# Sleep Maker Rain vs Calisthenics.pro

The clearest difference is in-app purchases: Sleep Maker Rain at none against Calisthenics.pro's 3. Calisthenics.pro's advantage is update cadence (every 2 days vs every 18 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calisthenics.pro sells 3 in-app purchases, starting at $8.99 per month. Sleep Maker Rain asks for nothing beyond the download.

Sleep Maker Rain ships an update every 18 months, Calisthenics.pro every 2 days. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sleep Maker Rain | Calisthenics.pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sleep-maker-rain/id445267776/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 33 MB | 50 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bahtiyar Polat](https://appshunter.io/developer/354062184) | [Szymon Bodych](https://appshunter.io/developer/1740990928) |

## 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


### Calisthenics.pro

[App page](https://appshunter.io/ios/app/calisthenicspro-workout/id6813078292)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro monthly | $8.99 | per month |
| Pro yearly | $69.99 | per year |
| Pro lifetime | $139.99 | one-time |


## Frequently asked questions

### Is Sleep Maker Rain free?

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

### Is Calisthenics.pro free?

Calisthenics.pro is free to download, with in-app purchases available.

### Do Sleep Maker Rain or Calisthenics.pro have ads?

Neither Sleep Maker Rain nor Calisthenics.pro shows ads.

### Which is updated more often, Sleep Maker Rain or Calisthenics.pro?

Sleep Maker Rain ships an update every 18 months, and Calisthenics.pro every 2 days. Most recently, Sleep Maker Rain was updated on October 8, 2026 and Calisthenics.pro 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.*