# NIZU reCaptcha: Does this work on mobile devices?

> Yes. The challenge uses the Web Crypto API, which is supported by all modern mobile and desktop browsers. The computation is light enough that it completes quickly even on older phones. (FAQ)

- Page: https://dashboard.nizu.io/knowledge_base/view/136-nizu-recaptcha-does-this-work-on-mobile-devices
- Part of: [Knowledge base](https://dashboard.nizu.io/knowledge_base/llms.txt) on NIZU — https://dashboard.nizu.io/llms.txt
- Updated: 2026-10-25T11:50:03Z

Yes. The challenge uses the Web Crypto API, which is supported by all modern mobile and desktop browsers. The computation is light enough that it completes quickly even on older phones.