Koala Sampler vs Ocenaudio

Koala Sampler records sounds through a device microphone or imports audio for making beats and tracks. It can capture up to 64 samples and includes a high-resolution sequencer, keyboard mode, quantization, swing, and effects. Projects can be exported as WAV loops or tracks; the iOS version can also export Ableton Live Sets. MIDI control and Ableton Link support external control and Wi-Fi jamming. Optional in-app purchases add more tools: Samurai includes time-stretch algorithms, a piano roll, auto-chop, a three-band EQ, a polyphonic synth, and MIDI output. Mixer adds four channels, a main bus, and five effect slots per channel; its external plugin hosting is available on iOS, Mac, and Windows, but not Android. Koala Sampler is listed for Android, iOS, Linux, macOS, and Windows. Desktop builds for Mac, Windows, Linux, and Raspberry Pi are free for now, although the Windows build is in beta. The iOS app costs $4.99, paid once, with in-app purchases sold separately. The maker says mobile apps do not require an account and keep projects and audio on the device.

Ocenaudio is a free audio editor for editing and analyzing files on Windows, macOS, and Linux. Users can preview effects as they adjust controls, including effects from supported VST plugins, and apply edits or effects to separate selected portions together. The editor includes a spectrogram whose settings update in real time, as well as spectral analysis and audio signal generation. Opening, saving, and applying effects run in the background, allowing work on other files during those operations. The maker says there is no limit to audio-file length or quantity and describes memory management for large files. The Windows download supports Windows 10 or later, 64-bit, with installer and portable ZIP options. The current macOS download supports 14.4 or later on Intel and ARM 64-bit, with a legacy build for 10.14 or later. Linux options include an AppImage and packages for Debian, Ubuntu, Fedora, Rocky Linux, openSUSE, and Arch Linux. Users can contact the development team through a feedback form to suggest features or report bugs; an email is required only to receive a response. The downloadable editor is listed at free.