Zone Gains
Fitness Tracker
Only for iPhone
$3.99 · Designed for iPhone. Not verified for macOS.
iPhone
One-time purchase, no subscriptions. Connect any Bluetooth HR monitor and train smarter with real-time zones, intervals, and analytics.
**One-time purchase. No subscriptions. No ads. No in-app purchases. Ever.**
Zone Gains is a premium heart rate zone training app designed for athletes and fitness enthusiasts who want to train smarter, not harder. Buy once and own it forever.
**WHY ZONE GAINS?**
Unlike free apps cluttered with ads or subscription-based alternatives that cost £50+/year, Zone Gains offers a complete heart rate training solution for a single, affordable price. Your data stays on your device – we don't collect or sell your information.
**SUPPORTED DEVICES**
Zone Gains works with a wide range of Bluetooth Fitness Trackers, devices that supports the standard Bluetooth Heart Rate Service will work.
** IMPORTANT - APPLE WATCHES NOT SUPPORTED**
Apple Watches are not currently supported. Coming Soon.
**HOW TO CONNECT**
Getting started is simple:
1. Turn on your Bluetooth Fitness Tracker
2. Open Zone Gains and tap "Find Devices"
3. Select your device from the list – that's it!
**TROUBLE CONNECTING**
Some devices can only connect to one app, disconnect from other apps and try again.
**REAL-TIME HEART RATE ZONES**
Instantly see which training zone you're in. Zone Gains uses scientifically-proven heart rate zone methodology to help you train at the right intensity – whether that's burning fat in Zone 2, building aerobic endurance in Zone 3, or pushing your anaerobic limits in Zone 4-5.
**LIVE WORKOUT TRACKING**
A beautiful, glanceable display shows your current heart rate, zone, and key stats updating in real-time. The color-coded zone graph lets you visualise your entire workout intensity at a glance.
**PERSONALISED TO YOU**
Your zones are calculated using your personal metrics – age, weight, resting heart rate, and max heart rate. Choose between the Karvonen formula (heart rate reserve) or percentage of max HR method for zone calculation.
**ZONE WORKOUT MODE**
Guarantee you spend exactly the prescribed time IN your target zone:
• Timer only counts when you're in the target zone
• Perfect for Zone 2 aerobic base building and threshold training
• Preset workouts for Zones 2-5 with warmup/cooldown phases
• Track zone entries, longest streak, and compliance percentage
**BUILT-IN INTERVAL TRAINING**
Take your fitness to the next level with structured interval workouts:
• Preset programs: Tabata, HIIT, Tempo runs, Endurance builders
• Custom workout builder: Create your own intervals with target zones
• Audio and haptic cues guide you through each phase
• Track compliance to see if you hit your target zones
**COMPLETE WORKOUT HISTORY**
Every workout is saved with detailed analytics – heart rate graphs, zone time breakdowns, calories burned, and performance trends. See your progress over weeks and months.
**DASHBOARD INSIGHTS**
Your weekly training summary shows workouts completed, total training time, calories burned, zone distribution, and workout streaks. Stay motivated with clear progress tracking.
**APPLE HEALTH SYNC**
Export workouts to Apple Health and import your resting heart rate for more accurate zone calculations.
**MEDICAL DISCLAIMER:**
IMPORTANT: Zone Gains is not a medical device or app.
• The App is designed for fitness and wellness purposes only
• Heart rate data and calculations are estimates and may not be accurate
• Do not use this App to diagnose, treat, or prevent any medical condition
• Always consult a qualified healthcare professional before starting any exercise program
• If you experience chest pain, dizziness, or other symptoms during exercise, stop immediately and seek medical attention
• The calorie calculations are estimates based on general formulas and may vary from actual energy expenditure
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Version 1.0.1 - 2026-06-24
Fixed
- Background audio (music and podcasts) no longer pauses when a workout starts.
Voice announcements now mix with other audio instead of ducking it, which was causing apps like Spotify to stop playback entirely.
Added
- In-app diagnostic **Logs** screen (Settings → Support → Logs) for troubleshooting on-device, with copy-to-clipboard and clear actions.
- End-to-end logging of the Apple Health workout export, including the native HealthKit save trace, to diagnose why a post-workout export may not appear in Apple Health.
The developer, Ian Hulme, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ian Hulme
- Size
- 22.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Designed 2 Use
