Audio Function Generator vs Tone Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Audio Function Generator
Generate various audio test tones, including sine, square, triangle, and sawtooth waves. Explore frequency and volume sweeps, noise generation, and custom preset creation. Advanced features like extended frequency ranges and multi-tone playback are available with an upgrade.
- Generate sine, square, triangle, and sawtooth tones
- Frequency and volume sweep generation
- Noise generation (white, pink, violet, etc.)
- Custom preset creation and saving
- Extended frequency range (PRO feature)
- Multi-tone playback (PRO feature)
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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
Tone Generator
Generate various audio tones like sine, square, sawtooth, and triangle waves across a wide frequency range. Adjust frequencies by swiping and utilize built-in features for fun hearing tests or to clean your device's speaker.
- Sine, square, sawtooth, triangle wave generation
- Adjustable frequency via swipe
- Built-in hearing test sweep
- Speaker cleaning function
- Large frequency range
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Tone Generator generates sine, square, sawtooth and triangle tone at a large frequency range. Frequency of the tones can be adjusted by swiping up or down on the screen. Tone Generator has a built-in feature to quickly sweep frequency of a sine tone to test your hearing. This feature is purely for fun and should not be used for any diagnostics. Tone Generator can also help remove dust and water from device's speakerphone by playing tones at various frequencies.
Screenshots
Verdict
The clearest difference is ads: Audio Function Generator at none against Tone Generator's shown. Audio Function Generator also leads on update cadence (every 6 weeks vs every 4 months) and ratings volume (2.2K vs 138). On price, rating, review sentiment and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Audio Function Generator sells 1 one-off in-app purchase and Tone Generator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Audio Function Generator against 4.8 for Tone Generator. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 138, so its average is the more settled of the two. Written reviews are what separate them: 77% of Audio Function Generator's written reviews are positive against 84% of Tone Generator's.
Audio Function Generator ships an update every 6 weeks, Tone Generator every 4 months. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | Audio Function Generator | Tone Generator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.2K ratings) | 4.8 (138 ratings) — better |
| Positive reviews | 77.1% of reviews | 83.7% of reviews — better |
| Number of ratings | 2.2K — better | 138 |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 16.0 |
| Further details — not scored | ||
| Size | 14 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Gruber | Tevfik Yucek |
Customer experience
Audio Function Generator
Tone Generator
Bugs and requests
Audio Function Generator
Reported bugs
4 issues- Crashes on launch
- Volume slider issues
- Airplay not working
- Sound distortion when display is active
Requested features
6 requests- Add download/save feature for custom sounds
- Improve sweep function (continuous mode, better frequency control)
- Add more multi-frequency rows
- Implement 432Hz base frequency option
- Add phase control for noise generators
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- Improve accessibility (VoiceOver support)
Tone Generator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Audio Function Generator
- Upgrade to PRO$9.99
Tone Generator
- Remove Advertisements$2.99
Questions
Is Audio Function Generator free?
Is Tone Generator free?
Which has better reviews, Audio Function Generator or Tone Generator?
Do Audio Function Generator or Tone Generator have ads?
Which is updated more often, Audio Function Generator or Tone Generator?
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