Terms of Use
Short, because there is little to say: you buy it once, your code is yours, and nothing is published anywhere.
LAST UPDATED 28 AUGUST 2026
Crabrix is sold through the App Store, so Apple's Licensed Application End User License Agreement applies by default. This page adds the few things specific to Crabrix. Where the two disagree, Apple's terms win.
Your licence
Buying Crabrix gives you a personal, non-transferable licence to use it on the Apple devices you own or control, under the App Store terms and Family Sharing rules. It is a one-time purchase: there is no subscription and no feature held back for a second transaction.
Your code is yours
Everything you write in Crabrix belongs to you. No licence to it is claimed, it is never uploaded, and it is never read by anyone else. It is compiled on your device by a compiler that ships inside the app.
Your responsibility for what you run
Crabrix compiles and runs code you write or import, including third-party packages you choose to add from crates.io. You are responsible for what you run and for complying with the licences of any dependency you use. Programs execute inside a WebAssembly sandbox with a memory limit, no network access, and one writable directory — but a sandbox is a boundary, not a guarantee that arbitrary code is safe or correct.
No online publishing
Crabrix 1.0 publishes nothing. There is no public board, no display name and no online profile: your rating, ranks and achievements are earned and kept on your own device. Crabrix operates no service of its own, so if ranking ever goes online it will go through Apple's Game Center; it will be opt-in, and these terms and the privacy policy will be updated before that version ships.
Open-source components
Crabrix is proprietary software. The compiler, standard library, and several libraries inside it are open source under their own licences, which continue to govern those components. The full notices ship in the app under Settings → About Crabrix → Open-source licenses, and are also in the repository. Nothing in this page restricts any right those licences grant you.
What is not promised
Crabrix compiles Rust on a phone. That is a hard thing to do and the limits are described plainly on the About page: some crates cannot build on device, and first builds are slower than on a laptop. The app is provided as is, without a warranty that it will suit a particular purpose or that any specific crate will compile. To the extent the law allows, liability is limited to the amount you paid for the app.
This is not a disclaimer meant to wave problems away. If something is broken, write to me and I will fix it or tell you honestly that I cannot.
Changes
These terms may change as the app changes. The date at the top says when they last did, and material changes will be described in the app's release notes.
Contact
Serhii Ziborov —