# NeuroDevApp vs SwingleSonic SLEEP

The clearest difference is update cadence: SwingleSonic SLEEP at fortnightly against NeuroDevApp's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

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

NeuroDevApp ships an update every 8 months, SwingleSonic SLEEP fortnightly. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | NeuroDevApp | SwingleSonic SLEEP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Fortnightly** |
| Size | 98 MB | 33 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BRAINBIT INC.](https://appshunter.io/developer/1510548622) | [Davide Del Vento](https://appshunter.io/developer/1716445402) |

## What reviewers say

### NeuroDevApp

[App page](https://appshunter.io/ios/app/neurodevapp/id6496372019)

**Features:** macOS Compatibility

**In-app purchases:** none


### SwingleSonic SLEEP

[App page](https://appshunter.io/ios/app/swinglesonic-sleep/id6717572068)

**In-app purchases:** none


## Frequently asked questions

### Is NeuroDevApp free?

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

### Is SwingleSonic SLEEP free?

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

### Do NeuroDevApp or SwingleSonic SLEEP have ads?

Neither NeuroDevApp nor SwingleSonic SLEEP shows ads.

### Which is updated more often, NeuroDevApp or SwingleSonic SLEEP?

NeuroDevApp ships an update every 8 months, and SwingleSonic SLEEP fortnightly. Most recently, NeuroDevApp was updated on October 1, 2026 and SwingleSonic SLEEP on October 5, 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.*