Koala is the ultimate pocket-sized sampler. Record anything with your phone's mic or load your own sounds. Use Koala to create beats with those samples, add effects and create a track!
Koala’s super intuitive interface helps you make a tracks in a flash, there is no brake pedal. You can also resample the output of the app back into the input, through the effects, so the sonic possibilities are endless.
Koala's design focuses totally on making the music making progress instant, keeping you in the flow and keeping it fun, not getting bogged down by pages of parameters and micro-editing.
"Been putting that $4 koala sampler to good use lately. Undeniably great tool that puts some of these expensive beat boxes to shame. A must cop." -- flying lotus, twitter
* Record up to 64 different samples with your mic * Transform your voice or any other sound with 16 superb built-in fx * Resample the output of the app back into a new sample * Export loops or entire tracks as professional quality WAV files * Copy/paste or merge sequences just by dragging them * Create beats with the high-resolution sequencer * Import your own samples * Use AI to separate samples into individual instruments (drums, bass, vocals and other) * Keyboard mode lets you play chromatically or one of 9 scales * Quantize, add swing to get the right feel * Normal/One-shot/Loop/Reverse playback of samples * Attack, release and tone adjustable on each sample * Mute/Solo controls * Note repeat * Add any (or all) of the 16 effects to the entire mix * MIDI controllable - play your samples on a keyboard * Jam with others over WiFi with Ableton Link
NOTE: If you’re having trouble with microphone input please turn off "OpenSL" in Koala's audio settings.
8 Built-in Microphone FX: * More Bass * More Treble * Fuzz * Robot * Reverb * Octave up * Octave down * Synthesizer
Features included in SAMURAI In-App Purchase * Pro-quality Timestretch (4 modes: Modern, Retro, Beats and Re-pitch) * Piano roll editor * Auto-chop (auto, equal, and lazy chop) * Pocket operator sync out
The ultimate pocket sampler
Updated on
06 Nov 2026
Music & Audio
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Ratings and reviews
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4,8
2,97K reviews
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Ganga Bala
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29 April 2020
Incredible app. The amount you can do for the amount you pay is insane. There are a few bugs: it freezes sometimes when you import audio, when I leave the app in the background and receive a phone call I have to close the app otherwise the person cannot hear me in the phone call, some glitches after importing large audio files. However all in all, it is a great app and you can do so much. Creating full songs on the go is very powerful.
25 people found this review helpful
Hayden Mason
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05 November 2026
It's genuinely one of the best music tools I've ever used. Its insistence on resampling makes guides you down a path where you're always creating, and not spending too long tweaking endlessly. Make a sound, modify, resample, do it again - who cares how you got there. keep going. This is not a creation tool that's in any way limited because of being a mobile app - it's a world class creativity haven. Just get it and have fun.
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07 November 2026
I just have one request: please consider incorporating a 303 style Vinyl Sim and tape saturation mixer effect(s), we don't have the ability to use plugins on Android like the users on other platforms-I think these two small inclusions would take things above and beyond. thank you edit: when I first got into sampling, this was one of my first apps and it has grown so so much in just the last six or eight months, everything we have wanted has come to fruition, your continued effort is appreciated
What's new
- Midi mapping for many more things like Quokka and Bus Effects - Record system audio as an input source (Android 10+ only) - Relative MIDI CC knobs (encoders): - (Samurai) Chopper DECAY control - Quality control: change samplerate and interpolation per sample - More accurate autochop - Optimized timestretch to use less CPU - Better midi sync