Frontier X vs BpExtract
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Frontier X
Track your heart health and exercise performance with a smart chest strap monitor. Gain detailed insights into heart rate, rhythms, and training load. Receive personalized feedback and alerts to optimize your workouts and understand your body better.
- Heart Health Monitoring
- Real-time Heart Rate & HRV
- Breathing Rate & Strain Tracking
- Activity Recording (24hrs)
- Personalized Vibration Alerts
- AI-enabled Training Insights
- Metabolic Profile Analytics (Premium)
Read full descriptionHide full description
With your Frontier X/X2/X3, 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/X3 - a revolutionary chest strap wearable smart heart monitor and view your recorded data. Trusted by world-class athletes across the globe, the Frontier X2/X3 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.
BpExtract
Easily extract and share blood pressure readings from your Hilo bracelet. Upload data to Apple HealthKit or export to CSV for comprehensive health tracking and data ownership.
- Extract Hilo bracelet data
- Upload to Apple HealthKit
- Export to CSV
- Share via Email/Message/AirDrop
- Take control of your data
Read full descriptionHide full description
Unlock the full potential of your Hilo bracelet (formerly Aktiia) with BpExtract. Seamlessly extract and export your blood pressure readings exactly how you want them. Sync directly to Apple Health, export to CSV, or share via Email, Messages, or AirDrop. Your health data belongs to you—take full ownership and use it on your terms. No subscriptions. No hidden fees. Just straightforward, powerful access to your data so you can make informed health decisions. Important: BpExtract requires a purchased Hilo bracelet and the official Hilo app to function. We are not affiliated with, endorsed by, or connected to Hilo or Aktiia in any way.
Screenshots
Verdict
The clearest difference is price: Frontier X at Free against BpExtract's $9.99. Frontier X also leads on rating (4.6 vs 2.2) and review sentiment (82% vs 47%). BpExtract's advantage is in-app purchases (none vs 2) and chart position (#101 vs unranked). On update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Frontier X is free to download; BpExtract costs $9.99 up front. Frontier X sells 2 in-app purchases, starting at $14.99 per month. BpExtract asks for nothing beyond the download.
Frontier X holds the better App Store score, 4.6 against 2.2. That said, the two scores are not equally well evidenced: Frontier X has 318 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 82% of Frontier X's written reviews are positive against 47% of BpExtract's.
Frontier X ships an update every 3 weeks, BpExtract every 2 weeks. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.
| Parameter | Frontier X | BpExtract |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 4.6 (318 ratings) — better | 2.2 (13 ratings) |
| Positive reviews | 81.8% of reviews — better | 47.1% of reviews |
| Number of ratings | 318 — better | 13 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | — | #101 — better |
| Devices | iPhone, Apple Watch | iPhone, iPad, Mac — better |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 569 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Fourthfrontier | 4puretech Ltd |
Customer experience
Frontier X
BpExtract
User reviews
Frontier X
From 318 App Store ratingsWhat we love
- 🚀 Amazing device
- 👍 Great HR data and insight
- 👍 Helpful in gaining more data
- 👍 Fantastic concept with excellent execution
- 👍 Loads of useful information
Room to improve
- 🐛 Worse and worse as time goes by
- 🐛 ECG doesn't work
- 🐛 Chest strap issues, device keeps popping out
- 🐛 Paywalled functionality
- 🐛 Syncing issues, device keeps disconnecting
BpExtract
From 13 App Store ratingsWhat we love
- 👍 Improves Aktiia/Hilo user experience
- 💡 Solves Hilo's Apple Health sync limitation
- 🚀 Quick data export to CSV/Apple Health
- ✅ Works with updated Hilo formats
- 💰 Worth the price for functionality
Room to improve
- 🐛 Inconsistent data scanning (half readings)
- 🐛 Fails to scan complete data sets
- 🐛 Conversion fails with zero heart rate
- 🐛 Data shift issues (systolic/diastolic/HR)
- ❌ No automatic sync to Apple Health
Bugs and requests
Frontier X
Reported bugs
4 issues- ECG stopped working
- Inaccurate breathing rate and other metrics
- Inability to edit activity details for indoor workouts
- Syncing issues with Garmin devices after firmware updates
Requested features
6 requests- Add interval markers
- Improve integration with Apple Fitness/Fitness+
- Add support for ANT+
- Improve compatibility with other fitness apps and devices
- Add more customization options for workouts
Show 1 moreShow fewer
- Improve data visualization and analysis tools
BpExtract
Reported bugs
15 issues- Data is not fully scanned
- Conversion fails
- Sometimes diastolic bp considered as systolic, and hr as diastolic
- Anomaly detection results in data loss
- Empty screen, no data extracted
Show 10 moreShow fewer
- App does not work with US export of Hilo
- Only export model is copy to clipboard
- Scanning only reads the left side of the report
- Import ignores half the readings
- No import of reports in German
- App does not function in iOS 18
- No connection with device
- Does not work on iPhone 12 Pro
- Data was not found in scanned document
- App does not seem to work with the US export of Hilo Core data
Requested features
8 requests- Reset settings to default
- Automatic sync to Apple Health
- Import heart rate data
- Support for German reports
- Improve support/manual page
Show 3 moreShow fewer
- Add a 'reset settings' button
- Direct API integration (like Sonar)
- Support for iOS 18
In-app purchases
Frontier X
- Monthly7 Days trial$14.991 Month
- Yearly7 Days trial$119.991 Year
BpExtract
No in-app purchases









