Caty App

In-app purchases
Content rating
Everyone
1+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

Caty App is a multi-model AI chat application that puts you in control. Connect to leading AI providers using your own API keys, or try Caty AI instantly with no setup required.

MULTIPLE AI MODELS
Chat with Claude (Anthropic), GPT (OpenAI), Grok (xAI), and any OpenAI-compatible provider. Switch between models anytime from the dropdown menu. Add unlimited custom providers.

COUNCIL MODE
Ask multiple AI models the same question and compare their perspectives. Tag models with @mentions and watch them respond one by one, each seeing what others said before them.

TRY CATY AI
No API keys? No problem. Purchase 100 messages for just €0.99 and start chatting instantly. Powered by Anthropic's Claude technology.

THREE UNIQUE THEMES
Choose your style — Caty (classic), Loli (minimal), or Neko (technical). Each theme has full light and dark mode support.

PRIVACY FIRST
Your data stays on your device. API keys are never sent to our servers. Chat history is stored locally with optional iCloud sync between your Apple devices.

KEY FEATURES
- Voice input and text-to-speech
- File and image attachments with AI analysis
- Web search integration
- Deep thinking mode with visible reasoning
- Markdown rendering with code highlighting
- Cross-device sync via iCloud
- Custom system prompts per chat
- Chat history with pinning

Free to use with your own API keys. All updates included.
Updated on
May 19, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Financial info and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

What’s new

Bug fixes and improvements.
Content rating
Everyone
In-App Purchases
Learn more

App support

Phone number
+37253729353
About the developer
OU Catyonic
antifaust@gmail.com
Madara tn 9a 10612 Tallinn Estonia
+372 5372 9353