# Chemistry AI vs Question AI

The clearest difference is update cadence: Chemistry AI at weekly against Question AI's every 3 weeks. Question AI's advantage is device support (3 vs 1) and iOS requirement (16.6 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Chemistry AI sells 4 in-app purchases, starting at $4.99 per 7 days and Question AI sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Chemistry AI ships an update weekly, Question AI every 3 weeks. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Chemistry AI | Question AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chemistry-ai-problem-solver/id6756354407/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 11 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Aitolkyn Abdulvakhapova](https://appshunter.io/developer/1775616199) | [Hassan Ahmad Babar](https://appshunter.io/developer/1895284920) |

## What reviewers say

### Chemistry AI

[App page](https://appshunter.io/ios/app/chemistry-ai-problem-solver/id6756354407)

This app provides instant, step-by-step solutions to chemistry problems by simply taking a photo. It offers clear explanations, generates study aids like flashcards and quizzes from notes, and includes essential chemistry tools.

**Highlights:** Instant photo-based problem solving, Step-by-step solution explanations, Auto-generated flashcards and quizzes, Interactive Periodic Table, Smart Chemistry Calculator, Quick Cheat Sheets

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chemistry Pro | $4.99 | per 7 days |
| Chemistry Pro | $6.99 | per 7 days |
| Chemistry Pro | $29.99 | per year |
| Chemistry Pro | $59.99 | per year |


### Question AI

[App page](https://appshunter.io/ios/app/question-ai-math-solver-app/id6763371387)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $3.99 | per 7 days |
| Month | $7.99 | per month |
| Year | $19.99 | per year |


## Frequently asked questions

### Is Chemistry AI free?

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

### Is Question AI free?

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

### Do Chemistry AI or Question AI have ads?

Neither Chemistry AI nor Question AI shows ads.

### Which is updated more often, Chemistry AI or Question AI?

Chemistry AI ships an update weekly, and Question AI every 3 weeks. Most recently, Chemistry AI was updated on October 8, 2026 and Question AI on October 4, 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.*