# HeartBreath HRV vs SleepingTemp

The clearest difference is in-app purchases: SleepingTemp at none against HeartBreath HRV's 4. SleepingTemp also leads on update cadence (every 5 days vs every 3 months) and price ($2.99 vs $8.99). HeartBreath HRV's advantage is review sentiment (67% vs 45%) and iOS requirement (14.0 vs 17.0). On ads and device support there is nothing between them.

HeartBreath HRV costs $8.99 and SleepingTemp $2.99 up front. HeartBreath HRV sells 4 one-off in-app purchases. SleepingTemp asks for nothing beyond the download.

HeartBreath HRV ships an update every 3 months, SleepingTemp every 5 days. Both last shipped on November 12, 2026.

## The numbers

| Metric | HeartBreath HRV | SleepingTemp |
| --- | --- | --- |
| Price | $8.99 | **$2.99** |
| Rating | **[4.6 (55 ratings)](https://appshunter.io/ios/app/heartbreath-hrv/id1380171851/reviews)** | — |
| Number of ratings | **55** | — |
| Positive reviews | **66.7% of reviews** | 45.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 198 MB | 17 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Erwin Gabler](https://appshunter.io/developer/1214360314) | [Kevin Reutter](https://appshunter.io/developer/1273424431) |

## What reviewers say

### HeartBreath HRV

[App page](https://appshunter.io/ios/app/heartbreath-hrv/id1380171851)

This app uses your phone's camera to measure heart rate variability through guided slow breathing exercises. It provides biofeedback to help you train your autonomic nervous system for rest and relaxation. Track your progress and optimize your breathing for better well-being.

**Highlights:** Guided slow breathing exercises, Heart rate variability measurement via camera, Customizable visual and auditory biofeedback, Live heart rate and variability display, Optimal breathing speed determination, Long-term trend evaluations, Apple Health integration

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Eternity VaYou Sound | $3.99 | one-time |
| Wind & Waves VaYou Sound | $3.99 | one-time |
| Burma Bliss VaYou Sound | $3.99 | one-time |
| ECG Pro Features | $8.99 | one-time |


### SleepingTemp

[App page](https://appshunter.io/ios/app/sleepingtemp/id1673757578)

Monitor your wrist temperature overnight with this Apple Watch app. Gain insights into your sleep patterns and identify potential disruptions affecting sleep quality. Understand how temperature fluctuations relate to your body's internal state for better rest.

**Highlights:** Sleep temperature monitoring, Wrist temperature insights, Sleep disruption identification, Apple Watch integration, Sleep focus activation tracking

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is HeartBreath HRV free?

HeartBreath HRV costs $8.99, and also offers in-app purchases.

### Is SleepingTemp free?

SleepingTemp costs $2.99, with no in-app purchases.

### Do HeartBreath HRV or SleepingTemp have ads?

Neither HeartBreath HRV nor SleepingTemp shows ads.

### Which is updated more often, HeartBreath HRV or SleepingTemp?

HeartBreath HRV ships an update every 3 months, and SleepingTemp every 5 days. Most recently, HeartBreath HRV was updated on November 12, 2026 and SleepingTemp on November 12, 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.*