Comparison

Rhythm SYNC. vs PulsePacer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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 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.

About

PulsePacer

This running companion helps you stay in your target heart rate zones during workouts. It connects to Bluetooth heart rate monitors and provides audio cues when you drift out of zone, keeping you focused on your pace without distractions.

Highlights
  • Bluetooth heart rate monitor integration
  • Audio cues for heart rate zones
  • Focus on pace and rhythm
  • Simple setup process
  • On-device data processing
  • Privacy-focused design
Features
Read full description

Ever find yourself glued to your screen during a run, obsessively checking your heart rate instead of focusing on your pace? PulsePacer fixes that. It’s the running companion that takes the guesswork out of heart rate zone training. No more distractions, no more breaking your rhythm. Here’s how it works: PulsePacer connects to your Bluetooth heart rate monitor (think Wahoo TICKR, Polar H10, Garmin HRM Dual, and more) and keeps track of your heart rate zones for you. When you slip out of your target zone, it gives you a quick audio nudge—right over your music, without drowning it out. The app is as straightforward as it gets: 1. Set your max heart rate. 2. Sync your heart rate monitor. 3. Start running. That’s it. Everything is processed right on your iPhone, so your data stays private, and the app stays fast. With its clean, no-frills design, PulsePacer won’t bog you down with extras you don’t need—it’s built to keep you focused on your run and nothing else. Whether you’re mastering Zone 2 endurance or pushing through interval sessions, PulsePacer keeps you in control, all without pulling you out of the moment. Available now for iOS 16.0 and up. Download it today from the App Store, and let PulsePacer take care of the zones while you take care of the miles. Privacy Policy: https://pulsepacer.com/privacy-policy EULA: https://pulsepacer.com/terms-of-use

Screenshots

Rhythm SYNC.4 screens
PulsePacer3 screens

Verdict

The call

The clearest difference is review sentiment: PulsePacer at 100% against Rhythm SYNC.'s 13%. PulsePacer also leads on rating (5.0 vs 1.8). Rhythm SYNC.'s advantage is in-app purchases (none vs 2) and ratings volume (128 vs 2). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PulsePacer sells 2 in-app purchases, starting at $9.99 per year. Rhythm SYNC. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PulsePacer holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: Rhythm SYNC. has 128 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 13% of Rhythm SYNC.'s written reviews are positive against 100% of PulsePacer's.

UpkeepUpdate frequency

Rhythm SYNC. ships an update every 3 months, PulsePacer every 2 months. The most recent releases landed on October 2, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 4 level
Rhythm SYNC. versus PulsePacer: the parameters behind the verdict, then further details
ParameterRhythm SYNC.PulsePacer
PriceFreeFree
Rating1.8 (128 ratings)5.0 (2 ratings) — better
Positive reviews13.1% of reviews100.0% of reviews — better
Number of ratings128 — better2
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size47 MB10 MB
Age rating4+4+
DeveloperScoscheAndreas Scherman

Customer experience

Rhythm SYNC.

All ratings128 ratings
Positive16.4%
Neutral1.6%
Negative82.0%
Written reviews99 reviews
Positive13.1%
Neutral1.0%
Negative85.9%

PulsePacer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

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 more
  • 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 more
  • 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

PulsePacer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Rhythm SYNC.

No in-app purchases

2 purchases

PulsePacer

Subscriptions1
  • PulsePacer Premium$9.991 Year
One-time1
  • PulsePacer Plus$9.99

Questions

Is Rhythm SYNC. free?
Rhythm SYNC. is free to download, with no in-app purchases.
Is PulsePacer free?
PulsePacer is free to download, with in-app purchases available.
Which has better reviews, Rhythm SYNC. or PulsePacer?
PulsePacer is rated higher. Rhythm SYNC. averages 1.8 out of 5 from 128 ratings, while PulsePacer averages 5.0 from 2 ratings.
Do Rhythm SYNC. or PulsePacer have ads?
Neither Rhythm SYNC. nor PulsePacer shows ads.
Which is updated more often, Rhythm SYNC. or PulsePacer?
Rhythm SYNC. ships an update every 3 months, and PulsePacer every 2 months. Most recently, Rhythm SYNC. was updated on October 2, 2026 and PulsePacer on September 23, 2026.

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