# AIChatOCR vs Yemma 4

The clearest difference is ads: Yemma 4 at none against AIChatOCR's shown. Yemma 4 also leads on update cadence (daily vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

AIChatOCR ships an update fortnightly, Yemma 4 daily. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AIChatOCR | Yemma 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/yemma-4/id6761586324/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Daily** |
| Monetization | — | Free |
| Size | 1.6 GB | 28 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Shusuke Hashimoto](https://appshunter.io/developer/1844193262) | [AVMIL LABS LLC](https://appshunter.io/developer/1884468489) |

## What reviewers say

### AIChatOCR

[App page](https://appshunter.io/ios/app/aichatocr/id6753650400)

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

**In-app purchases:** none


### Yemma 4

[App page](https://appshunter.io/ios/app/yemma-4/id6761586324)

This AI chat app runs entirely on your iPhone, processing prompts, images, and responses locally. Enjoy private conversations, brainstorm ideas, and summarize notes offline after an initial model download. It requires specific hardware for full functionality.

**Highlights:** 100% on-device AI chat, No sign-up or subscription required, Offline functionality after model download, Local conversation history, Adjustable response style, Image understanding

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

**In-app purchases:** none


## Frequently asked questions

### Is AIChatOCR free?

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

### Is Yemma 4 free?

Yemma 4 is free to download, with no in-app purchases.

### Do AIChatOCR or Yemma 4 have ads?

AIChatOCR shows ads; Yemma 4 does not.

### Which is updated more often, AIChatOCR or Yemma 4?

AIChatOCR ships an update fortnightly, and Yemma 4 daily. Most recently, AIChatOCR was updated on October 30, 2026 and Yemma 4 on October 31, 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.*