# Kai vs Expressly

The clearest difference is in-app purchases: Kai at none against Expressly's 1. Expressly's advantage is update cadence (daily vs every 3 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Expressly sells 1 in-app purchase, starting at $3.99 per month. Kai asks for nothing beyond the download.

Kai ships an update every 3 days, Expressly daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Kai | Expressly |
| --- | --- | --- |
| 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 | **Daily** |
| Monetization | Free | — |
| Size | 127 MB | 39 MB |
| Requires iOS | 15.3 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Simon Schubert](https://appshunter.io/developer/1219649975) | [Kamil Wolski](https://appshunter.io/developer/6772614326) |

## 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


### Expressly

[App page](https://appshunter.io/ios/app/expressly-stop-overthinking/id6772614323)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Expressly Pro | $3.99 | per month |


## Frequently asked questions

### Is Kai free?

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

### Is Expressly free?

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

### Do Kai or Expressly have ads?

Neither Kai nor Expressly shows ads.

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

Kai ships an update every 3 days, and Expressly daily. Most recently, Kai was updated on October 24, 2026 and Expressly on October 25, 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.*