# VirtualBox, Apple iOS, CentOS vs macOS Sierra Comparison

| | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **Star Rating** | 4.5 out of 5 | 4.6 out of 5 | 4.4 out of 5 | 4.5 out of 5 | 
| **Total Reviews** | 292 | 1,564 | 426 | 483 | 
| **Largest Market Segment** | Small-Business (43.6% of reviews) | Small-Business (50.5% of reviews) | Mid-Market (38.4% of reviews) | Small-Business (54.3% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | No pricing available | No pricing available | 

---
## Top Pros & Cons

### VirtualBox

Pros:
- Virtualization Management (4 reviews)
- Ease of Use (3 reviews)

Cons:
- Performance Issues (3 reviews)
- Communication Clarity (1 reviews)

### Apple iOS

Pros:
- User-Friendly (47 reviews)
- Ease of Use (36 reviews)

Cons:
- Apple Limitations (31 reviews)
- Limited Customization (30 reviews)

### CentOS

Pros:
- Reliability (16 reviews)
- Stability (14 reviews)

Cons:
- Outdated Technology (7 reviews)
- Lack of Support (5 reviews)

### macOS Sierra

Pros:
- User-Friendly (26 reviews)
- Speed/Performance (21 reviews)

Cons:
- Compatibility Issues (12 reviews)
- Apple Limitations (9 reviews)

---
## Ratings Comparison
| Rating | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
  | **Meets Requirements** | 9.1 (255 reviews) | 9.2 (1153 reviews) | 9.1 (342 reviews) | 9.1 (320 reviews) | 
  | **Ease of Use** | 9.0 (260 reviews) | 9.4 (1168 reviews) | 8.5 (343 reviews) | 9.3 (325 reviews) | 
  | **Ease of Setup** | 9.0 (80 reviews) | 9.3 (400 reviews) | 8.6 (220 reviews) | 9.2 (142 reviews) | 
  | **Ease of Admin** | 8.4 (69 reviews) | 8.7 (177 reviews) | 8.5 (204 reviews) | 8.8 (72 reviews) | 
  | **Quality of Support** | 7.9 (188 reviews) | 9.0 (1099 reviews) | 8.1 (286 reviews) | 8.9 (292 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.3 (52 reviews) | 9.0 (171 reviews) | 8.7 (161 reviews) | 8.8 (70 reviews) | 
  | **Product Direction (% positive)** | 8.7 (251 reviews) | 9.0 (1060 reviews) | 8.3 (321 reviews) | 8.9 (298 reviews) | 

---
## Pricing

### VirtualBox

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### Apple iOS

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### CentOS

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### macOS Sierra

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Virtual Desktop Infrastructure (VDI)

| Product | Score | Reviews |
|---|---|---|
| **VirtualBox** | 8.3/10 | 42 |
| **Apple iOS** | N/A | N/A |
| **CentOS** | N/A | N/A |
| **macOS Sierra** | N/A | N/A |

#### Functionality

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **Desktop Virtualization** | 9.1 (39 reviews) | Not enough data | Not enough data | Not enough data | 
| **Application Virtualization** | 8.3 (29 reviews) | Not enough data | Not enough data | Not enough data | 

#### Desktop Management

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **Desktop Provisioning** | 9.1 (33 reviews) | Not enough data | Not enough data | Not enough data | 
| **Image Management** | 8.8 (32 reviews) | Not enough data | Not enough data | Not enough data | 
| **Load Balancing** | 7.3 (24 reviews) | Not enough data | Not enough data | Not enough data | 

#### Support

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **Multi-Device Portability** | 9.0 (27 reviews) | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **Two-Factor Authentication** | 7.4 (17 reviews) | Not enough data | Not enough data | Not enough data | 
| **Single Sign-On (SSO)** | 7.5 (19 reviews) | Not enough data | Not enough data | Not enough data | 
| **Encryption** | 7.8 (27 reviews) | Not enough data | Not enough data | Not enough data | 
| **Access Controls and Permissions** | 8.7 (27 reviews) | Not enough data | Not enough data | Not enough data | 

### Server Virtualization

| Product | Score | Reviews |
|---|---|---|
| **VirtualBox** | 8.2/10 | 15 |
| **Apple iOS** | N/A | N/A |
| **CentOS** | N/A | N/A |
| **macOS Sierra** | N/A | N/A |

#### Performance

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **Scalability** | 8.2 (13 reviews) | Not enough data | Not enough data | Not enough data | 
| **Portability** | 8.5 (13 reviews) | Not enough data | Not enough data | Not enough data | 
| **Data Recovery** | 7.1 (11 reviews) | Not enough data | Not enough data | Not enough data | 

