# SweetSleep vs Heart Graph

The clearest difference is review sentiment: Heart Graph at 86% against SweetSleep's 0%. Heart Graph also leads on rating (4.6 vs 1.0) and update cadence (weekly vs every 6 weeks). SweetSleep's advantage is price (Free vs $4.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

SweetSleep is free to download; Heart Graph costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Heart Graph holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Heart Graph has 49 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of SweetSleep's written reviews are positive against 86% of Heart Graph's.

SweetSleep ships an update every 6 weeks, Heart Graph weekly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SweetSleep | Heart Graph |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [1.0 (4 ratings)](https://appshunter.io/ios/app/sweetsleep-relax/id1089552542/reviews) | **[4.6 (49 ratings)](https://appshunter.io/ios/app/heart-graph-visualised-pulse/id1281349018/reviews)** |
| Number of ratings | 4 | **49** |
| Positive reviews | 0.0% of reviews | **86.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 50 MB | 12 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Omesoft](https://appshunter.io/developer/376298490) | [Ruslan Kimaev](https://appshunter.io/developer/1274530501) |

## What reviewers say

### SweetSleep

[App page](https://appshunter.io/ios/app/sweetsleep-relax/id1089552542)

This application uses advanced digital audio synthesis technology to adjust sound wave frequencies. It aims to help users achieve an optimal brain state for relaxation and passion, empowering them to manage their well-being without medication.

**Highlights:** Digital audio synthesis, Sound wave frequency adjustment, Brain state optimization, DIY well-being management, Passion and relaxation enhancement

**Features:** Vision Pro support

**In-app purchases:** none


### Heart Graph

[App page](https://appshunter.io/ios/app/heart-graph-visualised-pulse/id1281349018)

Visualize your heart rate data stored in your health app. See average, minimum, and maximum heart rate values presented in tables or graphs. Export your heart rate data to a CSV file for further analysis.

**Highlights:** Visualize heart rate data, View average, min, max heart rate, Data presented in tables and graphs, Export heart rate data to CSV, Show workout heart rate on graph

**In-app purchases:** none


## Frequently asked questions

### Is SweetSleep free?

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

### Is Heart Graph free?

Heart Graph costs $4.99, with no in-app purchases.

### Which has better reviews, SweetSleep or Heart Graph?

Heart Graph is rated higher. SweetSleep averages 1.0 out of 5 from 4 ratings, while Heart Graph averages 4.6 from 49 ratings.

### Do SweetSleep or Heart Graph have ads?

Neither SweetSleep nor Heart Graph shows ads.

### Which is updated more often, SweetSleep or Heart Graph?

SweetSleep ships an update every 6 weeks, and Heart Graph weekly. Most recently, SweetSleep was updated on October 8, 2026 and Heart Graph on October 24, 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.*