# Chat Ace vs Histopia

The clearest difference is in-app purchases: Histopia at none against Chat Ace's 1. Histopia also leads on iOS requirement (12.4 vs 16.0). Chat Ace's advantage is update cadence (monthly vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Chat Ace sells 1 in-app purchase, starting at $6.99 per month. Histopia asks for nothing beyond the download.

Chat Ace ships an update monthly, Histopia every 6 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Chat Ace | Histopia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/chat-ace-ai-for-learners/id6446349118/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 54 MB |
| Requires iOS | 16.0 | **12.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 9+ |
| Developer | [ProductiveTap](https://appshunter.io/developer/430553438) | [Soysal Tan](https://appshunter.io/developer/1686126069) |

## What reviewers say

### Chat Ace

[App page](https://appshunter.io/ios/app/chat-ace-ai-for-learners/id6446349118)

This AI chatbot facilitates learning through interactive conversations and question generation. It offers quick content on various topics and allows users to explore any subject with suggested follow-up questions. Users can also save, tag, and search their chat history for easy organization and retrieval.

**Highlights:** Generate question ideas on any topic, Engage in follow-up conversations, Access quick content like fun facts, Run various AI tasks (summaries, stories), Search and organize chat history, Automatic iCloud backup and sync

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $6.99 | per month |


### Histopia

[App page](https://appshunter.io/ios/app/histopia-chat/id6449364875)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chat Ace free?

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

### Is Histopia free?

Histopia is free to download, with no in-app purchases.

### Do Chat Ace or Histopia have ads?

Both Chat Ace and Histopia show ads.

### Which is updated more often, Chat Ace or Histopia?

Chat Ace ships an update monthly, and Histopia every 6 months. Most recently, Chat Ace was updated on November 3, 2026 and Histopia on November 3, 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.*