#### Functionality

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **OS Integration** | 8.9 (14 reviews) | Not enough data | Not enough data | Not enough data | 
| **Resource Saving** | 8.2 (13 reviews) | Not enough data | Not enough data | Not enough data | 
| **Performance Management** | 7.6 (14 reviews) | Not enough data | Not enough data | Not enough data | 
| **Security** | 8.1 (14 reviews) | Not enough data | Not enough data | Not enough data | 

#### Agentic AI - Server Virtualization

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **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 | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | Not enough data | Not enough data | 

### Operating System

| Product | Score | Reviews |
|---|---|---|
| **VirtualBox** | N/A | N/A |
| **Apple iOS** | 9.2/10 | 187 |
| **CentOS** | 8.8/10 | 26 |
| **macOS Sierra** | 9.2/10 | 65 |

#### Memory Management - Operating System

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **RAM management** | Not enough data | 9.2 (121 reviews) | 9.2 (19 reviews) | 9.4 (49 reviews) | 

#### Device Management - Operating System

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **I/O management** | Not enough data | 9.3 (126 reviews) | 9.0 (19 reviews) | 9.3 (49 reviews) | 

#### Backup and Recovery - Operating System

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **Data backup** | Not enough data | 9.3 (144 reviews) | 8.2 (14 reviews) | 9.3 (47 reviews) | 

#### Error Detection - Operating System

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **System operations monitoring** | Not enough data | 9.0 (115 reviews) | 8.8 (20 reviews) | 8.9 (46 reviews) | 

### AWS Marketplace

| Product | Score | Reviews |
|---|---|---|
| **VirtualBox** | N/A | N/A |
| **Apple iOS** | N/A | N/A |
| **CentOS** | N/A | N/A |
| **macOS Sierra** | N/A | N/A |

#### Agentic AI - AWS Marketplace

| Feature | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **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 | 

---
## Categories

**Unique to VirtualBox (2):** [Server Virtualization Software](https://www.g2.com/categories/server-virtualization), [Virtual Desktop Infrastructure (VDI) Software](https://www.g2.com/categories/virtual-desktop-infrastructure-vdi)

**Unique to Apple iOS (1):** [Operating Systems](https://www.g2.com/categories/operating-system)

**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 macOS Sierra (1):** [Operating Systems](https://www.g2.com/categories/operating-system)


---
## Reviewer Demographics

### By Company Size

| Segment | VirtualBox | Apple iOS | CentOS | macOS Sierra | 
|---|---|---|---|---|
| **Small-Business** | 43.6% | 50.5% | 31.7% | 54.3% | 
| **Mid-Market** | 34.6% | 27.4% | 38.4% | 27.1% | 
| **Enterprise** | 21.8% | 22.1% | 30.0% | 18.6% | 

### By Industry

#### VirtualBox

- **Information Technology and Services:** 23.5%
- **Computer Software:** 22.1%
- **Computer & Network Security:** 7.3%
- **Telecommunications:** 4.8%
- **Internet:** 4.5%
- **Education Management:** 3.8%
- **Higher Education:** 2.1%
- **Computer Networking:** 2.1%
- **Program Development:** 1.7%
- **Food & Beverages:** 1.4%
- **Other:** 26.6%

#### 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%

#### 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%

#### macOS Sierra

- **Computer Software:** 18.7%
- **Information Technology and Services:** 17.8%
- **Marketing and Advertising:** 4.5%
- **Higher Education:** 4.5%
- **Financial Services:** 3.3%
- **Computer & Network Security:** 2.8%
- **Education Management:** 2.6%
- **Hospital & Health Care:** 2.4%
- **Media Production:** 1.7%
- **Accounting:** 1.7%
- **Other:** 40.0%

