Privacy & terms
Effective 16 October 2026. Applies to this website, hayah.dev.
This website
This website collects nothing. It sets no cookies, runs no analytics, loads no third-party scripts, fonts or trackers, and has no forms. Your color-theme choice, if you make one, is stored only in your own browser and never sent to us.
The site is served by Cloudflare, which, like any web host, handles the technical request your browser makes (such as your IP address) in order to deliver the page. We add no analytics or tracking of our own.
Our apps
Each app has its own privacy policy and terms, because what each app does with data is different. Please read the one for the app you use:
- HEIC Converter: Privacy · Terms
- XLSX Editor: Privacy · Terms
- Audio Converter: Privacy · Terms
- EPUB Reader: Privacy · Terms
- AI Chat: Privacy · Terms
Purchases are made through the Microsoft Store. We never see your payment details.
If you write to [email protected], we use your message and address only to reply to you.
Terms of use for this site
The information here is provided as is, and we may change it at any time. Apps are licensed through the Microsoft Store under their own terms. HAYAH is an independent publisher. Microsoft, Microsoft Store, Windows and Excel are trademarks of Microsoft; Claude is a trademark of Anthropic, PBC. XLSX Editor is not Microsoft Excel and is not affiliated with Microsoft. AI Chat is an independent app and is not affiliated with Anthropic.
Changes
If this policy changes, the date above changes with it.