KittyLitter vs Model Usage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KittyLitter
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.
- 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
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Litter is a native mobile client for Codex. Connect to local or remote Codex servers, manage coding sessions from anywhere, and keep conversations moving without opening your laptop. Features: - Add a direct server endpoint, connect over SSH, or pair with Alleycat by QR code - Connect to remote machines over SSH and start Codex remotely - Talk to Codex with voice input for fast, hands-free prompts - Review conversation history, reasoning, code blocks, and images in a mobile-native UI - Keep coding sessions on servers you control, with optional Alleycat relay pairing and OpenAI voice processing Litter is open source and built for people who want their coding agent with them wherever they are.
Model Usage
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Model Usage is a real time dashboard for your AI coding tool usage. See how much of your five hour window and weekly quota you have used, watch your session tick up live, and get notified before you hit a limit. HOW IT WORKS A small client runs on your computer and reads the usage files that your AI coding tools already write locally. It forwards that usage to a server address you control. The apps pair with that server over a QR code or short pair code. No account, no email, no login. LIVE WHERE YOU ALREADY LOOK - Live Activity: a glanceable card with your current session and weekly usage, visible on the lock screen and Dynamic Island. - Home Screen widgets: compact and expanded sizes that show your session, weekly totals, and rate multipliers at a glance. - Lock Screen widgets: a tiny usage indicator right next to the clock. PAIRS WITH THE REST OF YOUR DEVICES Once you are paired on one device, the same setup flows to every companion app automatically. Send a snapshot to anyone in a conversation with the Model Usage messaging app. PRIVACY BY DESIGN No analytics. No tracking. No accounts. No advertising SDKs. Your usage data goes from your computer to a server you choose, and then to your own devices. Model Usage never sees it. FEATURES - AI coding tool usage tracking, side by side - Five hour session window and weekly window - Live Activity with Dynamic Island integration - Companion apps across every size of screen - Messaging app for sharing usage snapshots - Lock Screen and Home Screen widgets in all sizes - Live rate multiplier awareness. Rate changes are reflected in real time. - Open pair code or QR flow. No account required. - Dark mode throughout SETUP IN UNDER A MINUTE 1. Install the desktop client. 2. Copy the pair code. 3. Enter it in the app. That is it. The setup guide lives at modelusage.app/setup. Model Usage is built by a solo developer and does not collect, store, or share any personal data. See modelusage.app/privacy for details.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | KittyLitter | Model Usage |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (44 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 44 — better | — |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 150 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | sherif cherfa | Rayan Khan |
In-app purchases
KittyLitter
- $9.99 Tip$9.99
- $24.99 Tip$24.99
- $49.99 Tip$49.99
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- $99.99 Tip$99.99
Model Usage
No in-app purchases