---
## Alternatives

### Alternatives to VirtualBox

- [Citrix DaaS](https://www.g2.com/products/citrix-citrix-daas/reviews) — 4.1/5 stars (546 reviews)
- [VMware vSphere](https://www.g2.com/products/vmware-vsphere/reviews) — 4.5/5 stars (761 reviews)
- [VMware Workstation Pro](https://www.g2.com/products/vmware-workstation-pro/reviews) — 4.5/5 stars (138 reviews)
- [VMware Fusion](https://www.g2.com/products/vmware-fusion/reviews) — 4.4/5 stars (126 reviews)
- [Amazon WorkSpaces](https://www.g2.com/products/amazon-workspaces/reviews) — 4.1/5 stars (108 reviews)
- [Proxmox VE](https://www.g2.com/products/proxmox-ve/reviews) — 4.6/5 stars (36 reviews)
- [Vagrant](https://www.g2.com/products/vagrant/reviews) — 4.6/5 stars (32 reviews)
- [Azure Virtual Machines](https://www.g2.com/products/azure-virtual-machines/reviews) — 4.4/5 stars (393 reviews)
- [V2 Cloud](https://www.g2.com/products/v2-cloud/reviews) — 4.7/5 stars (247 reviews)
- [Google Compute Engine](https://www.g2.com/products/google-compute-engine/reviews) — 4.5/5 stars (952 reviews)

### Alternatives to Apple iOS

- [Ubuntu](https://www.g2.com/products/ubuntu/reviews) — 4.5/5 stars (2389 reviews)
- [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 (576 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 (4281 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)

### Alternatives to CentOS

- [Ubuntu](https://www.g2.com/products/ubuntu/reviews) — 4.5/5 stars (2389 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)
- [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 (220 reviews)
- [Lubuntu](https://www.g2.com/products/lubuntu/reviews) — 4.4/5 stars (82 reviews)

### Alternatives to macOS Sierra

- [Ubuntu](https://www.g2.com/products/ubuntu/reviews) — 4.5/5 stars (2389 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)
- [Oracle Solaris](https://www.g2.com/products/oracle-solaris/reviews) — 4.2/5 stars (96 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)
- [Android](https://www.g2.com/products/android/reviews) — 4.6/5 stars (1272 reviews)
- [Windows 8](https://www.g2.com/products/windows-8/reviews) — 3.7/5 stars (576 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 (4281 reviews)

---
## Top Discussions

### VirtualBox

- Title: [How do I create a virtual machine in VirtualBox?](https://www.g2.com/discussions/how-do-i-create-a-virtual-machine-in-virtualbox) — 2 comments
  > **Top comment:** "Install Virtual Box on virtual box site.
after installation click on #New option
then get a name what types of os you want to install like Centos
then..."
- Title: [Is VirtualBox free?](https://www.g2.com/discussions/is-virtualbox-free) — 2 comments
  > **Top comment:** "Yes it is"
- Title: [How easy is it to install VirtualBox and what is it used for?](https://www.g2.com/discussions/10403-que-ta-facil-es-instalar-virtual-box-y-para-que-nos-sirve) — 2 comments, 1 upvote
  > **Top comment:** "It is relatively easy to install, you just need to run its installer and follow the quick installation steps. It helps us to simulate different operating..."
- Title: [What is VirtualBox software virtualization?](https://www.g2.com/discussions/what-is-virtualbox-software-virtualization) — 1 comment
  > **Top comment:** "You can run an OS virtually inside the software (virtualbox) without affecting the local OS.
The services of the virtualized OS could be limited but you can..."
- Title: [How does virtual box work?](https://www.g2.com/discussions/how-does-virtual-box-work) — 1 comment
  > **Top comment:** "It uses the machine resources to allocate and run another machine. It's like having another pc, that shares your resources with the main one."

### 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"

### 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. 

..."

### macOS Sierra

- Title: [Is the beta version of MacOS Catalina safe?](https://www.g2.com/discussions/16117-is-the-beta-version-of-macos-catalina-safe) — 4 comments, 1 upvote
  > **Top comment:** "Well, not that much if you are using old school applications that may not have been updated. Since Catalina is completely dropping 32 bits application..."
- Title: [What are the new features in Mac OS High Sierra?](https://www.g2.com/discussions/what-are-the-new-features-in-mac-os-high-sierra) — 1 comment
  > **Top comment:** "When I am listening to music, Safari automatically blocks audio and video in Sierra, unless I authorize it on a specific page. It will not stop the music and..."
- Title: [Is Mac OS Sierra any good?](https://www.g2.com/discussions/is-mac-os-sierra-any-good) — 1 comment
  > **Top comment:** "Yes"
- Title: [What does macOS Sierra do?](https://www.g2.com/discussions/what-does-macos-sierra-do) — 1 comment
  > **Top comment:** "It provides us following features,
1. Siri integration
2. Auto unlock 
3. Universal clipboard"
- Title: [What are you guys using Mac primarily for?](https://www.g2.com/discussions/50710-what-are-you-guys-using-mac-primarily-for) — 1 comment, 1 upvote
  > **Top comment:** "Work"

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/virtualbox-vs-apple-ios-vs-centos-vs-apple-macos-sierra)