BlueKeyDetect Downloads & RevenueBlueKeyDetect · App Store
Not in any tracked top chart right now.
Updated 4 Nov 2026 · rankings refresh through the day
DeveloperStefan Arnhold
CategoryMusic
Price0.99 EUR
Released
Rating★ 0.0 (0)
Version2401
Age rating4+
First seen by us
2 Nov 2026
2 Nov 2026Full timeline · 3 events in the last 12 months
- 🆕BlueKeyDetect first spotted by AppInsider#36 in Top Paid · Music · Germany
- 🆕BlueKeyDetect: its developer released another app: MidiAnalyzer
- 🆕BlueKeyDetect 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
0.0 ★
0 ratings
Measured
BlueKeyDetect on the App Store
App details
App ID
1493584771
Publisher
Stefan Arnhold
On the store since
Jan 2020
6 years on the store
Minimum OS
iOS 10.0+
iPhone 5 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
16 MB
Also listed in
Education
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
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About BlueKeyDetect
If you are part of a jam sessions with guitar or bass, you should know the key in which the others are playing. The pros among you may be able to hear that, but I either need the information from the chord sheet or someone knows the key ...
As a programmer, I quickly have an app in mind simply recording a piece of a song and then recognizing the key via my iPhone.
The result is the BlueKeyDetect app:
One touch on the display plus a short piece of recording and the beats per minute with the key of the song are displayed. You should record short pieces several times or a slightly longer one to get the correct key displayed.
There are limits, since the key in the song can also change and depending on the song, the recognition can be difficult anyway, but in practice it still works quite well if you take a few things into account:
① Find places in the song where there is a lot of sound. Drums and percussion don't do much to recognize the key.
② The longer you record the song, the greater the chances of recognizing the correct key. Alternatively, you can record short phrases several times and then choose the most detected key.
③ Background noise makes detection difficult, so if possible record only the song and not at a low level.
As a programmer, I quickly have an app in mind simply recording a piece of a song and then recognizing the key via my iPhone.
The result is the BlueKeyDetect app:
One touch on the display plus a short piece of recording and the beats per minute with the key of the song are displayed. You should record short pieces several times or a slightly longer one to get the correct key displayed.
There are limits, since the key in the song can also change and depending on the song, the recognition can be difficult anyway, but in practice it still works quite well if you take a few things into account:
① Find places in the song where there is a lot of sound. Drums and percussion don't do much to recognize the key.
② The longer you record the song, the greater the chances of recognizing the correct key. Alternatively, you can record short phrases several times and then choose the most detected key.
③ Background noise makes detection difficult, so if possible record only the song and not at a low level.
Latest updates
2401
update iOS17
