# Chatosai vs teemoon

The clearest difference is in-app purchases: teemoon at none against Chatosai's 2. Chatosai's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price, update cadence and ads there is nothing between them.

Both are free to download. Chatosai sells 2 in-app purchases, starting at $19.99 per month. teemoon asks for nothing beyond the download.

Chatosai ships an update every 5 days, teemoon weekly. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Chatosai | teemoon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/teemoon/id6762371161/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | — | Free |
| Size | 52 MB | 118 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hasna Dedoush](https://appshunter.io/developer/1883805133) | [ringzero ventures, LLC](https://appshunter.io/developer/1893961295) |

## What reviewers say

### Chatosai

[App page](https://appshunter.io/ios/app/chatosai/id6760315763)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Chatosai Monthly | $19.99 | per month |
| Premium Chatosai | $199.99 | per year |


### teemoon

[App page](https://appshunter.io/ios/app/teemoon/id6762371161)

This app enables private AI chat by running models directly on your device or connecting to your own computer. It supports various local and cloud-based AI models, ensuring your conversations remain on your phone with no account or analytics.

**Highlights:** Private AI chat, On-device model execution, Connect to own computer, Bring-your-own-key support, No account or subscription, Open source

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

**In-app purchases:** none


## Frequently asked questions

### Is Chatosai free?

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

### Is teemoon free?

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

### Do Chatosai or teemoon have ads?

Neither Chatosai nor teemoon shows ads.

### Which is updated more often, Chatosai or teemoon?

Chatosai ships an update every 5 days, and teemoon weekly. Most recently, Chatosai was updated on October 6, 2026 and teemoon on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*