# Rhythm SYNC. vs PulsePacer

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.

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.

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.

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.

## The numbers

| Metric | Rhythm SYNC. | PulsePacer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (128 ratings)](https://appshunter.io/ios/app/rhythm-sync/id1226606963/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pulsepacer/id6737455301/reviews)** |
| Number of ratings | **128** | 2 |
| Positive reviews | 13.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 47 MB | 10 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Scosche](https://appshunter.io/developer/340018842) | [Andreas Scherman](https://appshunter.io/developer/1557514574) |

## What reviewers say

### Rhythm SYNC.

[App page](https://appshunter.io/ios/app/rhythm-sync/id1226606963)

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

**In-app purchases:** none

**What reviewers like**

- ✅ 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)

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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

**Requested features**

- 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


### PulsePacer

[App page](https://appshunter.io/ios/app/pulsepacer/id6737455301)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PulsePacer Premium | $9.99 | per year |
| PulsePacer Plus | $9.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*