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Preview 2 platforms
iPhone 9 images
Apple Watch 5 images
What’s New Version 22.1.1
• Bug Fixes and Improvement
Description
With your Frontier X/X2, track your activity including exercise, rest or sleep to get detailed insights on heart health and exercise performance. This companion app allows you to connect with Frontier X2 - a revolutionary chest strap wearable smart heart monitor and view your recorded data.
Trusted by world-class athletes across the globe, the Frontier X2 is a chest-worn Smart Heart Monitor that provides in-depth real-time feedback on your heart health.
It can monitor your:
- Heart Health
- Heart Rate
- Heart Rate Variability (HRV)
- Breathing Rate
- Strain
- Rhythms
- Training Load
- Calories
- Stress, and a lot more.
• Accurately record your activity like exercise, running, cycling, resting, sleeping, meditation, etc for up to 24hrs with comprehensive heart health insights.
• Spot changes in your heart health with Rhythm and Strain.
• Train in the right zone without distractions with real-time, personalized, and discreet vibration alerts.
• Add health event tags to help you understand how lifestyle choices and behavior affect your health.
• Seamlessly integrate with Bluetooth-enabled wearables and third-party devices such as GPS sports watches, bike computers, and more.
• AI-enabled algorithms - Receive post-activity training insights, recommendations, and weekly goals.
• Frontier X integrates with HealthKit to export your Frontier X activities into the Health app and to read heart rate and biometric data.
• IP67 Waterproof up to 1.5 M
• Battery: 14+ days of typical use
Now get deeper insights and data with Frontier Premium Subscription*:
Metabolic Profile Analytics: Track training intensity and the impact of lifestyle changes on metabolic health with key metrics like VO2 Max, VO2 Zones, Oxygen Uptake, and Ventilatory Thresholds (VTs).
VO2 Max: Get the most accurate real-time Vo2 Max data. While other wearables estimate using motion and heart rate, our advanced algorithms provides precise Vo2 Max readings outside of a lab, tracking cardiovascular efficiency and endurance potential.
Readiness Score: Determine if your body is ready for peak performance or needs recovery. Advanced algorithms use heart rate, heart rate variability (HRV) to guide your daily activities and training.
Sleep Stage Analysis: Get a comprehensive understanding of your sleep quality (Webapp).
With Frontier's Premium subscription and Metabolic Profile Analysis, tracking your VO₂ max becomes simpler and more precise.
*A Paid Frontier Premium subscription is required to access the full feature set .
The Premium feature subscription comes with a complimentary 7 days free trial, and continue at a minimal monthly cost starting from USD 14.99, or opt for an annual plan for substantial savings. Please note that prices may fluctuate based on your geographical location, currency, and current exchange rates
The Terms of use are available in the app and our website: https://in.fourthfrontier.com/pages/terms-of-use
About Fourth Frontier
Fourth Frontier is an innovative health-tech company focused on revolutionizing heart health monitoring with its cutting-edge wearable technology.
We are the World’s First Smart Heart Monitor. With over 5 billion heartbeats recorded from 120,000+ users across 50+ countries, we are empowering users to understand and manage their heart health in real-time.
These features make the Frontier App a comprehensive tool for heart health management and fitness improvement.
Download the app today and access the most accurate heart health data available.
Apps available for iPhone and Apple Watch.
In-App Purchases US pricing
Premium Plan Subscription
Monthly · Monthly 7-day free trial$14.99
Yearly · Yearly 7-day free trial$119.99
Capabilities
In-App Purchases
Accessibility
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Version history 25 versions
Build 887952196v22.1.12026-07-07 23:15:36
• Bug Fixes and Improvement
Build 887529507v22.1.02026-06-29 13:37:36
• Bug Fixes and Improvement
Build 886674539v22.0.22026-06-08 20:19:33
• Bug Fixes and Improvement
Build 885074095v22.0.12026-04-29 21:15:41
• Bug Fixes and Improvement
Build 884662583v22.0.02026-04-20 11:40:52
• Bug Fixes and Improvement
Build 884364773v21.1.12026-04-15 16:12:28
• Bug Fixes and Improvement
Build 883588590v21.1.02026-03-20 19:58:57
Upgrade to a Smarter Home Experience
We heard your feedback and here is an all new UI for a smoother experience.
Spot Patterns with the New Trends Feature
Powerful Trends feature to spot patterns across weeks and months to help you with data backed decisions.
Readiness — Reimagined
A streamlined flow with clearer guidance, and easy-to-understand results to understand your readiness for the day.
Smoother Activity Start
The Start Activity screen now offers a cleaner layout and quicker access to the right activity, helping you get moving faster.
Performance Improvements
Smashed some pesky bugs and did under-the-hood enhancements for a smoother, more reliable experience.
Build 882814875v21.0.02026-03-04 17:18:04
Upgrade to a Smarter Home Experience
We heard your feedback and here is an all new UI for a smoother experience.
Spot Patterns with the New Trends Feature
Powerful Trends feature to spot patterns across weeks and months to help you with data backed decisions.
Readiness — Reimagined
A streamlined flow with clearer guidance, and easy-to-understand results to understand your readiness for the day.
Smoother Activity Start
The Start Activity screen now offers a cleaner layout and quicker access to the right activity, helping you get moving faster.
Performance Improvements
Smashed some pesky bugs and did under-the-hood enhancements for a smoother, more reliable experience.
Build 880508398v20.2.02026-01-22 07:04:11
• Bug Fixes and Improvement.
Build 879289629v20.1.02025-11-12 02:48:36
• Bug Fixes and Improvement.
Build 878402731v20.0.12025-09-25 09:57:08
• Bug Fixes and Improvement.
