# Chat AI vs Ninja

The clearest difference is review sentiment: Ninja at 92% against Chat AI's 58%. Ninja also leads on rating (4.9 vs 4.7) and update cadence (every 2 weeks vs monthly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Chat AI sells 10 in-app purchases, starting at $3.99 per 7 days and Ninja sells 10 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Ninja holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 15K and 11K respectively. Written reviews point the same way: 58% of Chat AI's written reviews are positive against 92% of Ninja's.

Chat AI ships an update monthly, Ninja every 2 weeks. The most recent releases landed on November 9, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Chat AI | Ninja |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15K ratings)](https://appshunter.io/ios/app/chat-ai-ask-chatbot-assistant/id1661016696/reviews) | **[4.9 (11K ratings)](https://appshunter.io/ios/app/ninja-ai-chat-for-students/id1673656331/reviews)** |
| Number of ratings | **15K** | 11K |
| Positive reviews | 57.9% of reviews | **92.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 83 MB | 52 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Niyaz Vakhpiev](https://appshunter.io/developer/1625102133) | [Joseph Semrai](https://appshunter.io/developer/1526112330) |

## What reviewers say

### Chat AI

[App page](https://appshunter.io/ios/app/chat-ai-ask-chatbot-assistant/id1661016696)

This app leverages advanced AI to provide a conversational experience, acting as a virtual assistant for daily tasks and a content creation tool. It can answer a wide range of questions and generate unique digital art based on user preferences.

**Highlights:** AI-powered chatbot, Virtual assistant for tasks, Content writing assistance, Question answering, AI art generation, Intuitive design

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro 2 | $3.99 | per 7 days |
| Weekly Pro 3 | $3.99 | per 7 days |
| Weekly Basic | $7.99 | per 7 days |
| Weekly Pro | $7.99 | per 7 days |
| Weekly Pro | $7.99 | per 7 days |
| Monthly Pro | $14.99 | per month |
| 6 Month Pro | $39.99 | per 6 months |
| Yearly Pro | $49.99 | per year |
| Yearly Pro | $49.99 | per year |
| Yearly Basic | $49.99 | per year |

**What reviewers like**

- 🚀 Fast, comprehensive and accurate
- 👍 Amazing app
- 👍 Extremely happy with this app
- 👍 Awesome app
- 👍 Brilliant

**What reviewers complain about**

- 🐛 Don't waste your time or money
- 🐛 Update difficulty
- 🐛 Issue
- 🐛 Sudden issues
- 🐛 Answer to Questions can be underwhelming

**Reported bugs**

- Barely works half the time
- 4.0 AI can't build off or draw from previous responses
- Cuts off mid-sentence
- Deletes all message and chat history when uninstalled
- Incorrect date and age information

**Requested features**

- Add image option
- Add longer free trial
- Add ability to input file for AI edits
- Add ability to continue conversation and build on previous responses
- Add ability to set AI to act from particular perspective or expertise


### Ninja

[App page](https://appshunter.io/ios/app/ninja-ai-chat-for-students/id1673656331)

This AI-powered assistant helps students and professionals by generating essays with real-time sources, transforming handwritten notes into study guides, and solving homework problems from photos. It also offers integrated document and presentation tools, with a choice of advanced AI models.

**Highlights:** Advanced essay writing with real-time sources, Convert handwritten notes to study guides, Image-based homework explanation and problem-solving, Integrated document and presentation creation, Choice of AI models (GPT-4, Claude, etc.)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $2.99 | per 7 days |
| Basic | $4.99 | per month |
| Pro | $9.99 | per month |
| Premium Monthly | $9.99 | per month |
| Expert | $19.99 | per month |
| 100 Tokens | $4.99 | one-time |
| Buy 250 Tokens | $7.99 | one-time |
| Basic | $9.99 | one-time |
| 1500 Tokens | $14.99 | one-time |
| Lifetime Plan | $69.99 | one-time |

**What reviewers like**

- 🚀 Efficient and productive
- 👍 User-friendly interface
- 💡 Customizable features
- 🚀 Quick task completion
- 🚀 Helpful AI-powered writing assistance

**What reviewers complain about**

- 🐛 Occasional technical issues
- 🔋 Potential for data loss

**Reported bugs**

- Login screen freezes
- Compatibility issues with older devices

**Requested features**

- Dark mode option
- Expanded collaboration tools
- Enhanced security and backup features


## Frequently asked questions

### Is Chat AI free?

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

### Is Ninja free?

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

### Which has better reviews, Chat AI or Ninja?

Ninja is rated higher. Chat AI averages 4.7 out of 5 from 15K ratings, while Ninja averages 4.9 from 11K ratings.

### Do Chat AI or Ninja have ads?

Neither Chat AI nor Ninja shows ads.

### Which is updated more often, Chat AI or Ninja?

Chat AI ships an update monthly, and Ninja every 2 weeks. Most recently, Chat AI was updated on November 9, 2026 and Ninja on November 8, 2026.

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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.*