# iSmoothRun vs heartbeatz Connect

The clearest difference is price: heartbeatz Connect at Free against iSmoothRun's $4.99. iSmoothRun's advantage is review sentiment (70% vs 32%) and chart position (#75 vs unranked). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

heartbeatz Connect is free to download; iSmoothRun costs $4.99 up front. iSmoothRun sells 2 in-app purchases, starting at $4.99 per month and heartbeatz Connect sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

iSmoothRun ships an update every 2 months, heartbeatz Connect every 3 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | iSmoothRun | heartbeatz Connect |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.4 (943 ratings)](https://appshunter.io/ios/app/ismoothrun/id410965399/reviews)** | — |
| Number of ratings | **943** | — |
| Positive reviews | **70.1% of reviews** | 32.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | **#75** | — |
| Size | 31 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Lake Horizon Ltd](https://appshunter.io/developer/410965402) | [North Pole Engineering Inc](https://appshunter.io/developer/424774346) |

## What reviewers say

### iSmoothRun

[App page](https://appshunter.io/ios/app/ismoothrun/id410965399)

**Currently charting:** #75 Top Paid · Health & Fitness (US App Store)

This app tracks and logs various fitness activities like running, walking, and cycling with extensive sensor support. It offers advanced training features, workout planning, and seamless integration with popular fitness platforms and HealthKit.

**Highlights:** Activity tracking (running, walking, cycling), Advanced sensor support (HRM, stride, power), Running Power training, Workout editor and planner, TrainingPeaks/Final Surge sync, HealthKit integration, Data export (GPX, TCX, KML, PWX, CSV)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Subscription | $4.99 | per month |
| Annual Pro Subscription | $24.99 | per year |

**What reviewers like**

- 💻 Excellent app for running, biking, and other activities
- 🎨 Highly customizable with great features
- 🔗 Seamless integration with various platforms and devices
- 🕰️ Reliable and accurate tracking
- 🏃‍♀️ Fantastic for interval training and coaching

**What reviewers complain about**

- 🐛 Frequent crashes and bugs, especially with recent updates
- 🔋 High battery drain, especially on Apple Watch
- 🔍 Inconsistent distance and pace tracking
- 🤖 Poor integration with some platforms like Garmin and Strava
- 🤔 Confusing and outdated user interface

**Reported bugs**

- Frequent app crashes, especially when starting a workout
- Inconsistent distance and pace tracking, especially on treadmill
- Issues with syncing data between iPhone and Apple Watch
- Problems with audio cues and notifications not working as expected

**Requested features**

- Improved Apple Watch app with standalone functionality
- Better integration with popular fitness platforms
- More customization options for data fields and audio cues
- Ability to import and sync workouts from other sources
- Improved battery life optimization


### heartbeatz Connect

[App page](https://appshunter.io/ios/app/heartbeatz-connect/id1485336131)

This app enables your Apple Watch to broadcast heart rate data to various BLE/ANT+/Polar receivers like Peloton bikes and Garmin devices. It allows seamless integration of your watch's heart rate into your workouts on compatible fitness equipment.

**Highlights:** Broadcasts Apple Watch heart rate, Connects to BLE/ANT+/Polar receivers, Works with Peloton, Garmin, and treadmills, Real-time heart rate display, Integrates with Apple Health for workouts

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $9.99 | per year |
| heartbeatz Pro Unlimited | $19.99 | one-time |

**What reviewers like**

- 👍 Works with Garmin/Zwift
- 👍 Connects Apple Watch HR
- 👍 Cost-effective alternative
- 👍 Responsive support (sometimes)
- 👍 Good for specific use cases

**What reviewers complain about**

- 🐛 Frequent crashes/freezing
- 🐛 Duplicate workouts logged
- 🐛 Connection issues
- 🐛 Battery drain on watch
- 🐛 Permissions issues

**Reported bugs**

- App crashes in the middle of workout
- App asks for Apple Health permissions repeatedly
- Duplicate workouts created in Apple Fitness
- App on watch is laggy and buttons don't work
- Watch app asks for Apple Health permissions twice on start

**Requested features**

- Add workout type options (rowing, biking, running)
- Add Apple Watch complication
- Allow disabling writing to Health app
- Make screens configurable
- Simultaneous button press for pause


## Frequently asked questions

### Is iSmoothRun free?

iSmoothRun costs $4.99, and also offers in-app purchases.

### Is heartbeatz Connect free?

heartbeatz Connect is free to download, with in-app purchases available.

### Do iSmoothRun or heartbeatz Connect have ads?

Neither iSmoothRun nor heartbeatz Connect shows ads.

### Which is updated more often, iSmoothRun or heartbeatz Connect?

iSmoothRun ships an update every 2 months, and heartbeatz Connect every 3 months. Most recently, iSmoothRun was updated on November 1, 2026 and heartbeatz Connect on October 29, 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.*