Q.AT vs MLC Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Q.AT
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Hello, I'm Q.AT, your personal assistant to communicate with ChatGPT using your API key. I'm designed to be user-friendly and intuitive, so you don't need any programming experience to use me. I made it easy to input your OpenAI API key and start communicating with ChatGPT in just a few clicks. I’m using OpenAI's AI language model to provide you with personalized and intelligent responses to your questions and prompts. I leverage the power of OpenAI's GPT-3 Turbo language model to provide you with the most advanced and capable language processing technology available. Whether you're a developer looking to gain experience with ChatGPT, or just someone who wants to take advantage of the power of this amazing language model or just wants to chat, I’m the perfect solution. Try me out today and experience the future of intelligent communication. Features: • Classic chatting with ChatGPT • Archive conversations • Mark, copy and share messages • Text-to-Speech and Speech-to-Text • Several speech languages • No ads Hints: • Don’t share your ChatGPT API key with others. • Your conversations are saved on your device. Nobody has access to it, except you. Notes: • This app uses the official and Public API from OpenAI & GPT-3 Turbo Technologies. • This application is not endorsed by or affiliated with OpenAI. OpenAI, its name, trademark, and other aspects of the app are trademarked and owned by their respective owners. Privacy policy: http://appostroph.com/appo/qat-privacy-policy OpenAI terms of use: https://openai.com/policies/terms-of-use OpenAI privacy policy: https://openai.com/policies/privacy-policy Contact: http://appostroph.com/appo/contact
MLC Chat
Engage in conversations with open language models directly on your iPad or iPhone. Once a model is downloaded, all interactions occur locally, ensuring privacy and offline functionality without internet access. This app is designed for non-commercial use, allowing you to run various open-source language models on your device.
- Local AI model chat
- Offline functionality
- No internet required
- Privacy-focused
- Open-source project integration
- Downloadable language models
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MLC Chat lets users chat with open language models locally on ipads and iphones. After a model is downloaded to the app, everything runs locally without server support, and it works without internet connections do not record any information. Because the models run locally, it only works for the devices with sufficient VRAM depending on the models being used. MLC Chat is part of open source project MLC LLM, with allows any language model to be deployed natively on a diverse set of hardware backends and native applications. MLC Chat is a runtime that runs different open model architectures on your phone. The app is intended for non-commercial purposes. It allows you to run open-language models downloaded from the internet. Each model can be subject to its respective licenses.
Screenshots
Verdict
The clearest difference is update cadence: Q.AT at every 4 days against MLC Chat's every 2 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.
Q.AT ships an update every 4 days, MLC Chat every 2 months. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.
| Parameter | Q.AT | MLC Chat |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.2 (78 ratings) — better |
| Positive reviews | — | 68.3% of reviews |
| Number of ratings | — | 78 — better |
| Update frequency | Every 4 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 1.7 GB |
| Age rating | 4+ | 17+ |
| Developer | Yasin Al-Hammadi | Tianqi Chen |
Bugs and requests
Q.AT
Not enough reviews yet to summarise bugs or requests.
MLC Chat
Reported bugs
17 issues- Phi model crashes on iOS 26.0.1 17 Pro Max
- App crashes on iPad Pro 4th Gen, iPadOs 17.7
- RedPajama model crashes app on initialization
- Update is extremely slow
- Download model button disabled in new version
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- RedPajama model crashes, custom model download removed
- App closes when hitting send on iPhone 13
- Conversation resets when app is backgrounded
- Vicuna and Mistral 7B models cause crashes
- Some 7b q4f16/q4f32 models crash on iPhone 15 Pro
- App crashes on iPhone 13 mini
- Cannot load other models from URL
- Crash on iPhone 12
- Severe heating and frequency reduction on A15
- Low VRAM failed initialization on 3GB LP DDR4X phone
- Cannot run 4bit model on iPhone 15 with 8GB RAM
- Loading models from HF MLC official Repo causes crashes
Requested features
14 requests- Ability to import custom models (from URL/Hugging Face)
- Support for more specific models (DeepSeek, Phi-2, Gemma 2B/7B, MoE Mixtral 8x7B, LLaVA)
- History of conversations
- iOS shortcuts support
- Ability to export entire responses
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- Information on VRAM requirements per phone/model
- Ability to change system message/create custom profiles
- Ability to edit responses and system prompt
- Add coffee support
- Delete downloaded models
- Change settings per model (repetition penalties, temperature)
- How-to guide for importing/recompiling LLMs
- Estimate model compatibility before download
- Support for CN and ZH languages
In-app purchases
Q.AT
No in-app purchases
MLC Chat
No in-app purchases









