# BioForce HRV vs BELLr

The clearest difference is rating: BELLr at 5.0 against BioForce HRV's 2.8. BELLr also leads on update cadence (every 3 weeks vs every 9 months). BioForce HRV's advantage is ratings volume (8 vs 1) and iOS requirement (8.0 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BELLr holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: BioForce HRV has 8 ratings behind it against 1, so its average is the more settled of the two.

BioForce HRV ships an update every 9 months, BELLr every 3 weeks. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | BioForce HRV | BELLr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (8 ratings)](https://appshunter.io/ios/app/bioforce-hrv/id490419670/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bellr/id6502907438/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 29.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 9 MB | 3 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Performance Sports Inc.](https://appshunter.io/developer/490419673) | [Matt Overholt](https://appshunter.io/developer/987037208) |

## What reviewers say

### BioForce HRV

[App page](https://appshunter.io/ios/app/bioforce-hrv/id490419670)

This training application helps athletes optimize their performance by measuring heart rate variability. It provides feedback to personalize training volume and intensity for maximum results. Requires a BioForce HRV system purchase and valid account to use.

**Highlights:** Heart rate variability measurement, Training optimization, Personalized training volume, Personalized training intensity, Feedback for training adjustments

**Features:** macOS Compatibility

**In-app purchases:** none


### BELLr

[App page](https://appshunter.io/ios/app/bellr/id6502907438)

This app helps kettlebell enthusiasts track and improve their swings with automatic counting and detailed analysis. It integrates with Apple Watch Activity Rings to keep you motivated towards your fitness goals.

**Highlights:** Automatic swing and set counting, Detailed swing analysis, Swing countdown workout, Activity Ring integration, Real-time performance metrics

**In-app purchases:** none


## Frequently asked questions

### Is BioForce HRV free?

BioForce HRV is free to download, with no in-app purchases.

### Is BELLr free?

BELLr is free to download, with no in-app purchases.

### Which has better reviews, BioForce HRV or BELLr?

BELLr is rated higher. BioForce HRV averages 2.8 out of 5 from 8 ratings, while BELLr averages 5.0 from 1 ratings.

### Do BioForce HRV or BELLr have ads?

Neither BioForce HRV nor BELLr shows ads.

### Which is updated more often, BioForce HRV or BELLr?

BioForce HRV ships an update every 9 months, and BELLr every 3 weeks. Most recently, BioForce HRV was updated on October 6, 2026 and BELLr on October 4, 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.*