# HRV4Biofeedback vs Contur

The clearest difference is review sentiment: Contur at 100% against HRV4Biofeedback's 53%. Contur also leads on price (Free vs $9.99). HRV4Biofeedback's advantage is update cadence (every 2 months vs every 34 months) and chart position (#164 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Contur is free to download; HRV4Biofeedback costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HRV4Biofeedback ships an update every 2 months, Contur every 34 months. The most recent releases landed on September 25, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | HRV4Biofeedback | Contur |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[3.4 (29 ratings)](https://appshunter.io/ios/app/hrv4biofeedback/id1504638613/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 53.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 34 months |
| Monetization | Free | Free |
| Best chart rank | **#164** | — |
| Size | 138 MB | 67 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [A.S.M.A. B.V.](https://appshunter.io/developer/1066843463) | [ORG DIKIDI](https://appshunter.io/developer/1057010744) |

## What reviewers say

### HRV4Biofeedback

[App page](https://appshunter.io/ios/app/hrv4biofeedback/id1504638613)

**Currently charting:** #164 Top Paid · Lifestyle (US App Store)

This app uses your phone's camera to measure heart rate variability and provide biofeedback. It guides you through deep breathing exercises to improve self-regulation and manage stress. Track your progress and explore correlations with your daily experiences.

**Highlights:** Camera-based HRV measurement, Real-time heart rate feedback, Resonant frequency analysis, Biofeedback score, Subjective annotations, HealthKit integration, Bluetooth sensor support

**Features:** Vision Pro support

**In-app purchases:** none


### Contur

[App page](https://appshunter.io/ios/app/contur/id1571663000)

Easily book appointments with specialists, view detailed company information, and discover exclusive offers. You can also read about services, check prices, and leave reviews for specialists.

**Highlights:** Book appointments with specialists, View company information, Check service prices, Browse specialist portfolios, Leave specialist reviews, Receive exclusive offers, Get updates on promotions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HRV4Biofeedback free?

HRV4Biofeedback costs $9.99, with no in-app purchases.

### Is Contur free?

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

### Do HRV4Biofeedback or Contur have ads?

Neither HRV4Biofeedback nor Contur shows ads.

### Which is updated more often, HRV4Biofeedback or Contur?

HRV4Biofeedback ships an update every 2 months, and Contur every 34 months. Most recently, HRV4Biofeedback was updated on September 25, 2026 and Contur on June 2, 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.*