Slow down, pitch-shift, and loop any section of a song.
10-band EQ, compressor, vocal cancel effect, waveform A-B repeat, and audio export — all in one app.
Free · iOS 15.0+ · iPhone · Remove Ads — $0.99/month
Play along, slow it down, loop the tricky bits.
RiffCatch has every tool to help you transcribe music faster.
Slow down or speed up any track without changing the pitch. Drop it to 50% to hear every nuance of a fast riff. Use the slider or the 2D pad for real-time control.
50% – 150%Transpose the key of any song without changing its tempo. Shift up to ±12 semitones to match your instrument's tuning or to play in a different key.
±12 SemitonesSet a loop start (A) and end (B) on the visual waveform display — then drag the markers with your finger to fine-tune the range on the fly. Repeat any section endlessly to nail that phrase. Premium members can also export the A-B region as a standalone clip.
Section Loop · Waveform ScrubShape your sound with a 10-band EQ from 32 Hz to 16 kHz. Six built-in presets let you quickly dial in the right tone: Flat, Bass Boost, Vocal Focus, Treble Boost, Low Cut, and High Cut.
6 PresetsA dedicated effect that reduces center-panned vocals using phase cancellation, letting the instruments in the mix come forward. Use the strength knob to dial in how much of the vocal you want removed.
Center CancelAdd ambience with 8 reverb presets including Small Room, Large Hall, and Cathedral. Feel the space around the music while you listen deeply.
8 PresetsEven out the dynamic range of any track with the built-in compressor. Bring up quiet notes and tame peaks so every detail — from a soft guitar lick to a loud drum hit — is easy to hear.
Dynamic ControlExport your processed audio with tempo, pitch, and EQ applied. Choose WAV (lossless) or M4A (AAC compressed). Premium members can also export just the A-B loop region as a standalone clip — perfect for creating focused practice loops.
WAV / M4A · A-B Clip Export ✨Control tempo (X-axis) and pitch (Y-axis) simultaneously with a single finger on the 2D pad. Play along and adjust on the fly without stopping the music.
Real-TimeBuild a playlist from multiple audio files. Swipe to remove, tap to play. Supports continuous playback and individual looping for focused practice sessions.
Continuous PlayAll your data stays on your device. Music files, playlists, and settings are never uploaded to any server. No account required — just open and play.
100% LocalSwipe through the app's key screens.
No complicated setup. Just load a track and start learning.
Tap the "+" button to import a music file from your Files app or iCloud Drive. Supports MP3, M4A, WAV, MP4, and AAC.
Slow the track down with the tempo slider. On the waveform display, tap and drag the A and B markers to set your loop range precisely. Shift the pitch to match your instrument.
Use the 10-band EQ to bring out the part you want. Switch on Vocal Cancel to push the vocals back and hear the instruments clearly. Add the compressor to level out dynamics, and layer reverb for depth.
Export the full processed track — or just the A-B loop region (Premium) — as WAV or M4A. Your per-track settings are saved automatically with Premium.
Free to download. Available now on the App Store for iPhone.