Build 876470784v19.9.12025-07-17 23:37:32
• Bug Fixes and Improvement.
Build 871931555v19.92025-01-22 22:07:15
• Bug Fixes and Improvement.
Build 871818483v19.82025-01-17 10:26:45
• Bug Fixes and Improvement.
Build 871054476v19.72024-12-11 15:39:41
• Track changes in your VO2 Max and Readiness Score over time via Trends (Premium).
• Bug Fixes and Improvement.
Build 870613455v19.62024-11-22 23:53:41
• Bug Fixes and Improvement.
Build 870562324v19.52024-11-20 18:26:46
• Bug Fixes and Improvement.
Build 870291365v19.42024-11-10 05:50:39
• Improved UI Design for Graph Screen to enhance data visualization and usability.
• Bug Fixes and Improvement.
Build 869821221v19.32024-10-18 21:50:30
We’re excited to introduce 4 new premium features designed to give you deeper insights into your heart health and performance:
1. Metabolic Profile Analysis – Measure your VO2 Max, Ventilatory Threshold, and Oxygen Uptake during exercise. Analyze how your body utilizes energy during workouts and sports activities to optimize performance.
2. VO2 Max – The most accurate VO2 max tracking outside of a lab. It estimates how efficiently your body uses oxygen during a workout.
3. Readiness Score – Measure your recovery and know when your body is primed for peak performance
4. Sleep Stage Analysis – Track and understand your sleep stages, and assess sleep quality and patterns to improve your overall sleep health. (Available only on the web dashboard)
Try Frontier Premium FREE for 7 days!
Build 869732136v19.22024-10-16 10:00:24
We’re excited to introduce 4 new premium features designed to give you deeper insights into your heart health and performance:
1. Metabolic Profile Analysis – Measure your VO2 Max, Ventilatory Threshold, and Oxygen Uptake during exercise. Analyze how your body utilizes energy during workouts and sports activities to optimize performance.
2. VO2 Max – The most accurate VO2 max tracking outside of a lab. It estimates how efficiently your body uses oxygen during a workout.
3. Readiness Score – Measure your recovery and know when your body is primed for peak performance
4. Sleep Stage Analysis – Track and understand your sleep stages, and assess sleep quality and patterns to improve your overall sleep health. (Available only on the web dashboard)
Try Frontier Premium FREE for 7 days!
Build 869644630v19.12024-10-14 17:12:46
• Bug fixes and Improvements.
Build 869120952v19.02024-09-19 14:27:13
• Bug fixes and Improvements.
Build 868171251v18.92024-08-14 20:21:33
• Bug fixes and Improvements.
Build 867843415v18.82024-07-31 14:22:05
• Improvements in Apple Watch UI.
• Bug fixes and Improvements.
Build 867065503v18.72024-06-30 17:13:13
• Updates in Profile.
• Bug fixes and Improvements.
Price history by region
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| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
US | en-US | Free | 305 | 4.6 | 22.1.1 |
Change log 28 changes · US
✎
releaseNotes updated
• Bug Fixes and Improvement
✎
description updated
With your Frontier X/X2, track your activity including exercise, rest or sleep to get detailed insights on heart health and exercise performance. This companion
✎
name updated
Frontier X
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Version 22.1.1 released
• Bug Fixes and Improvement
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Version 22.1.0 released
• Bug Fixes and Improvement
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Version 22.0.2 released
• Bug Fixes and Improvement
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Version 22.0.1 released
• Bug Fixes and Improvement
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Version 22.0.0 released
• Bug Fixes and Improvement
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Version 21.1.1 released
• Bug Fixes and Improvement
◆
Version 21.1.0 released
Upgrade to a Smarter Home Experience
We heard your feedback and here is an all new UI for a smoother experience.
Spot Patterns with the New Trends Feature
Powerful Trends feature to spot patterns across weeks and months to help you with da
◆
Version 21.0.0 released
Upgrade to a Smarter Home Experience
We heard your feedback and here is an all new UI for a smoother experience.
Spot Patterns with the New Trends Feature
Powerful Trends feature to spot patterns across weeks and months to help you with da
◆
Version 20.2.0 released
• Bug Fixes and Improvement.
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Version 20.1.0 released
• Bug Fixes and Improvement.
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Version 20.0.1 released
• Bug Fixes and Improvement.
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Version 19.9.1 released
• Bug Fixes and Improvement.
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Version 19.9 released
• Bug Fixes and Improvement.
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Version 19.8 released
• Bug Fixes and Improvement.
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Version 19.7 released
• Track changes in your VO2 Max and Readiness Score over time via Trends (Premium).
• Bug Fixes and Improvement.
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Version 19.6 released
• Bug Fixes and Improvement.
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Version 19.5 released
• Bug Fixes and Improvement.
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Version 19.4 released
• Improved UI Design for Graph Screen to enhance data visualization and usability.
• Bug Fixes and Improvement.
◆
Version 19.3 released
We’re excited to introduce 4 new premium features designed to give you deeper insights into your heart health and performance:
1. Metabolic Profile Analysis – Measure your VO2 Max, Ventilatory Threshold, and Oxygen Uptake during exercise.
◆
Version 19.2 released
We’re excited to introduce 4 new premium features designed to give you deeper insights into your heart health and performance:
1. Metabolic Profile Analysis – Measure your VO2 Max, Ventilatory Threshold, and Oxygen Uptake during exercise.
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Version 19.1 released
• Bug fixes and Improvements.
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Version 19.0 released
• Bug fixes and Improvements.
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Version 18.9 released
• Bug fixes and Improvements.
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Version 18.8 released
• Improvements in Apple Watch UI.
• Bug fixes and Improvements.
◆
Version 18.7 released
• Updates in Profile.
• Bug fixes and Improvements.