Catalyst: AI Workspace
Utilities
Free · Designed for iPad. Not verified for macOS.
The app is free — chat with built-in free models out of the box, or bring your own API keys for Claude, GPT, and Gemini. Voice, images, video, and zero lock-in.
Catalyst puts today's best AI models in one place — and lets you switch between them with a tap. Chat with models from Anthropic, OpenAI, Google, and more in a single conversation, and bring your own API keys so you're never locked in.
WHAT YOU CAN DO
• Chat with multiple AI models — pick the right one for each question, or compare answers side by side
• Generate images from a prompt, and create or animate short video clips
• Run Python in a secure sandbox for calculations, data analysis, and charts
• Search the web for current information, with sources
• Attach photos and files and ask about them
• Give the assistant a memory that carries useful context across conversations
BRING YOUR OWN MODELS
Catalyst is model-agnostic. Connect your own provider keys — Anthropic, OpenAI, Google, or any OpenAI-compatible endpoint — and use the models you choose at the provider's own rates. A better, cheaper model ships every few weeks; point Catalyst at whatever's best today.
YOUR DATA, YOUR CONTROL
Your conversations sync securely so your history follows you across devices. Export everything you've created at any time, and delete individual chats — or your whole account — from inside the app.
Catalyst on iPhone and iPad is the companion to the full workspace at catalyst.voov.ai, where you can also build workflows, mini apps, and connect data sources.
Sign in with Apple, Google, or email.
Ratings & Reviews
Long conversations now compact themselves — earlier messages are summarized in place (tap the divider to read the summary), so chats keep their context and stay fast. Save generated images and videos to your photo library, enjoy images that always fit your screen, and much smoother scrolling while replies stream in.
The developer, ObjectGraph LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ObjectGraph LLC
- Size
- 31.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Profanity or Crude Humor
Mature or Suggestive Themes
Medical Treatment information
Alcohol, Tobacco, Drug Use or References
Contains
Health or Wellness Topics
- Copyright
- © 2026 ObjectGraph LLC