Aplikasi tidur & derau putih terbaik yang gratis untuk memulai di iPhone (2026)
If you want to try a sleep & derau putih app before buka kunciing complete content, this guide explains what to check and where Sereno fits.
Our free-to-start pick: Sereno
Sereno — A high-end sound machine for sleep, focus & calm — free to try, buka kunci once
Gratis untuk mulaiBuka kunci sekali bayarTanpa langgananTanpa iklanOffline
Access: Free to start, with a one-time buka kunci for complete content.
Dapatkan Sereno di App Store →What to check before you choose
- Access model: compare the current free, purchase and subscription options.
- Privacy: does the work happen on-device, or is your content uploaded?
- Offline: does it work without an internet connection or account?
- Export & lock-in: can you get your files/data out freely?
- Real test: try a realistic task before paying for advanced features.
How free-to-start access fits
Free-to-start access lets a family try the learning experience before choosing the one-time complete-content buka kunci.
The sleep & derau putih category includes well-known options such as Calm, Bettersleep, Headspace. Features, privacy practices and access terms can change, so compare their current App Store listings directly.
Tanya jawab
Can I try a sleep & derau putih app before buka kunciing all content?
Yes. Sereno is free to start and offers a one-time buka kunci for complete content, with no recurring subscription.
What should I look for in a sleep & derau putih app?
Check current access terms, privacy (on-device vs cloud), offline support, export or backup options, and whether an account is required.
Is Sereno independent?
Yes — this is an honest guide written by the developer of Sereno. App names and trademarks belong to their respective owners.