# Sleep Maker Rain vs SYNERGETIK

The clearest difference is update cadence: SYNERGETIK at every 5 days against Sleep Maker Rain's every 18 months. SYNERGETIK also leads on ratings volume (4 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Sleep Maker Rain against 5.0 for SYNERGETIK. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Sleep Maker Rain ships an update every 18 months, SYNERGETIK every 5 days. The most recent releases landed on September 22, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Sleep Maker Rain | SYNERGETIK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sleep-maker-rain/id445267776/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/synergetik/id6759701937/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 33 MB | 20 MB |
| Requires iOS | **16.0** | 17 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Bahtiyar Polat](https://appshunter.io/developer/354062184) | [MATTEAS GREGORY ELLIS](https://appshunter.io/developer/1867449681) |

## What reviewers say

### Sleep Maker Rain

[App page](https://appshunter.io/ios/app/sleep-maker-rain/id445267776)

This app offers a selection of eight nature and rain sounds to aid sleep, relaxation, and focus. It features a customizable sleep timer with a fade-out function and allows playback with the screen off. Users can personalize the visual theme and enjoy offline functionality.

**Highlights:** Eight nature and rain soundscapes, Customizable sleep timer with fade-out, Background playback with screen off, Offline functionality, Three customizable artwork themes, Independent volume control

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SYNERGETIK

[App page](https://appshunter.io/ios/app/synergetik/id6759701937)

This platform transforms daily habits into a personalized health operating system, tracking five biological domains to provide real-time intelligence. It offers tailored meal and workout recommendations, and helps you plan your day based on your body's current state, without requiring a wearable device.

**Highlights:** Personalized health operating system, Tracks five biological domains, Real-time biological intelligence, Personalized meal recommendations, Adaptive workout plans, Daily planning based on body state

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Maker Rain free?

Sleep Maker Rain is free to download, with no in-app purchases.

### Is SYNERGETIK free?

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

### Which has better reviews, Sleep Maker Rain or SYNERGETIK?

Sleep Maker Rain and SYNERGETIK are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do Sleep Maker Rain or SYNERGETIK have ads?

Neither Sleep Maker Rain nor SYNERGETIK shows ads.

### Which is updated more often, Sleep Maker Rain or SYNERGETIK?

Sleep Maker Rain ships an update every 18 months, and SYNERGETIK every 5 days. Most recently, Sleep Maker Rain was updated on September 22, 2026 and SYNERGETIK on September 30, 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.*