Comparison

ChatCat vs AIChater

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

Head to head
About

ChatCat

Features
Read full description

A app that allows you to interact seamlessly with ChatGPT using your own API key. β€’ Flexible Model Selection: Choose from a variety of models, including o1 models, to suit your needs and preferences. β€’ Customizable Proxy/Endpoint: Set up your own custom domain for the proxy or endpoint, giving you full control over your interactions. β€’ Unlimited Prompts: Create and manage as many unique prompts as you’d like, ensuring tailored and personalized experiences every time. β€’ Intuitive Interface: Enjoy smooth, responsive gestures and haptic feedback for a pleasant, user-friendly experience. β€’ No Hidden Costs: No subscriptions, advertisements, or data collectionβ€”just a clean, transparent app focused on your privacy and ease of use. Experience the freedom of ChatGPT with total control and no distractions.

About

AIChater

Features
Read full description

AIChater is a smart AI chat assistant designed to help you think faster, write better, and explore ideas more easily. Whether you need quick answers, writing help, translation, study support, brainstorming, daily planning, or creative inspiration, AIChater gives you a smooth and flexible AI chat experience anytime you need it. With AIChater, you can ask questions, improve your writing, generate ideas, summarize content, translate text, create messages, and have natural conversations with AI for work, study, and everyday life. Key Features β€’ Chat with AI anytime β€’ Ask questions and get helpful answers β€’ Get help with writing, rewriting, and polishing text β€’ Generate ideas for work, study, and creative projects β€’ Translate, summarize, and explain content β€’ Create emails, captions, stories, notes, and more β€’ Enjoy a clean and easy-to-use AI chat experience Premium Membership Upgrade to AIChater Premium to unlock more powerful AI chat features and enjoy full access to premium functions. We offer three membership options: β€’ Weekly Membership Flexible access to premium AI chat features on a weekly basis. β€’ Yearly Membership A great-value option for long-term access to premium AI chat features. β€’ Lifetime Membership One-time purchase for lifetime access to premium features. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Privacy Policy: https://docs.google.com/document/d/1MYYuEZJIYij2zcDlBeAz9OZgdJauhi-71xTGb-8YG08/edit?usp=sharing Terms of Service: https://docs.google.com/document/d/1x0GRYmCkv5NO6zpPDv2o94OlFBUnzFF1c_GzDZDdqSw/edit?usp=sharing

Screenshots

ChatCat4 screens
AIChater4 screens

Verdict

The call

The clearest difference is in-app purchases: ChatCat at none against AIChater's 3. AIChater's advantage is update cadence (every 4 days vs every 11 months) and iOS requirement (15.0 vs 18.0). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. AIChater sells 3 in-app purchases, starting at $1.99 per 7 days. ChatCat asks for nothing beyond the download.

UpkeepUpdate frequency

ChatCat ships an update every 11 months, AIChater every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences Β· 3 level
ChatCat versus AIChater: the parameters behind the verdict, then further details
ParameterChatCatAIChater
PriceFreeFree
Update frequencyEvery 11 monthsEvery 4 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.0 β€” better
Further details β€” not scored
Size11 MB6 MB
Age rating17+4+
Developer茡 吕OPAI LLC

In-app purchases

None

ChatCat

No in-app purchases

3 purchases

AIChater

Subscriptions2
  • week membership$1.997 Days
  • year membership$4.991 Year
One-time1
  • lifetime membership$9.99

Questions

Is ChatCat free?
ChatCat is free to download, with no in-app purchases.
Is AIChater free?
AIChater is free to download, with in-app purchases available.
Do ChatCat or AIChater have ads?
Neither ChatCat nor AIChater shows ads.
Which is updated more often, ChatCat or AIChater?
ChatCat ships an update every 11 months, and AIChater every 4 days. Most recently, ChatCat was updated on October 30, 2026 and AIChater on October 31, 2026.

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