# e vs Touch Tuner

The clearest difference is rating: Touch Tuner at 4.1 against e's 3.0. Touch Tuner also leads on in-app purchases (none vs 1) and ratings volume (7 vs 1). e's advantage is review sentiment (80% vs 43%). On update cadence, ads, monetization model and device support there is nothing between them.

e costs $1.99 and Touch Tuner $0.99 up front. e sells 1 one-off in-app purchase. Touch Tuner asks for nothing beyond the download.

Touch Tuner holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Touch Tuner has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 80% of e's written reviews are positive against 43% of Touch Tuner's, so the app with the better star average is not the one people write more warmly about.

e ships an update every 8 months, Touch Tuner every 6 months. The most recent releases landed on October 23, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | e | Touch Tuner |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/e-scope-3-in-1/id660574048/reviews) | **[4.1 (7 ratings)](https://appshunter.io/ios/app/touch-tuner/id714823553/reviews)** |
| Number of ratings | 1 | **7** |
| Positive reviews | **80.0% of reviews** | 43.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 months** |
| Monetization | Paid | Paid |
| Size | 2 MB | 20 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [e-skett Corp.](https://appshunter.io/developer/591591895) | [Kawai Musical Instruments Manufacturing Co., Ltd.](https://appshunter.io/developer/448581784) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-scope-3-in-1/id660574048)

This app combines an oscilloscope, FFT analyzer, and signal generator. It allows real-time observation of audio device frequency characteristics and waveform analysis. Features include multiple oscilloscope modes, detailed FFT spectrum analysis, and various signal generation options.

**Highlights:** Oscilloscope with Normal, Trigger, and Single modes, FFT analyzer with peak level, frequency, and THD display, Signal generator for sine waves, white noise, and sweeps, Real-time FFT synchronization sweep mode, Screen capture and save functionality, Adjustable sensitivity and time span

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Automatic measurement option | $1.99 | one-time |


### Touch Tuner

[App page](https://appshunter.io/ios/app/touch-tuner/id714823553)

This app offers precise tuning for musicians with a visual cent meter, rotating pitch dial, and real-time waveform display. Customize the interface with adjustable layouts, colors, and wallpapers for an enjoyable user experience.

**Highlights:** Accurate cent meter for pitch deviation, Dynamically rotating pitch dial, Real-time waveform display, Customizable interface layout and color, Chromatic tuner with adjustable sensitivity, Selectable classical temperament tuning methods, Pitch pipe mode

**In-app purchases:** none


## Frequently asked questions

### Is e free?

e costs $1.99, and also offers in-app purchases.

### Is Touch Tuner free?

Touch Tuner costs $0.99, with no in-app purchases.

### Which has better reviews, e or Touch Tuner?

Touch Tuner is rated higher. e averages 3.0 out of 5 from 1 ratings, while Touch Tuner averages 4.1 from 7 ratings.

### Do e or Touch Tuner have ads?

Neither e nor Touch Tuner shows ads.

### Which is updated more often, e or Touch Tuner?

e ships an update every 8 months, and Touch Tuner every 6 months. Most recently, e was updated on October 23, 2026 and Touch Tuner on October 12, 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.*