# KittyLitter vs Model Usage

The clearest difference is in-app purchases: Model Usage at none against KittyLitter's 4. Model Usage also leads on update cadence (every 3 days vs weekly) and device support (6 vs 3). On price, ads and iOS requirement there is nothing between them.

Both are free to download. KittyLitter sells 4 one-off in-app purchases. Model Usage asks for nothing beyond the download.

KittyLitter ships an update weekly, Model Usage every 3 days. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | KittyLitter | Model Usage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (44 ratings)](https://appshunter.io/ios/app/kittylitter/id6759521788/reviews)** | — |
| Number of ratings | **44** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free | — |
| Size | 150 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [sherif cherfa](https://appshunter.io/developer/6792739580) | [Rayan Khan](https://appshunter.io/developer/1863389662) |

## What reviewers say

### KittyLitter

[App page](https://appshunter.io/ios/app/kittylitter/id6759521788)

This app provides a native mobile interface for interacting with Codex servers. It allows users to manage coding sessions remotely, review conversation history, and communicate with the AI using voice input, all without needing a laptop.

**Highlights:** Discover local Codex servers, Connect to remote servers via SSH, Voice input for AI prompts, Review conversation history and code, Mobile-native UI, Stay connected to your own servers

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $9.99 Tip | $9.99 | one-time |
| $24.99 Tip | $24.99 | one-time |
| $49.99 Tip | $49.99 | one-time |
| $99.99 Tip | $99.99 | one-time |


### Model Usage

[App page](https://appshunter.io/ios/app/model-usage/id6761831599)

**Features:** Apple Watch app, iMessage stickers

**In-app purchases:** none


## Frequently asked questions

### Is KittyLitter free?

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

### Is Model Usage free?

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

### Do KittyLitter or Model Usage have ads?

Neither KittyLitter nor Model Usage shows ads.

### Which is updated more often, KittyLitter or Model Usage?

KittyLitter ships an update weekly, and Model Usage every 3 days. Most recently, KittyLitter was updated on October 13, 2026 and Model Usage on October 3, 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.*