# Peaks: Sleep & Energy — Work With Your Body Clock > Personalized energy predictions based on sleep analysis and biological rhythms. (iPhone/iPad app by Vogelhaus Apps GmbH.) - Source: https://appshunter.io/ios/app/peaks-sleep-and-energy/id6446705377 (this page in markdown: same URL + `.md`) - Developer: [Vogelhaus Apps GmbH](https://appshunter.io/developer/1563696067) - Category: Health & Fitness, Productivity - Price: Free with in-app purchases - Rating: 4.70/5 from 281 App Store ratings · 65 written reviews indexed - Age rating: 4+ - Requires: iOS 18.0 · 231 MB - Languages: American English, French (France), German (Germany), Hungarian, Italian, Japanese, Polish, Brazilian Portuguese, Chinese (Simplified, China), European Spanish and 1 more - Released: 2023-06-22 - Data updated: 2026-08-31 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/peaks-sleep-and-energy/id6446705377/reviews.md ## What is Peaks? That afternoon crash isn't random: it's your rhythm. Peaks analyzes your sleep to predict exactly when you'll focus, fade, and recover, so you stop fighting your body and start working with it. No manual tracking required, if you already track sleep, you're ready. WHY PEAKS WORKS Most sleep apps show you what happened. Peaks shows you what to do about it. Your energy rises and falls in predictable waves driven by two systems: your circadian rhythm (your 24-hour internal clock) and sleep pressure (how long you've been awake). Peaks models both using the two-process model of sleep regulation, the same science behind NASA's astronaut protocols. The result: a personalized energy curve that updates every morning based on your actual sleep. WHAT PEAKS TRACKS Energy Peaks – See exactly when focus is highest. Schedule deep work and important tasks during these windows. Energy Dips – Know when crashes are coming before they hit. Plan breaks and lighter tasks accordingly. Sleep Timing – Track when your body releases melatonin so you know when to dim lights and wind down. Sleep Debt – Every missed hour accumulates. See your running total and how it clears over time. Recovery Score – HRV and heart rate analysis shows how ready you are for today. Updated every morning. Vitals – Watch for unusual heart rate patterns that might indicate your body is fighting something off. Sleep Score – Five components of sleep quality: duration, timing, efficiency, consistency, and debt impact. BUILT FOR YOUR WORKFLOW Widgets for Home Screen, Lock Screen, and StandBy, your rhythm at a glance Apple Watch app with complications for energy predictions Calendar export overlays peaks and dips on your schedule Shortcuts integration for custom automations Smart notifications for peaks, dips, and wind-down timing CONNECTS TO YOUR DATA Works with Apple Watch, Apple HealthKit, Oura Ring, and Garmin. No manual logging, if your sleep is tracked, Peaks uses it automatically. YOUR DATA STAYS YOURS All calculations happen on-device. No accounts, no servers, no third parties. Your health data never leaves your iPhone. Join 100,000+ people planning around their biology. ~ Flo & Clemens from Vienna Peaks is a wellness tool, not intended for medical diagnosis or treatment. ## Key features - Personalized energy curve predictions - Energy peak and dip identification - Sleep timing and debt tracking - Recovery score with HRV analysis - Sleep quality scoring - Home and Lock Screen widgets - Calendar export ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Yearly | $39.99 | per year | | Yearly - Referral | $39.99 | per year | | Yearly - Referrer | $39.99 | per year | | Yearly | $39.99 | per year | | Monthly | $5.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime | $149.99 | one-time | ## Recent user reviews (10 of 65) All indexed reviews: https://appshunter.io/ios/app/peaks-sleep-and-energy/id6446705377/reviews.md ### 1/5 — Нет русского *2026-05-31* Нет русского языка ### 5/5 — Incredible *2026-03-19* This app has completely changed the way that I view my daily cycle. As someone medicated for ADHD, I’m always very productive in the morning, and this app has shown me that when that hyper-focus ends, it doesn’t mean that the day is over. The sleep data is also phenomenal and bridges the gap between the bare bones Health app, and others that have too much info for average users. Looking forward to further updates! ### 5/5 — Insights that really help you *2026-03-12* As a freelancer who works from home and has chronic pain this has really helped me reorganize my day to capitalize on when I’m able to work and when I should exercise. The interface is great and I’ve even contacted the developer with a suggestion which they are implementing soon. ### 5/5 — Superb app *2026-03-06* Top quality and functionality Also the devs are