Diapason Audio Generator Downloads & RevenueDiapason Audio Generator · App Store
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperFabien Lefebvre
CategoryUtilities
Price1.99 EUR
Released
Rating★ 5.0 (2)
Version2.8
Age rating4+
First seen by us
27 Sep 2026
27 Sep 2026Installs (est.)500+ worldwide
Diapason Audio Generator update history & changes
Last change · 8 events since 25 Jan 2010Full timeline ↓📈Dropped out of every chart we track📈Entered the top 100🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 7 events in the last 12 months
- 📈Diapason Audio Generator dropped out of every chart we trackLast seen 21 Oct
- 📈Diapason Audio Generator entered the top 100Top Paid · Utilities · DE
- 📈Diapason Audio Generator charting in a new countryGermany
- 📈Diapason Audio Generator entered the top 100Top Paid · Utilities · FR
- 📈Diapason Audio Generator charting in a new countryFrance
- 🆕Diapason Audio Generator first spotted by AppInsider#51 in Top Paid · All Apps · Italy
- 🆕Diapason Audio Generator released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
2 ratings
Measured
Diapason Audio Generator on the App Store
App details
App ID
352091730
Publisher
Fabien Lefebvre
On the store since
Jan 2010
16 years on the store
Minimum OS
iOS 12.2+
iPhone 5s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
2 MB
Also listed in
Music
Diapason Audio Generator downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
2 ratings
Measured
Ratings
2
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
2.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Utilities apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Diapason Audio Generator
This App is a powerful test tone generator. Yet it is extremely simple to use. No other audio generator App is as complete as this one whatever its price !
You can combine (add) up to 4 independent sources and send the result to left and/or right speaker. There is a phase switch for each channel.
Available test tone types are: sine wave, square, triangle, saw tooth, white noise, pink noise.
As you can see on sample images, first source is very basic and thus very easy to use. Second source is more complex and allows sweeping of frequency for sine waves. Third source is quite similar to the previous one except that frequencies are aligned with a musical scale (reference is 440Hz). Fourth source is for narrow band noise.
Rotating knobs are there to ease frequency selection.
The display at bottom of first tab is a rough waveform viewer, to monitor the generated signal.
The output RMS power of a channel is indicated. Clipping is indicated as well should it occur (sources are added).
Any comment, any feedback ? There is a blog for this.
Note that the built-in speaker cannot reproduce the highest and lowest frequencies (below 400 and above 11000Hz to give an idea). You will ear these frequencies only with a good headphone or HiFi system.
You can combine (add) up to 4 independent sources and send the result to left and/or right speaker. There is a phase switch for each channel.
Available test tone types are: sine wave, square, triangle, saw tooth, white noise, pink noise.
As you can see on sample images, first source is very basic and thus very easy to use. Second source is more complex and allows sweeping of frequency for sine waves. Third source is quite similar to the previous one except that frequencies are aligned with a musical scale (reference is 440Hz). Fourth source is for narrow band noise.
Rotating knobs are there to ease frequency selection.
The display at bottom of first tab is a rough waveform viewer, to monitor the generated signal.
The output RMS power of a channel is indicated. Clipping is indicated as well should it occur (sources are added).
Any comment, any feedback ? There is a blog for this.
Note that the built-in speaker cannot reproduce the highest and lowest frequencies (below 400 and above 11000Hz to give an idea). You will ear these frequencies only with a good headphone or HiFi system.
Latest updates
2.8
Display has been optimised for various screen sizes.
