Bent Spool
Tremolo, Repeat, Loops FX
About
This music app offers creative audio effects for live performance or use within other music apps. Explore rhythmic tremolo, pitched repeats, and looping fragments of your audio. It includes built-in overdrive and tape effects for unique sound shaping.
What's New in Bent Spool
1.0.4
October 12, 2026
Controls are more reliable: fixed an intermittent problem where a control, most often the mode switch, stopped responding until a preset was changed. Swipe the mode switch: slide along it to move between TREM, REPEAT and LOOPS, as well as tapping. Knobs follow your finger: drag up or right to turn a knob up, down or left to turn it down, so a swipe no longer has to be straight up and down. Octave direction for LOOPS: a new DIRECTION switch on the back panel sends the voices up only, down only, or both ways. Up only keeps every voice at or above the original pitch, so low octaves no longer muddy the sound. Triplet sync: 1/16T, 1/8T, 1/4T and 1/2T note lengths in every mode when SYNC is on. In wide host windows, such as AUM on a larger iPad, the pedal now sits centred instead of hugging the left edge.
MoreSubscriptions & In-App Purchases
$9.99
Bent Spool Unlock
REPEAT, LOOPS, FUZZ, 48 presets, preset saving.
Developer apps
FAQ
What is Bent Spool?
Bent Spool is a creative music effect app that transforms audio with tremolo, pitched repeats, and looping features. It can be used as a standalone application or as an AUv3 effect within compatible music hosts.
What are the main modes in Bent Spool?
Bent Spool features three primary modes: TREM for volume pulsing, REPEAT for pitched delays up to five stations, and LOOPS for creating overlapping fragments of recent audio.
Can I save my own presets in Bent Spool?
Yes, you can save your own custom presets in Bent Spool. This feature is unlocked with the one-time in-app purchase.
What devices does Bent Spool support?
Bent Spool is compatible with iPhone and iPad devices, running as a standalone app or within AUv3 hosts.
How much does Bent Spool cost?
Bent Spool is free to try, with the TREM mode and ten presets available without charge. A single $9.99 in-app purchase unlocks all features, including REPEAT, LOOPS, FUZZ, additional presets, and preset saving.
Does Bent Spool have ads?
No, Bent Spool does not contain advertisements. The app offers a free trial and a one-time in-app purchase for full functionality.
How often is Bent Spool updated?
Bent Spool was last updated on October 12, 2026, with version 1.0.4. The release date was October 9, 2026, indicating recent development activity.
What is the age rating for Bent Spool?
Bent Spool has an age rating of 4+, making it suitable for a wide range of users interested in music creation and audio effects.