Kirnu Interactive released ButterSynth, a hybrid 6-oscillator wavetable/FM/sample-based AUV3 and standalone synthesizer for iOS with a vast sonic range, from gentle pads to screaming leads and basslines.
Mix any combination of wavetable, FM, sample and granular synthesis engines for one truly massive sound.
For the more advanced users, you’ll love using ButterSynth’s thoughtfully designed interface, incredibly powerful modulation matrix, fully-featured internal FX rack, factory waveform and sample libraries, and almost limitless scope for fun, experimentation and sound design.
For less experienced synth programmers, ButterSynth includes a library of hundreds of ready-to-use presets, sparking your creativity to start making music right away.
More info here: Kirnu Interactive | ButterSynth