FITIV Pulse vs Rhythm SYNC.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FITIV Pulse
This app is a comprehensive health and fitness tracker that monitors workouts, heart rate, sleep, and recovery. It provides actionable insights to help users train smarter and achieve their fitness goals.
- Heart rate zone training
- HRV and recovery tracking
- Sleep monitoring
- Workout tracking for various activities
- Strength training log
- Advanced performance metrics
Read full descriptionHide full description
TRAIN. RECOVER. ACHIEVE. FITIV is the all-in-one workout and health tracker that helps you train smarter with heart rate zones, HRV, sleep, recovery, strength, and GLP-1 weight tracking. Track workouts, heart rate, calories, recovery, sleep, stress, training load, and strength training in one powerful performance app for Apple Watch, Bluetooth heart rate monitors, Fitbit Air, Garmin watches, WHOOP, Oura, AirPods Pro (3rd generation), and Powerbeats Pro 2. HEART RATE MONITOR & ZONE TRAINING Train with precision using real-time heart rate tracking, heart rate zones, and live workout feedback. • Live heart rate monitoring during workouts • Heart rate zone tracking for cardio, endurance, and interval training • HRV tracking and resting heart rate insights • Track live heart rate with supported AirPods Pro (3rd generation) and Powerbeats Pro 2 • Support for Bluetooth heart rate monitors, including the Fitbit Air • Broadcast heart rate to Peloton, Zwift, Concept2, and compatible gym equipment • Live coaching with real-time voice feedback during workouts WEIGHT & GLP-1 MEDICATION TRACKING Lose the weight, not the muscle. Experts recommend strength training while on GLP-1 medications, and FITIV is built to track both. • Log doses for Zepbound, Mounjaro, Tirzepatide, Ozempic, Wegovy, Semaglutide and pills like Rybelsus, oral Wegovy, and Foundayo • Dose reminders, titration schedules, and estimated medication levels • Daily side effect check-ins to spot patterns • Weight trend and goals, with progress per medication RECOVERY, SLEEP & READINESS Recovery drives performance. FITIV helps you understand when to push and when to recover. • Sleep tracking with overnight metrics and vitals • HRV tracking and recovery insights • Stress tracking and daily strain monitoring • Training readiness, recovery score, and recovery trends • Training load balanced with recovery WORKOUT TRACKING FOR EVERY WAY YOU TRAIN Track your workouts in one app, whether you train for health, fitness, performance, or weight loss. • Workout tracking for cardio, gym, intervals, and endurance sessions • HIIT timer and interval workout support • GPS workout maps with pace and heart rate overlays • Advanced workout metrics, including training load and VO2 • Live streaming workout data from Apple Watch to iPhone STRENGTH TRAINING & GYM LOG Track your lifting alongside your recovery and performance data. • Log reps, sets, weight, and training volume • Track personal records and strength progress • Monitor progressive overload trends • Build structured gym workouts • Track barbell, dumbbell, machine, and bodyweight exercises ADVANCED PERFORMANCE & HEALTH METRICS • Training load tracking with TRIMP, TSS, and active calorie-based load • Advanced running metrics, including stride length, running power, and vertical oscillation • Overnight vitals and in-depth sleep tracking • Health metrics dashboard for heart rate, sleep, stress, recovery, and more COMPATIBLE DEVICES & INTEGRATIONS • Apple Watch and iPhone • Garmin watches • Bluetooth heart rate monitors, including Fitbit Air, Polar, Scosche, COOSPO, Myzone, and more • AirPods Pro (3rd generation) and Powerbeats Pro 2 • WHOOP, Oura, and other connected fitness platforms • MyFitnessPal, Strava, TrainingPeaks, Lose It!, Peloton, Zwift, and Spotify • Support for widgets, complications, Live Activities, and Dynamic Island Upgrade to FITIV Pro to unlock advanced recovery analytics, training readiness, deeper metrics, and structured workout features. SUBSCRIPTION & TERMS FITIV Pro offers monthly and yearly auto-renewing subscriptions, charged to your Apple ID. Cancel anytime in your Apple ID settings at least 24 hours before renewal. Terms of Service: https://fitiv.com/terms-conditions Privacy Policy: https://fitiv.com/privacy-policy
Rhythm SYNC.
This app connects to heart rate monitors to display real-time data, manage activity modes, and track workout history. It allows for software updates and integrates with HealthKit for saving workout data.
- Connects to Rhythm 24 and Rhythm+ monitors
- Manages activity modes and biometrics
- Displays heart rate and battery level
- Configures data sharing with other apps
- Collects and downloads recorded activities
- Performs software and firmware updates
- HealthKit integration
Read full descriptionHide full description
The award-winning Rhythm Heart Rate Monitors use patented technology to capture exceptionally accurate performance in both wet and dry conditions. This Scosche Rhythm Sync app: · Connects to Rhythm 24 and Rhythm+ Heart Rate Monitors · Manages Rhythm 24 activity modes and biometrics functionality: Heart Rate Only, Running, Cycling, Swimming, Heart Rate Variability, Duathlon, and Triathlon · Displays heart rate data from your Rhythm Monitors · Displays Rhythm battery level · Configures sharing with compatible heart rate tracking apps, fitness watches, bike computers, and fitness equipment, to stream your fitness-data in real time, track heart rate history, and more! · Collects Rhythm 24 recorded activities and has download capabilities · Allows for Rhythm Heart Rate Monitors software and firmware updates · HealthKit integration which allows you save workout data recorded on the sensor.
