# Open Chat Inference vs Yemma 4

The clearest difference is iOS requirement: Open Chat Inference at 14.0 against Yemma 4's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Open Chat Inference | 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 | No | No |
| Update frequency | — | Daily |
| Monetization | — | Free |
| Size | 14 MB | 28 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Weiss Solutions LLC](https://appshunter.io/developer/1800998275) | [AVMIL LABS LLC](https://appshunter.io/developer/1884468489) |

## What reviewers say

### Open Chat Inference

[App page](https://appshunter.io/ios/app/open-chat-inference/id6758454746)

**Features:** macOS Compatibility

**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 Open Chat Inference free?

Open Chat Inference 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 Open Chat Inference or Yemma 4 have ads?

Neither Open Chat Inference nor Yemma 4 shows ads.

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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.*