iOS apps

Apps for iPhone and iPad — no ads and no on-device personal data collection.

• Bogstavleg

  Danish letter-learning app for children — no ads, no data collection.

• Ear Trainer: Tones & Hz

  Tone and frequency recognition exercises for audio engineers and musicians who want to train their ear.

• RTA 31

  Real-time 1/3-octave analyzer with curve and bar views for live sound.

View web apps →