Audio Function Generator
Thomas Gruber Utilities iPhoneiPadiPod touch
Audio Function Generator is a free Utilities app for iPhone and iPad by Thomas Gruber. Rated 4.7/5 from 2,207 ratings. Requires iOS 15.5.
- Rating
- 4.7
- 2.2K ratings
- Price
- Free
- on the App Store
- Size
- 14 MB
- Age 4+
- Updated
- Sep 2
- 2026 · v9.3.0
Screenshots
About Audio Function Generator
This is the highly recommended and praised Function Generator App - an amazingly great and powerful tone generator. Enriched with a vast amount of features yet it is extremely intuitive and designed for simplicity. Get to know this great App now! It is very well maintained and has received considerable upgrades over the past years. So, … what can you do with this App? • PLAY TEST TONES Sine, Rectangular, Triangular and Sawtooth. • PLAY FREQUENCY SWEEP TEST TONES in both directions (minimum to maximum frequency and maximum to minimum frequency). • PLAY VOLUME SWEEPS (from minimum to maximum volume). • Try the SWEEP REPEAT / WOBBLE function. • Try the MUSIC TONES PLAYBACK. • Experiment with the huge FINE TUNE SELECTON, PRESETS SELECTION! • Or create your own CUSTOM PRESETS! • And SAVE an endless amount of CONFIGURATIONS (Frequency, Sweep, Noise) for later quick access and direct playback function. • Even play back different kinds of NOISE – White, Pink, Violet, Grey, Brown, Blue is also supported. The Function Generator is AMAZINGLY INTUITIVE and SIMPLE to use! AND THESE ARE THE ADVANCED SETTINGS/FEATURES (upgrade to PRO required): => Extending The Frequency Range (1Hz - 21kHz) => Extending The Sweep Times (0.1s - 600s) => Changing Min/Max Slider Frequency Ranges => Changing Max Sweep Time Slider Range => Changing Signal Amplitude => Enabling Of The Sweep Repeat / Wobble Function => Frequency Slider Setting to Linear or Logarithmic => Left/Right Channel Individual Selection => Permanently Saving Custom Presets => Saving Of Endless Number Of Audio Configurations => Phase Out Setting (custom phase shift of the generated signal) => BPM (Beats per Minute) Feature => Dual Function Generator => MultiTone Generator (playback of up to eight individual tones) => Background Theme Selection (Light/Dark) Check out the tutorial page: www.ee-toolkit.com/audio-function-generator
Ratings & reviews
4.7
2.2K ratings
What’s new
Version 9.3.0 · Updated September 2, 2026
User interface improvements for the DualTone generator Sequence Playback (MultiTone) UI optimisations Dark Mode improvements
App privacy
The developer, Thomas Gruber, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Audio Function Generator
Looking for apps like Audio Function Generator? Here are 6 similar apps on the App Store. The highest rated is Frequency Sound Wave Generator (4.8/5), and all 6 are free to download.
-
Noise Generator: Full Spectrum
4.7
-
Tone generator
4.0
-
Frequency: Sound Generator
4.7
-
Frequency Sound Generator App
4.5
-
Frequency Sound Wave Generator
4.8
-
Sonic Pitch Sound Generator
4.5
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Audio Function Generator | 4.7 / 5 (2,207 ratings) | Free | September 2, 2026 | |
| Noise Generator: Full Spectrum | 4.7 / 5 (1,961) | Free | Oct 8, 2026 | Compare |
| Tone generator | 4.0 / 5 (154) | Free | Dec 18, 2023 | Compare |
| Frequency: Sound Generator | 4.7 / 5 (1,113) | Free | Feb 13, 2025 | Compare |
| Frequency Sound Generator App | 4.5 / 5 (5,125) | Free | Apr 14, 2026 | Compare |
| Frequency Sound Wave Generator | 4.8 / 5 (86) | Free | Sep 5, 2026 | Compare |
| Sonic Pitch Sound Generator | 4.5 / 5 (1,902) | Free | Apr 15, 2026 | Compare |