Screenshots
Verdict
The clearest difference is review sentiment: FITIV Pulse at 76% against Rhythm SYNC.'s 13%. FITIV Pulse also leads on rating (4.6 vs 1.8) and ratings volume (13K vs 128). Rhythm SYNC.'s advantage is in-app purchases (none vs 10) and iOS requirement (12.0 vs 17.0). On price, 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
Both are free to download. FITIV Pulse sells 9 in-app purchases, starting at $1.99 per month. Rhythm SYNC. asks for nothing beyond the download.
FITIV Pulse holds the better App Store score, 4.6 against 1.8. That said, the two scores are not equally well evidenced: FITIV Pulse has 13K ratings behind it against 128, so its average is the more settled of the two. Written reviews point the same way: 76% of FITIV Pulse's written reviews are positive against 13% of Rhythm SYNC.'s.
FITIV Pulse ships an update fortnightly, Rhythm SYNC. every 3 months. The most recent releases landed on September 25, 2026 and September 3, 2026 respectively.
| Parameter | FITIV Pulse | Rhythm SYNC. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (13K ratings) — better | 1.8 (128 ratings) |
| Positive reviews | 75.5% of reviews — better | 13.1% of reviews |
| Number of ratings | 13K — better | 128 |
| Update frequency | Fortnightly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 466 MB | 47 MB |
| Age rating | 12+ | 4+ |
| Developer | MotiFIT Fitness Inc. | Scosche |
Customer experience
FITIV Pulse
Rhythm SYNC.
User reviews
FITIV Pulse
From 13K App Store ratingsWhat we love
- 🚀 Awesome app!
- 👍 Great tool for tracking levels of exertion during training
- 👍 Keeps you motivated and able to track progress easily
- 👍 Flawless Apple Watch integration
- 👍 Comprehensive metrics and data analysis
Room to improve
- 🐛 Frequent disconnects from Apple Watch
- 🐛 Inaccurate calorie tracking
- 🐛 Buggy GPS tracking and mapping
- 🐛 Inconsistent syncing and data loss issues
- 🐛 Intrusive and frequent review prompts
Rhythm SYNC.
From 128 App Store ratingsWhat we love
- ✅ Accurate heart rate readings
- 🔋 Long-lasting device battery life
- 🔄 Reliable device hardware
- 📱 Simple and straightforward interface
- 🔗 Works well with third-party apps (Peloton, Garmin, Apple Watch)
Room to improve
- 🐛 Frequent Bluetooth connection failures
- 🐛 App crashes and freezes regularly
- ❌ App doesn't recognize connected devices
- ⚠️ HRV mode difficult or impossible to access
- 📊 Extremely limited app functionality
Bugs and requests
FITIV Pulse
Reported bugs
5 issues- Frequent disconnects from Apple Watch during workouts
- Inaccurate calorie tracking and data reporting
- Issues with GPS tracking and mapping, including incorrect distance and route recording
- Syncing problems leading to data loss and inconsistencies
- Crashes and performance issues following recent app updates
Requested features
8 requests- Add support for more workout types (e.g. rowing, CrossFit)
- Improve customization options for workouts and data displays
- Implement a more robust and reliable GPS tracking system
- Add the ability to edit workout details and duration
- Improve syncing and data integration with other fitness apps
Show 3 moreShow fewer
- Provide more detailed sleep and recovery tracking
- Implement a more intuitive and streamlined user interface
- Reduce the frequency and intrusiveness of review prompts
Rhythm SYNC.
Reported bugs
17 issues- App fails to detect device despite Bluetooth connection
- Bluetooth connection drops frequently during workouts
- App crashes on startup (splash screen freeze)
- Firmware update fails repeatedly
- HRV readings not displaying or accessible
Show 12 moreShow fewer
- Custom heart rate zones not applied to recordings
- Battery level shows as zero or incorrect
- Settings menu items non-functional or unresponsive
- App loses connection when device syncs with other apps
- Data disappears when monitor disconnects
- Export to CSV ignores custom zones
- App crashes when attempting to share workout data
- Last mode setting not remembered between sessions
- Unable to modify personal details (height, weight, birthday)
- Incompatibility with iPhone X and newer models
- Firmware update window won't open
- App incompatible with iOS 11 and newer versions
Requested features
12 requests- HRV (Heart Rate Variability) mode that actually works
- Comprehensive workout history and logging
- Data export to multiple health apps (MyFitnessPal, TrainingPeaks, etc.)
- Customizable heart rate zones that persist
- Batch download and export of multiple files
Show 7 moreShow fewer
- Auto-sync feature when device is detected
- Detailed analytics and charts
- Better user profile settings (height, weight, age)
- Dark mode option
- Improved troubleshooting and help documentation
- Ability to delete saved connections to health apps
- Support for multiple languages in documentation
In-app purchases
FITIV Pulse
- FITIV (1 Month)$1.991 Month
- FITIV$4.991 Month
- FITIV2 variants$9.991 Year
Show 4 moreShow fewer
- FITIV Pro Monthly$9.991 Month
- FITIV7 Days trial$29.991 Year
- FITIV1 Year trial$29.991 Year
- FITIV Pro Yearly7 Days trial$59.991 Year
- PRO Membership$4.99
- PRO Membership$9.99
Rhythm SYNC.
No in-app purchases








