App Store
Version 2.5 · 2026-09-26
This version fixes the randomization bug when both "wait after the fill" and "wait before the fill" durations are zero.
Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 2.5, updated 2026-09-26.








Store screenshots supplied by the developer.
Auto Fills is a random MIDI generator app for creating drum fills for your drum synth apps or hardware synthesizers. It works as an Audio Unit AUv3 plugin with the supported host apps such as AUM, Loopy Pro, Logic Pro, Cubasis, Nanostudio, apeMatrix etc.
In Auto Fills, you are working with a drum kit. You can either create the kit by adding drum parts and assigning them MIDI notes/channels yourself, or you can select a kit templete from the settings menu for an app or hardware for quick setup.
- In Kit mode, you can assign a probability value to each drum part.
- In Velocity mode, you can assign a velocity to each drum part, and you can also introduce velocity variety for them.
- In Duration mode, you can set the drum fill length as well as the waiting time before and/or after the drum fill, in beats or bars.…
From the developer’s store description.
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This version fixes the randomization bug when both "wait after the fill" and "wait before the fill" durations are zero.
auto-fills-drum-fill-generatorWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
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