# Denma vs Sonic Eject

The clearest difference is rating: Sonic Eject at 4.5 against Denma's 2.8. Sonic Eject also leads on ads (none vs shown) and update cadence (every 3 days vs every 5 weeks). Denma's advantage is in-app purchases (none vs 2) and ratings volume (78 vs 17). On price and device support there is nothing between them.

Both are free to download. Sonic Eject sells 2 in-app purchases, starting at $8.99 per year. Denma asks for nothing beyond the download.

Sonic Eject holds the better App Store score, 4.5 against 2.8. Both are backed by a comparable volume of ratings — 78 and 17 respectively.

Denma ships an update every 5 weeks, Sonic Eject every 3 days. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Denma | Sonic Eject |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (78 ratings)](https://appshunter.io/ios/app/denma-tap-to-vibrate/id1397740677/reviews) | **[4.5 (17 ratings)](https://appshunter.io/ios/app/sonic-eject/id1625256246/reviews)** |
| Number of ratings | **78** | 17 |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 21 MB | 14 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kentaro Hayashi](https://appshunter.io/developer/1397740676) | [祥 徐](https://appshunter.io/developer/1608583299) |

## What reviewers say

### Denma

[App page](https://appshunter.io/ios/app/denma-tap-to-vibrate/id1397740677)

This app offers a simple way to engage your iPhone's vibration motor for lighthearted fun. Tap the on-screen image to activate and deactivate the vibration, suitable for solo play or with friends. It utilizes the device's built-in vibration and is intended for entertainment purposes only.

**Highlights:** Tap to activate vibration, Tap to deactivate vibration, Uses iPhone's built-in vibration, For solo or group fun, Simple interface

**In-app purchases:** none


### Sonic Eject

[App page](https://appshunter.io/ios/app/sonic-eject/id1625256246)

This app acts as a frequency generator and headphone burner. It utilizes various audio frequencies, white noise, and pink noise to help new headphones reach a stable state and improve sound quality. Features include manual frequency adjustment and automatic full-band modes.

**Highlights:** Frequency generator, Automatic full-band mode, Manual Hertz adjustment, White noise generation, Pink noise generation, Headphone burn-in

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| sonic pro a year | $8.99 | per year |
| sonic pro a year discount | $8.99 | per year |


## Frequently asked questions

### Is Denma free?

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

### Is Sonic Eject free?

Sonic Eject is free to download, with in-app purchases available.

### Which has better reviews, Denma or Sonic Eject?

Sonic Eject is rated higher. Denma averages 2.8 out of 5 from 78 ratings, while Sonic Eject averages 4.5 from 17 ratings.

### Do Denma or Sonic Eject have ads?

Denma shows ads; Sonic Eject does not.

### Which is updated more often, Denma or Sonic Eject?

Denma ships an update every 5 weeks, and Sonic Eject every 3 days. Most recently, Denma was updated on October 21, 2026 and Sonic Eject on October 14, 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.*