Maelzel is made by Bogdan Tsiganiuk. Contact: bogdan.tsiganiyk@gmail.com. By using Maelzel you agree to these terms.
Maelzel is a metronome and a practice trainer. It plays a click at a tempo you set, in a meter you set, and it keeps a log of what you practised. That is the whole of it.
It is not a teacher and it is not a metronome hardware product. Nothing in the app assesses whether you played correctly: when the trainer asks whether a rung was clean, you answer, and the log records your answer.
Nothing is imported, detected or verified against an outside source. A tempo, a piece’s best, a session’s length or a ladder’s result is only as accurate as what was set and what you confirmed. Practice figures are a record you keep, not a measurement of your playing.
Maelzel schedules its click against the device’s audio clock so that a busy phone cannot shift a beat. What it cannot control is what happens after the sound leaves the device: Bluetooth headphones and speakers add their own delay, which is a property of that hardware. The Visual lead setting in Preferences moves the on-screen beat to match; it does not and cannot move the sound.
Your songs, setlists, pieces and practice sessions live on your device. We do not receive them. See the Privacy Policy.
You are responsible for your own backups. Use Preferences → Data → Export backup and keep the file somewhere you can find it — if you lose or reset your device without a backup, the records are gone and we cannot recover them. Importing a backup replaces what is on the phone.
Explicitly start the free three-day trial to use every metronome and trainer feature. Three days means 72 elapsed hours from the original trial purchase. Reinstalling, restoring purchases, resetting data or importing a backup does not restart it.
After the trial, a one-time lifetime purchase is required to continue using the metronome and trainer. Trial and lifetime access include the same complete feature set, with no song limit or restricted history window.
The trial never automatically charges or renews. A lifetime purchase is a separate, explicit purchase charged to your Apple Account at confirmation, and does not renew. There is no active subscription offering. Apple handles refunds under its policies.
Expiry never deletes your records. Metronome and trainer access stops, but songs, setlists, pieces and sessions remain saved. Data settings, backup export/import, restore and legal information remain available.
Maelzel can play loudly through headphones and can keep playing with the screen off. Set the volume before you put headphones on, and take the usual care with your hearing.
Maelzel is for your own practice and performance. Do not attempt to defeat the purchase mechanism, and do not redistribute the app or its assets.
To the maximum extent permitted by law, Maelzel is provided “as is”, without warranties of any kind, and we are not liable for any loss arising from your use of it — including any performance, rehearsal, recording session or examination in which it was used. Nothing here limits liability that cannot be limited by law.
If these terms change, the date at the top changes with them. Continuing to use the app after a change means you accept it.