Yalaloop vs Bent Spool

Yalaloop is a music practice app built for musicians who learn by ear. Slow down any track without changing the pitch, loop tricky passages, and shift the key to match your instrument — all in real time. Whether you're transcribing a solo, practicing a difficult passage, or learning a new song, Yalaloop gives you the tools to break music down at your own pace. Key features: - Time-stretching: Slow down from 0.25x to 2.0x without affecting the pitch. Hear every note clearly, even at half speed. - Pitch-shifting: Transpose up or down in semitone steps without changing the tempo. Match the key to your instrument or voice. - A-B looping: Set loop points on the waveform and repeat a section seamlessly. Fine-tune loop boundaries with precision. - Multiple saved loops: Save different loop regions per track so you can jump between sections. - Play from your library: Open audio files directly from your device. Supports MP3, FLAC, WAV, AAC, and ALAC. Built for: - Musicians learning songs by ear - Music students practicing along with recordings - Transcribers slowing down and isolating parts - Band members learning their parts from full mixes

Bent Spool is a creative effect that can transform simple musical parts into unexpected rhythms and melodies, played live or as an effect in your favorite host app. Shape a tremolo pulse, turn a note into a run of pitched repeats, or build a moving layer from fragments of what you just played. Drive the input with built-in overdrive or fuzz, add a core effect, then finally layer in vintage analog tape effects. THREE MODES TREM: a pulsing volume effect, from a rounded sine through triangle and sawtooth to a hard square gate. Syncs to your host's tempo or runs free. REPEAT: up to 64 pitched copies with their own decay and feedback, across five pitch stations from two octaves down to two octaves up. LOOPS: up to six overlapping fragments of your recent audio, spread across pitch, direction, read position and the stereo field. CHARACTER CHAOS adds movement that suits each mode: octave jumps in REPEAT, held or stalled pulses in TREM, wandering reversals and pitch drift in LOOPS. WEAR adds tape wear, magnetic saturation and digital crush after the active mode. At the input, OD is a softer clip; FUZZ is a harder distortion that sputters as it decays. PRESETS 48 factory presets: 10 TREM, 15 REPEAT, 15 LOOPS and an 8-preset Fuzz Tremolo pack. Unlock to save your own. FREE TO TRY TREM plays in full on the OD voice with ten presets. No time limit, no interruptions. A single $9.99 in-app purchase unlocks REPEAT, LOOPS, FUZZ, the rest of the presets and preset saving. No subscription. Runs as a standalone app or as an AUv3 effect in AUM, Loopy Pro and other AUv3 hosts, on iPhone and iPad.