# 1chat vs Algorithm Heroes

The clearest difference is in-app purchases: 1chat at none against Algorithm Heroes's 7. Algorithm Heroes's advantage is update cadence (every 4 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Algorithm Heroes sells 7 one-off in-app purchases. 1chat asks for nothing beyond the download.

1chat ships an update every 2 months, Algorithm Heroes every 4 days. The most recent releases landed on July 6, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 1chat | Algorithm Heroes |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 955 MB | 5 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [高均 欧](https://appshunter.io/developer/1698659995) | [Jiang Yu](https://appshunter.io/developer/1064347816) |

## What reviewers say

### 1chat

[App page](https://appshunter.io/ios/app/1chat-a-simple-local-ai/id6741682608)

This AI assistant operates entirely offline, prioritizing your privacy and security. It includes a built-in language model, requiring no internet connection or user registration to function. Manage multiple conversations and enjoy immediate use.

**Highlights:** Fully offline operation, No internet connection required, No login or registration, Built-in Qwen3 model, Multiple conversation management, Optimized for Apple chips

**Features:** macOS Compatibility

**In-app purchases:** none


### Algorithm Heroes

[App page](https://appshunter.io/ios/app/algorithm-heroes-battle/id6784192453)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Insertion Sort Chapter | $1.99 | one-time |
| Algorithm Pet Pack | $1.99 | one-time |
| Quick Sort Chapter | $1.99 | one-time |
| Selection Sort Chapter | $1.99 | one-time |
| Merge Sort Chapter | $1.99 | one-time |
| Code Theme Pack | $2.99 | one-time |
| Algorithm Heroes Pro | $7.99 | one-time |


## Frequently asked questions

### Is 1chat free?

1chat is free to download, with no in-app purchases.

### Is Algorithm Heroes free?

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

### Do 1chat or Algorithm Heroes have ads?

Neither 1chat nor Algorithm Heroes shows ads.

### Which is updated more often, 1chat or Algorithm Heroes?

1chat ships an update every 2 months, and Algorithm Heroes every 4 days. Most recently, 1chat was updated on July 6, 2026 and Algorithm Heroes on September 17, 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.*