# Kai vs Compass

The clearest difference is update cadence: Kai at every 3 days against Compass's fortnightly. Kai also leads on ratings volume (4 vs 1) and iOS requirement (15.3 vs 26.0). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Kai against 5.0 for Compass. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Kai ships an update every 3 days, Compass fortnightly. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Kai | Compass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/kai-ai/id6758148023/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/compass-local-ai/id6760742955/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 127 MB | 2 MB |
| Requires iOS | **15.3** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Simon Schubert](https://appshunter.io/developer/1219649975) | [Shryas Bhurat](https://appshunter.io/developer/1883531179) |

## What reviewers say

### Kai

[App page](https://appshunter.io/ios/app/kai-ai/id6758148023)

This open-source AI companion offers fast, simple, and private chat experiences powered by models like Llama and Gemini. It's designed for quick answers, brainstorming, writing, and learning with a minimalist interface.

**Highlights:** Blazing fast AI responses, Minimalist and intuitive interface, Open-source and transparent code, Choice of AI models (Llama, Gemini), Context-aware multi-turn conversations, Privacy-focused, no user tracking

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

**In-app purchases:** none


### Compass

[App page](https://appshunter.io/ios/app/compass-local-ai/id6760742955)

This AI assistant processes all your questions and attached screenshots locally on your device. Enjoy private, real-time answers without data collection or cloud transmission.

**Highlights:** On-device AI processing, Screenshot and photo analysis, Notes-style chat interface, Private by design, No data collection, Streaming answers

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

**In-app purchases:** none


## Frequently asked questions

### Is Kai free?

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

### Is Compass free?

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

### Which has better reviews, Kai or Compass?

Kai and Compass are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Kai or Compass have ads?

Neither Kai nor Compass shows ads.

### Which is updated more often, Kai or Compass?

Kai ships an update every 3 days, and Compass fortnightly. Most recently, Kai was updated on October 24, 2026 and Compass on October 14, 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.*