# OMessage vs Cactus Chat

The clearest difference is update cadence: OMessage at every 5 days against Cactus Chat's monthly. 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.

OMessage ships an update every 5 days, Cactus Chat monthly. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OMessage | Cactus Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (6 ratings)](https://appshunter.io/ios/app/cactus-chat/id6744444212/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | — | Free |
| Size | 12 MB | 43 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [寰宇 骆](https://appshunter.io/developer/1045601874) | [Roman Shemet](https://appshunter.io/developer/1782773354) |

## What reviewers say

### OMessage

[App page](https://appshunter.io/ios/app/omessage-chat-with-local-ai/id6742433200)

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

**In-app purchases:** none


### Cactus Chat

[App page](https://appshunter.io/ios/app/cactus-chat/id6744444212)

Engage in private conversations with an AI directly on your device. This application runs offline, ensuring your data remains secure and local. Developers can also utilize it to test and compare the performance of different large language models.

**Highlights:** Offline AI conversations, Private data storage, Developer LLM benchmarking, Runs directly on device, Free to use

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

**In-app purchases:** none


## Frequently asked questions

### Is OMessage free?

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

### Is Cactus Chat free?

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

### Do OMessage or Cactus Chat have ads?

Neither OMessage nor Cactus Chat shows ads.

### Which is updated more often, OMessage or Cactus Chat?

OMessage ships an update every 5 days, and Cactus Chat monthly. Most recently, OMessage was updated on October 28, 2026 and Cactus Chat on October 30, 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.*