# Energy Tracker - Peak Score — HRV, Vitals & Body Monitor > Daily training readiness score and AI coaching based on Apple Watch data. (iPhone/iPad app by Jan Slaby.) - Source: https://appshunter.io/ios/app/energy-tracker-peak-score/id6749524670 (this page in markdown: same URL + `.md`) - Developer: [Jan Slaby](https://appshunter.io/developer/1830932776) - Category: Health & Fitness, Sports - Price: Free with in-app purchases - Rating: 3.30/5 from 3 App Store ratings - Age rating: 17+ - Requires: iOS 26.0 · 41 MB - Languages: American English - Released: 2025-08-19 - Data updated: 2026-09-23 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/energy-tracker-peak-score/id6749524670/reviews.md ## What is Energy Tracker? Peak Score: Training Readiness for Athletes Peak Score is a training readiness app for athletes who use Apple Watch. It combines sleep quality, Recovery & Vitals, and Training Load into one daily Training Readiness score, so you can decide whether to Rest, Keep Easy, or Push Hard. Instead of leaving you to interpret separate charts and metrics, Peak Score turns your Apple Health data into clear guidance for today and a view of how tomorrow is shaping up. What Is Peak Score? Peak Score helps you understand how recovered your body is and what your current training data means. Each day, it analyzes your sleep quality, Recovery & Vitals, and recent Training Load on your iPhone. You get one Training Readiness score from 0-100 with a clear recommendation: Rest, Keep Easy, or Push Hard. Key Features - Training Readiness — See one daily score built from sleep quality, Recovery & Vitals, and Training Load. Use it to decide how hard to train today. - AI Coach — Turn your Training Readiness, sleep, Heart Rate Variability (HRV), and Training Load into specific daily guidance. AI Coach uses Apple Intelligence on your iPhone when available and enabled. - Training Load — Understand whether you are doing too little, training within your current capacity, or doing too much. Peak Score compares your 7-day Training Load with a 28-day baseline using the Acute:Chronic Workload Ratio (ACWR). - Recovery & Vitals — Review Heart Rate Variability (HRV), Resting Heart Rate (RHR), respiratory rate, personal typical ranges, and trends without having to interpret isolated numbers. - Workout Analysis — Explore Heart Rate Zones from Z1-Z5, Cardio Focus, Training Load for each workout, and workout trends. - 7-Day Training Readiness Trend — See how your Training Readiness has changed over the previous seven days and recognize whether Recovery is improving or declining. - Tomorrow's Training Readiness Prediction — See an estimate of how ready you are likely to be tomorrow based on current Recovery and Training Load data. - Apple Watch companion — Check Training Readiness, Strain, and Recovery from your wrist. Peak Score performs its analysis on iPhone and sends snapshots to Apple Watch. Who Is Peak Score For? Peak Score is built for runners, cyclists, triathletes, gym and hybrid athletes, team-sport athletes, and anyone who trains regularly with Apple Watch. It is for athletes who want a practical answer from their data, not another collection of charts to decode. How It Works 1. Allow Peak Score to read supported data from Apple Health. 2. Wear Apple Watch for workouts and overnight measurements. 3. Peak Score analyzes your data on iPhone. 4. Open Peak Score to review Training Readiness, AI Coach guidance, Recovery & Vitals, Training Load, and Workout Analysis. Privacy and Requirements - Apple Watch is required for sleep tracking, HRV, overnight heart rate, and respiratory rate. - AI Coach requires Apple Intelligence to be available and enabled on your device. - Your health and training data remain on your device and are never sold or shared. - No third-party fitness hardware or service is required. - Peak Score provides fitness and educational information, is not a medical device, and is for informational purposes only. Free and PRO The free tier includes basic Training Readiness, the today view, and limited workout data. Peak Score PRO adds trends, Cardio Focus, Heart Rate Zones, detailed workout statistics, Training Load insights, Training Readiness components, and AI Coach. Turn your Apple Watch data into clearer training decisions. Check Peak Score before your next session and know whether to Rest, Keep Easy, or Push Hard. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Daily Readiness Score - HRV Tracking - Training Load Analysis - Sleep Score Integration - 7-Day Readiness Trend - Tomorrow's Readiness Prediction - On-Device AI Coach ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | PRO Access (Monthly) | $9.99 | per month | | PRO Access (Annual) | $39.99 | per year | | PRO Access (Annual) | $29.99 | per year | | Pro Access (Weekly) | $2.99 | per 7 days | | PRO Access (Monthly) | $4.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | PRO Access (Lifetime) | $44.99 | one-time | ## Frequently asked questions about Energy Tracker ### What is Peak Score's daily readiness score? Peak Score analyzes your Apple Watch data overnight to provide a simple recommendation each morning: Rest, Easy, or Hard. This score tells you exactly what your body can handle for the day without requiring interpretation of complex charts. ### How does Peak Score use HRV? Heart rate variability (HRV) is a key input for Peak Score's readiness calculation. The app reads your HRV from your Apple Watch each night to accurately reflect how well your nervous system has recovered from training, stress, or poor sleep. ### Does Peak Score have ads? Yes, Peak Score contains advertisements. As a free application with in-app purchases, it utilizes ads to support its development and services. ### What are the subscription options for Peak Score? Peak Score offers several subscription plans, including weekly, monthly, and annual options. Some plans provide a free trial period, such as 3 or 7 days, before billing commences. ### How does the AI Coach in Peak Score work? The on-device AI Coach uses your readiness, training load, sleep, and HRV data to generate personalized training guidance. All AI processing happens directly on your iPhone and Apple Watch, ensuring your Apple Health data remains private. ### What devices does Peak Score support? Peak Score is designed to work with your Apple Watch and iPhone. It leverages data from both devices to provide comprehensive training readiness insights. ### How often is Peak Score updated? The latest version of Peak Score is 2.2.1, and it was last updated on May 3, 2026. Updates typically include new features, performance improvements, and bug fixes. ### What is the age rating for Peak Score? Peak Score has an age rating of 17+. This rating is based on the content and features available within the application. ## Version history (last 5 releases) ### 2.4.1 — 2026-09-14 This version of Peak Score includes bug fixes and usability updates. ### 2.4 — 2026-08-25 Brand New Workout Analytics Section! ### 2.3.1 — 2026-07-12 bug fixes ### 2.3 — 2026-07-04 bug fixes ### 2.2.1 — 2026-05-03 Rate App Section ## Apps similar to Energy Tracker | App | Rating | Price | Category | | --- | --- | --- | --- | | [The Outsiders Fitness Tracker](https://appshunter.io/ios/app/the-outsiders-fitness-tracker/id6751584800) | 4.6 (125) | Free | Health & Fitness | | [Vita - Health & Longevity](https://appshunter.io/ios/app/vita-health-and-longevity/id6756969020) | 4.0 (4) | Free | Health & Fitness | | [Body Battery](https://appshunter.io/ios/app/body-battery/id6749822861) | 4.3 (23) | Free | Health & Fitness | | [Century: Health & Fitness](https://appshunter.io/ios/app/century-health-and-fitness/id6741389219) | 3.6 (37) | Free | Health & Fitness | | [Body Battery: Energy Tracker](https://appshunter.io/ios/app/body-battery-energy-tracker/id6502915310) | 4.2 (81) | Free | Health & Fitness | | [Fit Rest: Sleep & HRV Tracker](https://appshunter.io/ios/app/fit-rest-sleep-and-hrv-tracker/id6751546749) | 4.8 (121) | Free | Health & Fitness | --- *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 2026-09-23.*