# Kai vs Aigis Assistant

The clearest difference is in-app purchases: Kai at none against Aigis Assistant's 2. Kai also leads on update cadence (every 3 days vs weekly). Aigis Assistant's advantage is iOS requirement (13.0 vs 15.3). On price, ads and device support there is nothing between them.

Both are free to download. Aigis Assistant sells 2 in-app purchases, starting at $14.99 per month. Kai asks for nothing beyond the download.

Kai ships an update every 3 days, Aigis Assistant weekly. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Kai | Aigis Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/kai-ai/id6758148023/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Free | — |
| Size | 127 MB | 83 MB |
| Requires iOS | 15.3 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Simon Schubert](https://appshunter.io/developer/1219649975) | [SOMAIEH ESMAILY FARAHMAND](https://appshunter.io/developer/6793606858) |

## 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


### Aigis Assistant

[App page](https://appshunter.io/ios/app/aigis-assistant/id6793606856)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AIgis Premium | $14.99 | per month |
| AIgis Premium — Annual | $149.00 | per year |


## Frequently asked questions

### Is Kai free?

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

### Is Aigis Assistant free?

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

### Do Kai or Aigis Assistant have ads?

Neither Kai nor Aigis Assistant shows ads.

### Which is updated more often, Kai or Aigis Assistant?

Kai ships an update every 3 days, and Aigis Assistant weekly. Most recently, Kai was updated on October 16, 2026 and Aigis Assistant on October 8, 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.*