super nice! ### 5/5 — Interesting App *2026-02-25* Seems to be pretty accurate for those who could use it, however I wouldn’t use it very often. Five stars for sure. **Developer response:** Thank you so much for the five stars, we really appreciate it! If there’s anything we could add or improve to make the app more useful for you on a regular basis, we’d love to hear your thoughts at contact@vogel.haus. - Flo & Clemens ### 5/5 — Day Planning *2026-02-19, version 2026.1* This app is beautifully designed, and very easy to access the information I’m looking for at a quick glance. It’s also very customizable as to what information you actually want to see. Overall amazing app! ### 4/5 — Lovely! *2026-01-26, version 2025.3.2* A lovely app… better than the better known rival. The insights section is beautifully presented. If you can find a way to make the day view a little sleeker, this would be the perfect app. Accurate and worth the subscription if you want to plan your day around your circadian rhythm. ### 5/5 — It’s a good app *2026-01-23* I really like the app, it has actually helped with my life. I used to rise but it doesnt give as much advice as this app. Though I do feel rise is better with tracking sleep since they better accommodate for non Apple Watch folks **Developer response:** Thank you so much for your amazing review. We’re actively thinking about how we can improve the experience for non Apple Watch users. If you’re open to sharing more details about what you feel is missing, we’d genuinely love to hear from you at contact@vogel.haus. - Flo & Clemens ### 5/5 — Best in class *2026-01-20, version 2025.2.1* This app is simply superb. Truly. It knows its tasks and it simply does it better than any other app of its kind for a very reasonable price. I wish more apps were like it. If one of their devs reads this review, hello! You’re doing an amazing job!!! ### 5/5 — Great UI/UX *2026-01-19* Great ui to view energy levels throughout my day ## Frequently asked questions about Peaks ### What does the Peaks app do? Peaks analyzes your sleep data to predict your daily energy levels, identifying times when you'll be most focused and when you're likely to experience energy dips. It helps you align your tasks with your body's natural rhythms for improved productivity and well-being. ### How does Peaks track my energy and sleep? The app uses the two-process model of sleep regulation, analyzing your circadian rhythm and sleep pressure. It integrates with devices like Apple Watch, Oura Ring, and Garmin, and uses Apple HealthKit to automatically import your sleep data without manual logging. ### Is Peaks a free app? The app offers a freemium model. While core features for analyzing sleep and predicting energy are available, advanced insights and integrations may require a subscription or in-app purchase. ### What devices is Peaks compatible with? Peaks is designed for iOS devices and offers an Apple Watch app. It connects with Apple Watch, Apple HealthKit, Oura Ring, and Garmin devices to automatically import sleep and vital data. Your data is processed on-device and never leaves your iPhone. ### How can I use Peaks to improve my day? You can use Peaks to schedule demanding tasks during your predicted energy peaks for maximum focus. Knowing your energy dips allows you to plan breaks or lighter activities, preventing burnout. The app also provides insights into sleep timing and debt, helping you optimize your sleep hygiene. ## Version history (last 5 releases) ### 2026.2.3 — 2026-04-15 Shift your sleep schedule, gently. This update introduces Guided Sleep Plan, a new way to move toward the sleep schedule you actually want to keep. Set a wake-up goal, and Peaks helps you shift toward it gradually over time instead of forcing a sudden change. For example, if you usually wake up at 8:30 but want to get to 7:00, Peaks can guide you there step by step with a plan that feels more realistic and sustainable. Peaks can now also send morning alarms, so your sleep plan does not stop at recommendations. It can help you wake up at the right time too. Schedules are more flexible now as well. If you prefer not to use Guided mode, you can now set a different schedule for each day of the week. We also added Social Jet Lag to Insights as part of your Regularity Score, so you can see how much your wake time shifts across the week and build a more consistent rhythm over time. And we expanded Optimal Times with many more moments to guide your day, including melatonin, strength training, and the best time for morning caffeine. Thanks for being here. ~ Flo & Clemens ### 2026.2.2 — 2026-04-03 Shift your sleep schedule, gently. This update introduces Guided Sleep Plan, a new way to move toward the sleep schedule