# SleepPromotion vs kaidanplus

The clearest difference is price: kaidanplus at Free against SleepPromotion's $0.49. kaidanplus also leads on update cadence (every 2 days vs every 2 weeks). SleepPromotion's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 26.2). On ads and in-app purchases there is nothing between them.

kaidanplus is free to download; SleepPromotion costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

SleepPromotion ships an update every 2 weeks, kaidanplus every 2 days. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | SleepPromotion | kaidanplus |
| --- | --- | --- |
| Price | $0.49 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Paid | — |
| Size | 327 MB | 26 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Takane okubo](https://appshunter.io/developer/1782046065) | [TAKESHI SUZUKI](https://appshunter.io/developer/1881519410) |

## What reviewers say

### SleepPromotion

[App page](https://appshunter.io/ios/app/sleeppromotion/id6738718181)

This app helps you achieve better sleep by allowing you to mix custom soundscapes with Solfeggio frequencies, binaural beats, and noise. It also tracks your sleep quality using your smartphone's accelerometer, analyzing sleep stages and providing a score.

**Highlights:** Customizable sound mixing, Solfeggio frequencies, Binaural beats, Noise generator, Smartphone sleep tracking, Sleep stage analysis, Sleep quality scoring

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

**In-app purchases:** none


### kaidanplus

[App page](https://appshunter.io/ios/app/kaidanplus/id6761582495)

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

**In-app purchases:** none


## Frequently asked questions

### Is SleepPromotion free?

SleepPromotion costs $0.49, with no in-app purchases.

### Is kaidanplus free?

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

### Do SleepPromotion or kaidanplus have ads?

Neither SleepPromotion nor kaidanplus shows ads.

### Which is updated more often, SleepPromotion or kaidanplus?

SleepPromotion ships an update every 2 weeks, and kaidanplus every 2 days. Most recently, SleepPromotion was updated on October 3, 2026 and kaidanplus on October 11, 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.*