World Launcher


Android 3d

Build your Android user interface in real 3d by placing building blocks and app blocks and navigate your world!

Android app on Google Play

iPhone Synthesizer


Turns your iPhone or iPod into a groovy synth, based on additive, subtractive and fm sound synthesis featuring

  • 5 main oscillators
  • frequency modulation
  • low frequency oscillator
  • chorus
  • pitch shift
  • noise
  • distortion
  • cutoff
  • echo
  • bitcrusher
  • ADSR envelopes
  • presets
  • wave shape view
  • connect to your mixer, Mac or PC over sound jacks
  • setup as real instrument in GarageBand for creating songs or ring tones

We recommend to use quality stereo speakers or earphones.

How are you going to sound today?

▸ Download User Manual

Stefan Welebny





Sound Analyzer.

Displays Sound Spectrum (FFT) and Cepstrum with adjustable Lifter.

Android app on Google Play




Play a note on your guitar, let Tuner detect the pitch and see where you are on the scale. Tunes your guitar or other musical instrument which can sustain a tone.

Android app on Google Play




more Apps...

  • Guitar Tuner
  • SoundPad
  • Galaxy
  • Bat Sonar
  • Doppler Speed
  • Down Under
  • 2 Self
  • Position Report
  • Tracker
  • ...

Stefan Welebny

Welebny Software   |   Mag. Stefan Welebny   |   Flötzerweg 17, 4030 Linz, Austria   |  Tel.: +43-7224-4111, Fax: +43-7224-4113