you actually want to keep. Set a wake-up goal, and Peaks helps you shift toward it gradually over time instead of forcing a sudden change. For example, if you usually wake up at 8:30 but want to get to 7:00, Peaks can guide you there step by step with a plan that feels more realistic and sustainable. Peaks can now also send morning alarms, so your sleep plan does not stop at recommendations. It can help you wake up at the right time too. Schedules are more flexible now as well. If you prefer not to use Guided mode, you can now set a different schedule for each day of the week. We also added Social Jet Lag to Insights as part of your Regularity Score, so you can see how much your wake time shifts across the week and build a more consistent rhythm over time. And we expanded Optimal Times with many more moments to guide your day, including melatonin, strength training, and the best time for morning caffeine. Thanks for being here. ~ Flo & Clemens ### 2026.2.1 — 2026-03-26 Shift your sleep schedule, gently. This update introduces Guided Sleep Plan, a new way to move toward the sleep schedule you actually want to keep. Set a wake-up goal, and Peaks helps you shift toward it gradually over time instead of forcing a sudden change. For example, if you usually wake up at 8:30 but want to get to 7:00, Peaks can guide you there step by step with a plan that feels more realistic and sustainable. Peaks can now also send morning alarms, so your sleep plan does not stop at recommendations. It can help you wake up at the right time too. Schedules are more flexible now as well. If you prefer not to use Guided mode, you can now set a different schedule for each day of the week. We also added Social Jet Lag to Insights as part of your Regularity Score, so you can see how much your wake time shifts across the week and build a more consistent rhythm over time. And we expanded Optimal Times with many more moments to guide your day, including melatonin, strength training, and the best time for morning caffeine. Thanks for being here. ~ Flo & Clemens ### 2026.2 — 2026-03-23 Shift your sleep schedule, gently. This update introduces Guided Sleep Plan, a new way to move toward the sleep schedule you actually want to keep. Set a wake-up goal, and Peaks helps you shift toward it gradually over time instead of forcing a sudden change. For example, if you usually wake up at 8:30 but want to get to 7:00, Peaks can guide you there step by step with a plan that feels more realistic and sustainable. Peaks can now also send morning alarms, so your sleep plan does not stop at recommendations. It can help you wake up at the right time too. Schedules are more flexible now as well. If you prefer not to use Guided mode, you can now set a different schedule for each day of the week. We also added Social Jet Lag to Insights as part of your Regularity Score, so you can see how much your wake time shifts across the week and build a more consistent rhythm over time. And we expanded Optimal Times with many more moments to guide your day, including melatonin, strength training, and the best time for morning caffeine. Thanks for being here. ~ Flo & Clemens ### 2026.1.1 — 2026-02-20 Under-the-hood improvements and bug fixes to make Peaks more reliable. If you're new here, you'll also notice a refreshed setup experience. ## Apps similar to Peaks | App | Rating | Price | Category | | --- | --- | --- | --- | | [Stronger - Gym Workout Planner](https://appshunter.io/ios/app/stronger-gym-workout-planner/id1621719397) | 4.8 (17,180) | Free | Health & Fitness | | [Fitbod: Gym & Fitness Planner](https://appshunter.io/ios/app/fitbod-gym-and-fitness-planner/id1041517543) | 4.8 (281,983) | Free | Health & Fitness | | [Pillow: Sleep Tracker](https://appshunter.io/ios/app/pillow-sleep-tracker/id878691772) | 4.4 (95,615) | Free | Health & Fitness | | [Sleepzy - Sleep Cycle Tracker](https://appshunter.io/ios/app/sleepzy-sleep-cycle-tracker/id1064910141) | 4.3 (22,380) | Free | Health & Fitness | | [SleepScore by Sleep.ai](https://appshunter.io/ios/app/sleepscore-by-sleepai/id1364781299) | 4.4 (7,489) | Free | Health & Fitness | | [Sleep++](https://appshunter.io/ios/app/sleep-plus-plus/id1038440371) | 4.1 (5,651) | Free | Health & Fitness | ## More apps by Vogelhaus Apps GmbH - [Macaw: Budget & Save Money](https://appshunter.io/ios/app/macaw-budget-and-save-money/id1563696035) - [Whistle: AI Workout Planner](https://appshunter.io/ios/app/whistle-ai-workout-planner/id6739144449) All apps by Vogelhaus Apps GmbH: https://appshunter.io/developer/1563696067 ## Related topics [energy level tracker](https://appshunter.io/ios/topics/energy-level-tracker) · [vogal](https://appshunter.io/ios/topics/vogal) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*