives:** - [Level AI vs openNLP](https://www.g2.com/compare/level-ai-vs-opennlp) - [Level AI vs Stanford CoreNLP](https://www.g2.com/compare/level-ai-vs-stanford-corenlp) - [Level AI vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-level-ai) - [Level AI vs Google Cloud Natural Language API](https://www.g2.com/compare/google-cloud-natural-language-api-vs-level-ai) - [Level AI vs Google Cloud Translation API](https://www.g2.com/compare/google-cloud-translation-api-vs-level-ai) - [Level AI vs Deepgram](https://www.g2.com/compare/deepgram-vs-level-ai) - [Level AI vs Claude](https://www.g2.com/compare/claude-2025-12-11-vs-level-ai) - [Level AI vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/inmoment-experience-improvement-xi-platform-vs-level-ai) - [Level AI vs GlobalLink](https://www.g2.com/compare/globallink-vs-level-ai) ### 10. [GlobalLink](https://www.g2.com/products/globallink/reviews) By TransPerfect **Average Rating:** 4.5/5 **Total Reviews:** 186 GlobalLink enables organizations to streamline the localization process for all business needs. Reviewers say compared to NLTK, GlobalLink is: - More expensive - Better at support - Better at meeting requirements Categories in common with NLTK: [Natural Language Understanding (NLU)](https://www.g2.com/categories/natural-language-understanding-nlu) **Compare:** [NLTK vs GlobalLink](https://www.g2.com/compare/globallink-vs-nltk) **Compare GlobalLink with other alternatives:** - [GlobalLink vs openNLP](https://www.g2.com/compare/globallink-vs-opennlp) - [GlobalLink vs Stanford CoreNLP](https://www.g2.com/compare/globallink-vs-stanford-corenlp) - [GlobalLink vs Amazon Comprehend](https://www.g2.com/compare/amazon-comprehend-vs-globallink) - [GlobalLink vs Google Cloud Natural Language API](https://www.g2.com/compare/globallink-vs-google-cloud-natural-language-api) - [GlobalLink vs Google Cloud Translation API](https://www.g2.com/compare/globallink-vs-google-cloud-translation-api) - [GlobalLink vs Deepgram](https://www.g2.com/compare/deepgram-vs-globallink) - [GlobalLink vs Claude](https://www.g2.com/compare/claude-2025-12-11-vs-globallink) - [GlobalLink vs InMoment Experience Improvement (XI) Platform](https://www.g2.com/compare/globallink-vs-inmoment-experience-improvement-xi-platform) - [GlobalLink vs Level AI](https://www.g2.com/compare/globallink-vs-level-ai) ## Explore Articles - [What session stability do augmented reality collaboration tools provide when customers are in areas with spotty connectivity?](https://www.g2.com/discussions/what-session-stability-do-augmented-reality-collaboration-tools-provide-when-customers-are-in-areas-with-spotty-connectivity) - [Which is the best AI video generator for marketing campaigns?](https://www.g2.com/discussions/which-is-the-best-ai-video-generator-for-marketing-campaigns) - [What is the best tool for producing high-quality marketing videos?](https://www.g2.com/discussions/what-is-the-best-tool-for-producing-high-quality-marketing-videos) - [What freelance platforms have the best built-in tools for secure payments and project-based hiring so companies are protected if a contractor disappears midway through a project?](https://www.g2.com/discussions/what-freelance-platforms-have-the-best-built-in-tools-for-secure-payments-and-project-based-hiring-so-companies-are-protected-if-a-contractor-disappears-midway-through-a-project) - [Best ERP tools for digital services agencies](https://www.g2.com/discussions/best-erp-tools-for-digital-services-agencies) - [What is the top-rated social media advertising platform for enterprises?](https://www.g2.com/discussions/what-is-the-top-rated-social-media-advertising-platform-for-enterprises) ## Spotlight Categories - [Restaurant POS Systems](https://www.g2.com/categories/restaurant-pos) - [Account-Based Orchestration Platforms](https://www.g2.com/categories/account-based-orchestration-platforms) - [Video Conferencing Software](https://www.g2.com/categories/video-conferencing)