# ChatGenius AI vs MathDown

The clearest difference is price: ChatGenius AI at $3.99 against MathDown's $9.99. ChatGenius AI also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (12.0 vs 26.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

ChatGenius AI costs $3.99 and MathDown $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ChatGenius AI ships an update weekly, MathDown every 3 weeks. The most recent releases landed on October 4, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | ChatGenius AI | MathDown |
| --- | --- | --- |
| Price | **$3.99** | $9.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/chatgenius-ai-ask-anything/id6452879331/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Paid | Paid |
| Size | 68 MB | 13 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [Christopher Wilson](https://appshunter.io/developer/627783741) | [Milestone Made, LLC](https://appshunter.io/developer/1476538400) |

## What reviewers say

### ChatGenius AI

[App page](https://appshunter.io/ios/app/chatgenius-ai-ask-anything/id6452879331)

This AI-powered assistant can answer any question, write various content like stories and code, and help you practice languages. It offers personalized recommendations and a human-like chat experience.

**Highlights:** Ask anything and get instant answers, Write stories, poems, songs, and code, Practice and translate any language, Get personalized recommendations, Human-like conversational AI, Explore career advice

**In-app purchases:** none


### MathDown

[App page](https://appshunter.io/ios/app/mathdown-markdown-latex-docs/id6757225154)

Create markdown documents with live LaTeX math rendering. Define variables and functions, and enjoy automatic algebraic simplification for beautifully typeset equations. Perfect for math notes, homework, and tutorials.

**Highlights:** Live LaTeX math rendering, Define and reuse variables, Create and evaluate functions, Automatic algebraic simplification, Full LaTeX support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ChatGenius AI free?

ChatGenius AI costs $3.99, with no in-app purchases.

### Is MathDown free?

MathDown costs $9.99, with no in-app purchases.

### Do ChatGenius AI or MathDown have ads?

Neither ChatGenius AI nor MathDown shows ads.

### Which is updated more often, ChatGenius AI or MathDown?

ChatGenius AI ships an update weekly, and MathDown every 3 weeks. Most recently, ChatGenius AI was updated on October 4, 2026 and MathDown on September 26, 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.*