AF vs ChatKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AF
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For AF-21 & P-901 IoTStation message receiving.
ChatKit
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ChatKit-AI bot ,Experience Fast, Reliable AI Chat with Seamless API Integration Powered by Your Own API Key Tired of laggy AI chat apps that crash, freeze, or leave you waiting? This app is built to solve that. With support for your API, you can enjoy ultra-fast, smooth, and highly responsive AI conversations—anytime, anywhere. No more limitations. Just bring your own API key, switch effortlessly between platforms, and get started instantly. Whether you’re coding, writing, learning, or just exploring ideas, this app gives you the flexibility and performance you need. Key Features: • Dual API Suppor, You choose your AI engine. • Effortless Switching: Swap between APIs with just a few taps—ideal for users who want maximum flexibility. • Lightning-Fast Response: Say goodbye to network delays or sluggish performance. Enjoy real-time chat, powered directly by your API. • No Account Required: Privacy-first design—just plug in your API key and go. No signups, no logins. • Clean & Minimal UI: Built for productivity and focus, the interface stays out of your way and keeps you in the flow. • Stable and Reliable: Designed for consistent uptime and smooth interaction, even during high-demand periods. Who Is It For? This app is perfect for: • Developers who want a quick way to test or use AI models • Students seeking help with studying, research, or writing • Professionals who rely on AI for productivity and ideation • Anyone who wants fast, flexible, and private access to advanced AI chat tools Whether you’re working, learning, or just curious—this app is your always-ready, ultra-reliable AI assistant.
Screenshots
Verdict
The clearest difference is update cadence: ChatKit at every 4 months against AF's every 38 months. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
AF ships an update every 38 months, ChatKit every 4 months. The most recent releases landed on September 15, 2026 and December 20, 2025 respectively.
| Parameter | AF | ChatKit |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 38 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 16.2 | 16.0 — better |
| Further details — not scored | ||
| Size | 140 MB | 0 MB |
| Age rating | 4+ | 17+ |
| Developer | john Cheng | Hang Thanh Thi Nguyen |
In-app purchases
AF
No in-app purchases
ChatKit
No in-app purchases








