# BreathTuner HRV vs SleepingTemp

The clearest difference is in-app purchases: SleepingTemp at none against BreathTuner HRV's 4. SleepingTemp also leads on update cadence (every 5 days vs every 3 months) and review sentiment (45% vs 21%). BreathTuner HRV's advantage is chart position (#153 vs unranked) and iOS requirement (14.0 vs 17.0). On ads, monetization model and device support there is nothing between them.

BreathTuner HRV costs $3.99 and SleepingTemp $2.99 up front. BreathTuner HRV sells 4 one-off in-app purchases. SleepingTemp asks for nothing beyond the download.

BreathTuner HRV ships an update every 3 months, SleepingTemp every 5 days. Both last shipped on November 7, 2026.

## The numbers

| Metric | BreathTuner HRV | SleepingTemp |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | **[4.4 (38 ratings)](https://appshunter.io/ios/app/breathtuner-hrv/id1562688066/reviews)** | — |
| Number of ratings | **38** | — |
| Positive reviews | 21.4% of reviews | **45.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Paid | Paid |
| Best chart rank | **#153** | — |
| Size | 156 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

### BreathTuner HRV

[App page](https://appshunter.io/ios/app/breathtuner-hrv/id1562688066)

**Currently charting:** #153 Top Paid · Health & Fitness (US App Store)

Discover your optimal breathing rate to harmonize your mind and body. This app analyzes your breathing and heart rate variability to guide you to your personal resonance frequency. Enhance meditation and daily exercises for improved well-being.

**Highlights:** Find personal optimal breathing frequency, Analyze breathing and heart rate variability (HRV), Guided breathing exercises, Integrates with Apple Health, Uses iPhone camera for pulse detection, Optional chest strap 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 |
| BreathTuner - Pro | $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 BreathTuner HRV free?

BreathTuner HRV costs $3.99, and also offers in-app purchases.

### Is SleepingTemp free?

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

### Do BreathTuner HRV or SleepingTemp have ads?

Neither BreathTuner HRV nor SleepingTemp shows ads.

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

BreathTuner HRV ships an update every 3 months, and SleepingTemp every 5 days. Most recently, BreathTuner HRV was updated on November 7, 2026 and SleepingTemp on November 7, 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.*