Comparison

Q.AT vs MLC Chat

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Q.AT

Read full description

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

About

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.

Highlights
  • Local AI model chat
  • Offline functionality
  • No internet required
  • Privacy-focused
  • Open-source project integration
  • Downloadable language models
Features
Read full description

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

Q.AT4 screens
MLC Chat2 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
Q.AT versus MLC Chat: the parameters behind the verdict, then further details
ParameterQ.ATMLC Chat
PriceFreeFree
Rating—4.2 (78 ratings) — better
Positive reviews—68.3% of reviews
Number of ratings—78 — better
Update frequencyEvery 4 days — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size2 MB1.7 GB
Age rating4+17+
DeveloperYasin Al-HammadiTianqi 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
Show 12 more
  • 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
Show 9 more
  • 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

None

Q.AT

No in-app purchases

None

MLC Chat

No in-app purchases

Questions

Is Q.AT free?
Q.AT is free to download, with no in-app purchases.
Is MLC Chat free?
MLC Chat is free to download, with no in-app purchases.
Do Q.AT or MLC Chat have ads?
Neither Q.AT nor MLC Chat shows ads.
Which is updated more often, Q.AT or MLC Chat?
Q.AT ships an update every 4 days, and MLC Chat every 2 months. Most recently, Q.AT was updated on September 30, 2026 and MLC Chat on October 6, 2026.

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