CATAL, wherever you are.
Science, your projects and Cati. Open your space from your phone.
Download the app
A lightweight Android app for access to CATAL.
How do I install or update?
- Download the APK, then open it from Downloads.
- If Android asks, allow this browser to install this app. Keep Play Protect enabled.
- To update, keep CATAL installed and open the new file.
CATAL on iPhone
iPhone file · advanced installation
Native app compiled for iPhone and iPad. This file is unsigned: downloading alone does not install it.
Free with your Apple Account. SideStore needs a computer for initial setup. Afterwards, installation and signing renewal can happen on the iPhone. Signing must be renewed every 7 days. Installation on an iPhone has not yet been tested.
Install with SideStore
- First time
Set up SideStore using its official guide, a computer and your Apple Account. On the iPhone, prepare Wi-Fi and LocalDevVPN as instructed in the guide.
Free setup guide - SideStore is already set up
Open this page in Safari on your iPhone, enable the required local VPN, then tap below. SideStore retrieves the file for signing and installation.
Open CATAL in SideStore
Button does not open?
This link requires SideStore to be installed and configured. If it does not open, use the official guide or download the IPA below and import it from SideStore. The button does not confirm successful installation.
Keep SideStore working to renew before expiry. Background renewal is not guaranteed. The free account permits 3 active apps, including SideStore. CATAL does not request your Apple password.
SideStore operation and limitsHow do I install this file?
- Download the IPA to a Windows PC or Mac.
- Install Sideloadly from its official website, then connect your iPhone. Follow its instructions for dependencies and connection.
- Import the IPA and sign with your own Apple Account in the tool. CATAL does not request your Apple credentials.
- Enable Developer Mode and trust your profile if iOS asks. A free account allows up to 3 personally signed apps to be active.
- Renew signing before it expires. Automatic renewal depends on the tool, computer and connection.
AltStore Classic is another option for importing this file after its initial setup.
Without a computer: web app
Use CATAL as a web app from Safari, with an icon on your Home Screen.
- 1Open this page in Safari
From another app, copy the link and open it in Safari.
- Tap Share
In the Safari toolbar or page menu.
- Add to Home Screen
Enable “Open as Web App” if offered, then tap Add.
Prefer your browser?
Your CATAL account stays the same. No installation is needed to use the website.
Continue on the website