FAQ

What platforms and versions of Anki are supported?

Anki SRS Kai is supported on the following platforms

• Anki Desktop (Windows, Mac, Linux): 24.11+
• AnkiDroid (Android): 2.20.0+
• AnkiMobile (iOS): 24.11+

IMPORTANT: AnkiWeb is not supported. There is no technical limitation as WebAssembly is supported by every major browser. However, support for the custom scheduler must be enabled by Anki Web itself for the custom scheduler to work.

Because this is implemented in JavaScript, it is not limited to the computer version. AnkiMobile and AnkiDroid both support it as well, and AnkiWeb may also support it in the future. This will allow advanced users to make adjustments to the standard scheduling behaviour, that apply on all platforms.

Can I enable FSRS and Anki SRS Kai at the same time?

While the custom scheduler (Anki SRS Kai) will continue to work even if FSRS is enabled, it is highly recommended to turn FSRS off to avoid any potential unexpected behaviours not covered in our integration test suite.

What is the large binary blob called wasmBytes in the customer scheduler and is it safe?

The large binary blob called wasmBytes in the custom scheduler is the code that runs the Anki SRS Kai scheduler. It is compiled from Rust to WebAssembly and is safe by design. Each WebAssembly module is ran in a memory-safe, sandboxed environment, separated from the host runtime. The source code is publicly available.