# Diapason Audio Generator vs MailMyHtml

The clearest difference is price: MailMyHtml at Free against Diapason Audio Generator's $1.99. MailMyHtml also leads on ratings volume (3 vs 1) and iOS requirement (10.0 vs 12.2). Diapason Audio Generator's advantage is rating (5.0 vs 3.0). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

MailMyHtml is free to download; Diapason Audio Generator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Diapason Audio Generator holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 56% of Diapason Audio Generator's written reviews are positive against 50% of MailMyHtml's.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Diapason Audio Generator | MailMyHtml |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/diapason-audio-generator/id352091730/reviews)** | [3.0 (3 ratings)](https://appshunter.io/ios/app/mailmyhtml/id1169017692/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **55.6% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Paid | **Free** |
| Size | 2 MB | 1 MB |
| Requires iOS | 12.2 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fabien Lefebvre](https://appshunter.io/developer/338004167) | [Dennie Frifeldt](https://appshunter.io/developer/619333161) |

## What reviewers say

### Diapason Audio Generator

[App page](https://appshunter.io/ios/app/diapason-audio-generator/id352091730)

Generate various audio test tones, including sine waves, noise, and more. Combine up to four independent sources with phase control for each speaker. Monitor waveforms and output power with clipping indication.

**Highlights:** Multiple test tone types (sine, square, triangle, sawtooth, noise), Combine up to 4 independent audio sources, Phase switch for each speaker channel, Frequency sweeping and musical scale alignment, Narrow band noise generation, Waveform viewer, RMS power and clipping indication

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

**In-app purchases:** none


### MailMyHtml

[App page](https://appshunter.io/ios/app/mailmyhtml/id1169017692)

Easily send emails with custom HTML designs directly from your mobile device. Import HTML files from cloud storage or write and preview your own code within the app.

**Highlights:** Send emails with HTML content, Import HTML files from Dropbox, Write and preview HTML code, Responsive email design support, Directly embed HTML in email body

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Diapason Audio Generator free?

Diapason Audio Generator costs $1.99, with no in-app purchases.

### Is MailMyHtml free?

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

### Which has better reviews, Diapason Audio Generator or MailMyHtml?

Diapason Audio Generator is rated higher. Diapason Audio Generator averages 5.0 out of 5 from 1 ratings, while MailMyHtml averages 3.0 from 3 ratings.

### Do Diapason Audio Generator or MailMyHtml have ads?

Neither Diapason Audio Generator nor MailMyHtml shows ads.

### Which is updated more often, Diapason Audio Generator or MailMyHtml?

Diapason Audio Generator ships an update every 5 months, and MailMyHtml every 5 months. Most recently, Diapason Audio Generator was updated on November 1, 2026 and MailMyHtml on November 2, 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.*