# EEG Waves vs SwingleSonic SLEEP

The clearest difference is price: SwingleSonic SLEEP at Free against EEG Waves's $24.99. SwingleSonic SLEEP also leads on update cadence (fortnightly vs every 12 months). EEG Waves's advantage is chart position (#99 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SwingleSonic SLEEP is free to download; EEG Waves costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EEG Waves ships an update every 12 months, SwingleSonic SLEEP fortnightly. The most recent releases landed on October 30, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | EEG Waves | SwingleSonic SLEEP |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/eeg-waves/id6443848939/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Fortnightly** |
| Monetization | Paid | — |
| Best chart rank | **#99** | — |
| Size | 55 MB | 33 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BRAINBIT INC.](https://appshunter.io/developer/1510548622) | [Davide Del Vento](https://appshunter.io/developer/1716445402) |

## What reviewers say

### EEG Waves

[App page](https://appshunter.io/ios/app/eeg-waves/id6443848939)

**Currently charting:** #99 Top Paid · Health & Fitness (US App Store)

This system records user emotional activity, including relaxation and concentration states. It generates graphs of wave activity, emotional dynamics, and rhythm diagrams. Data can be exported, saved, and filtered by date.

**Highlights:** Record emotional activity, Track relaxation and concentration, Graph wave activity dynamics, Visualize emotional states, Circular rhythm diagrams, Export and save session data, Filter data by date

**Features:** Vision Pro support

**In-app purchases:** none


### SwingleSonic SLEEP

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

**In-app purchases:** none


## Frequently asked questions

### Is EEG Waves free?

EEG Waves costs $24.99, with no in-app purchases.

### Is SwingleSonic SLEEP free?

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

### Do EEG Waves or SwingleSonic SLEEP have ads?

Neither EEG Waves nor SwingleSonic SLEEP shows ads.

### Which is updated more often, EEG Waves or SwingleSonic SLEEP?

EEG Waves ships an update every 12 months, and SwingleSonic SLEEP fortnightly. Most recently, EEG Waves was updated on October 30, 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.*