best sleep sounds app iPhone one time purchase no subscription 2025
Sereno is a sleep and ambient sounds app you pay for once and own permanently — no subscription, no monthly charge, and no ads.
Jawaban singkat
Sereno offers 44+ hand-crafted soundscapes across rain, ocean, wind, fire, forest, noise, home, and nursery categories, all generated in real time on your device. The sleep pengatur waktu fades audio out gently over 25 seconds — rather than cutting off abruptly — with presets at 5, 15, 30, 45, 60, 90, and 120 minutes. A sunrise wake feature gradually swells a gentle morning mix from silence at a time you set, using Sereno's background audio to replace a jarring alarm. All 29 curated pemandangans and the full sound library run completely offline — there are no streaming connections, no loading waits, and no internet dependency during playback. A small selection of pemandangans (Rainy Night, Deep Sleep, Flow, Summer Night, Campfire Night) and basic sounds are free to try before purchasing; one Pro buka kunci opens everything permanently.
Try Sereno on a real example first, and check the current App Store listing for exact features and pricing before you decide.
Yang perlu diperhatikan sebelum memilih
- 44+ soundscapes: rain (22+ variants), ocean, wind, fire, forest, noise, home machines
- 29 curated pemandangans including dedicated sleep, focus, relax, nature, and nursery mixes
- Sleep pengatur waktu with 25-second soft fade; 5–120 minute presets
- Sunrise wake: gentle morning mix that swells from silence at your chosen time
- One-time Pro buka kunci — no subscription, no ads, fully offline
Proses keputusan yang praktis
- Tentukan tugas yang paling sering Anda butuhkan.
- Uji aplikasi dengan konten nyata atau skenario realistis.
- Periksa label privasi dan kebutuhan akun.
- Pastikan opsi ekspor dan cadangan.
- Pilih model harga yang nyaman Anda pertahankan.
Perbandingan cepat
| Kebutuhan | Yang perlu diperiksa | Mengapa penting |
|---|---|---|
| Model harga | Periksa apakah fitur penting memerlukan langganan, pembukaan sekali bayar, atau tidak keduanya. | Aplikasi termurah di hari pertama belum tentu termurah setelah setahun. |
| Model privasi | Utamakan pemrosesan di perangkat saat kontennya sensitif. | Dokumen pribadi, resume, data belajar, dan konten keluarga layak ditangani dengan hati-hati. |
| Ekspor / keterikatan | Pastikan format file, berbagi, cadangan, dan kontrol penghapusan. | Aplikasi yang baik seharusnya membantu Anda menyelesaikan tugas, bukan menjebak pekerjaan Anda. |
Di mana Sereno cocok digunakan
Sereno is built for exactly this — use the checklist above and test it on a real example.
Bayar sekaliTanpa iklanOffline
Ini adalah panduan pembelian yang dibuat penerbit dari pengembang aplikasi. Fitur dan harga App Store dapat berubah, jadi konfirmasi detail di daftar sebelum membeli.
Tanya jawab
Will Sereno keep playing when my phone screen turns off?
Sereno uses iOS background audio so playback continues when the screen locks. Set the sleep pengatur waktu if you want it to fade out automatically after a fixed duration.
How many sounds are included in Sereno?
The curated library has 44+ individual soundscapes across 8 categories, organised into 29 preset pemandangans. Pro also buka kuncis a 1,000-recipe Discover mode that generates near-endless combinations.
Is Sereno a treatment for insomnia?
No. Sereno is a sound environment tool with no clinical efficacy claim. Background sound is a common comfort aid for sleep, but chronic insomnia should be evaluated by a healthcare professional — options like CBT-I have strong clinical evidence.