# ChatGPT vs Grok AI

The clearest difference is ads: Grok AI at none against ChatGPT's shown. Grok AI also leads on update cadence (every 2 days vs weekly). ChatGPT's advantage is ratings volume (11M vs 1.4M) and chart position (#1 vs #4). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. ChatGPT sells 8 in-app purchases, starting at $8.00 per month and Grok AI sells 12 in-app purchases, starting at $10.00 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for ChatGPT against 4.9 for Grok AI. That said, the two scores are not equally well evidenced: ChatGPT has 11M ratings behind it against 1.4M, so its average is the more settled of the two. Written reviews split almost evenly too, at 70% and 71% positive.

ChatGPT ships an update weekly, Grok AI every 2 days. Both last shipped on September 24, 2026.

## The numbers

| Metric | ChatGPT | Grok AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (11M ratings)](https://appshunter.io/ios/app/chatgpt/id6448311069/reviews) | **[4.9 (1.4M ratings)](https://appshunter.io/ios/app/grok-ai/id6670324846/reviews)** |
| Number of ratings | **11M** | 1.4M |
| Positive reviews | 70.3% of reviews | **70.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#1** | #4 |
| Size | 227 MB | 184 MB |
| Requires iOS | 18.0 | **17** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [OpenAI OpCo, LLC](https://appshunter.io/developer/1684349733) | [X Corp.](https://appshunter.io/developer/296415947) |

## What reviewers say

### ChatGPT

[App page](https://appshunter.io/ios/app/chatgpt/id6448311069)

**Currently charting:** #1 Top Grossing · Productivity, #1 Top Grossing, #2 Top Free · Productivity, #2 Top Free (US App Store)

This app provides access to advanced AI capabilities, including text generation, image creation from descriptions, and voice conversations. It offers personalized advice, creative inspiration, and instant answers for various tasks, syncing history across devices.

**Highlights:** Image generation from text, Advanced voice conversations, Photo upload and transcription, Creative inspiration and ideas, Tailored advice and planning, Personalized learning assistance, Professional brainstorming

**Features:** Safari Extension, iMessage stickers, Vision Pro support, Fun Camera support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChatGPT Go | $8.00 | per month |
| ChatGPT Plus | $19.99 | per month |
| ChatGPT Pro 5x | $100.00 | per month |
| ChatGPT Pro 20x | $200.00 | per month |
| ChatGPT Plus | $200.00 | per year |
| 100 Credits | $4.00 | one-time |
| 500 Credits | $20.00 | one-time |
| 1000 Credits | $40.00 | one-time |

**What reviewers like**

- 🚀 Powerful and versatile AI assistant
- 👍 Intuitive and user-friendly interface
- 🤖 Impressive conversational abilities
- 💡 Convenient mobile access to ChatGPT
- 🧠 Vast knowledge base on diverse topics

**What reviewers complain about**

- 🐛 Occasional inaccuracies or inconsistencies in responses
- 🔖 Limited to pre-2021 data, lacking real-time updates
- 🔒 Concerns about privacy and data usage
- 🔍 Difficulty in navigating and managing conversation history

**Reported bugs**

- Unexpected app crashes or freezes
- Issues with login and account verification
- Inconsistent performance on different iOS devices

**Requested features**

- Ability to integrate with other apps and services
- Support for voice commands and audio responses
- Enhanced search and organization of conversation history
- Customization options for the AI's personality and behavior
- Improved accessibility features for users with disabilities


### Grok AI

[App page](https://appshunter.io/ios/app/grok-ai/id6670324846)

**Currently charting:** #4 Top Grossing · Productivity, #7 Top Free · Productivity, #17 Top Grossing, #38 Top Free (US App Store)

This AI assistant provides fast, truthful answers and can perform deep web research. It generates striking images and videos from text or voice prompts, and can analyze uploaded content. Engage in conversations with personalized AI companions and access real-time information from X.

**Highlights:** AI-powered Q&A and web research, AI image and video generation, Voice mode with live camera, Animated AI companions, Real-time X (Twitter) data access, Image editing capabilities

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SuperGrok Lite | $10.00 | per month |
| SuperGrok | $30.00 | per month |
| SuperGrok | $30.00 | per month |
| SuperGrok Plus | $100.00 | per month |
| SuperGrok Lite | $100.00 | per year |
| SuperGrok Heavy | $300.00 | per month |
| SuperGrok | $300.00 | per year |
| SuperGrok Plus | $1000.00 | per year |
| Extra Usage Credits 5 USD | $5.00 | one-time |
| Extra Usage Credits 20 USD | $20.00 | one-time |
| Extra Usage Credits 50 USD | $50.00 | one-time |
| Extra Usage Credits 100 USD | $100.00 | one-time |

**What reviewers like**

- 🚀 Fast and efficient
- 🔒 Unbiased and ethical
- 👍 Clean and intuitive UI
- 🤖 Powerful AI capabilities
- 🌐 Real-time data integration

**What reviewers complain about**

- 🐛 Occasional errors in responses
- 🔍 Needs more robust search/history features
- 🔌 Requires X account for full functionality

**Reported bugs**

- Login issues with X account integration
- Inaccurate chess move suggestions

**Requested features**

- Integrate chat history across X and Grok apps
- Add user profile customization for personalized image generation
- Expand iOS integration (widgets, Apple Watch support)
- Introduce custom model/prompt creation like ChatGPT


## Frequently asked questions

### Is ChatGPT free?

ChatGPT is free to download, with in-app purchases available.

### Is Grok AI free?

Grok AI is free to download, with in-app purchases available.

### Which has better reviews, ChatGPT or Grok AI?

Grok AI is rated higher. ChatGPT averages 4.8 out of 5 from 11M ratings, while Grok AI averages 4.9 from 1.4M ratings.

### Do ChatGPT or Grok AI have ads?

ChatGPT shows ads; Grok AI does not.

### Which is updated more often, ChatGPT or Grok AI?

ChatGPT ships an update weekly, and Grok AI every 2 days. Most recently, ChatGPT was updated on September 24, 2026 and Grok AI on September 24, 2026.

### Which is more popular, ChatGPT or Grok AI?

ChatGPT currently peaks at #1 in the App Store charts, and Grok AI at #4. Chart position reflects recent download velocity rather than total install base.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*