SonoTer: Sleep, Calm & Focus
Raul Herrera Health & Fitness iPhoneiPadiPod touch
SonoTer: Sleep, Calm & Focus is a free Health & Fitness app for iPhone and iPad by Raul Herrera. Requires iOS 17.0. Updated October 18, 2026.
- Price
- Free
- on the App Store
- Size
- 857 MB
- Age 4+
- Updated
- Oct 18
- 2026 · v2.8.9
Screenshots
About SonoTer: Sleep, Calm & Focus
Sometimes you need quiet. Sometimes you need the nerve for your next step. SonoTer walks with you through guided meditations, visualisations, breathing and sound. In the evening to wind down, mid-day to pause, or right before something that matters to you. Pick what you need now. A voice guides you step by step, in English, German or Spanish. GET READY FOR YOUR MOMENT An exam. An interview. Speaking in front of people. A competition. In the guided visualisations you walk through the situation in your mind: you picture the place, settle your attention and rehearse how you want to meet the moment. Eighteen guided scenes for mental practice and for rest. MAKE TIME TO WIND DOWN Close the day with one of the twenty-one guided meditations, including four techniques by José Silva, Carl Jung's active imagination and twelve meditations on Jung's archetypes, or with autogenic training. Follow the voice, feel your breathing and take the time to arrive at calm. There is nothing to achieve here. TAKE A BREATHING PAUSE Four guided breathing techniques invite you to bring your attention to your breathing. Choose the one that suits you and follow along. MEET YOUR THOUGHTS MORE CLEARLY How do you speak to yourself? Meditations, affirmations and guided exercises for reframing thoughts give you room to hear your inner dialogue and try another view. LET YOUR DAY SETTLE The guided review of the day invites you to notice what you felt and to name it. Step by step you look at what moved you, with time to feel it and think it over. SHAPE YOUR OWN SOUND Fourteen frequency tones, binaural beats and compositions with singing bowls. Build your own frequency mix and set the volume of voice and background separately. EASY TO START • A full session free, every day. • No account and no sign-up. • Works offline, wherever you are. • No ads and no trackers: just an anonymous usage count, which you can switch off in Settings. • Voice guidance in English, German and Spanish. • On iPhone and iPad. BACKGROUND TO READ Every technique has its “Why does this work?”: what it trains and which research it builds on. SONOTER PRO With SonoTer Pro you get access to all the content. Choose between a monthly and a yearly subscription. The price, and any free trial available, are shown before you confirm. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. You can manage and cancel it in your Apple account settings. SonoTer supports general wellbeing. It is not a medical device and does not replace professional advice or treatment. Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://sonoter.com/#datenschutz
What’s new
Version 2.8.9 · Updated October 18, 2026
Your first session now fits what you came for: if you arrive looking for frequencies, you start with 432 Hz.
App privacy
The developer, Raul Herrera, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- User Content: Other User Content
- Search History: Search History
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Crash Data, Performance Data
Used for: Analytics
Alternatives to SonoTer: Sleep, Calm & Focus
Looking for apps like SonoTer: Sleep, Calm & Focus? Here are 6 similar apps on the App Store.
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Happy Shell AI
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Selena: Sleep Sounds for Women
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Noctura: Sleep Sounds & Focus
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Beatrunner Pro
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Labor Münster
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Portals: Self-Regulation tool
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| SonoTer: Sleep, Calm & Focus | – | Free | October 18, 2026 | |
| Happy Shell AI | – | Free | Dec 9, 2025 | Compare |
| Selena: Sleep Sounds for Women | – | Free | Jun 10, 2026 | Compare |
| Noctura: Sleep Sounds & Focus | – | Free | Aug 8, 2026 | Compare |
| Beatrunner Pro | – | Free | Aug 25, 2026 | Compare |
| Labor Münster | – | Free | Aug 3, 2026 | Compare |
| Portals: Self-Regulation tool | – | Free | Oct 7, 2026 | Compare |