Audio Function Generator vs Frequency Sound 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
Frequency Sound Generator
Create a wide variety of sounds and signals with this easy-to-use wave form sound generator. Dynamically adjust sound signals in real time with multiple oscillators, wave forms, and precise frequency controls.
- 3 oscillators
- Multiple wave forms per oscillator
- Accurate frequency selector
- Real-time controls
- Volume and modulation control
- Save and load sounds
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Frequency Sound Generator is a simple wave form sound generator and oscillator. It is easy to use tool so you can create high variety of sounds and signals in just few seconds. All controls are in real time so you can dynamically change the sound signals. Frequency Sound Generator features: - 3 oscillators - every oscillator can generate 3 wave forms - accurate frequency selector with fast and slow controls - volume control - wave signal modulation control - CD audio - 16 bit PCM encoding / Sampling rate at 44100Hz - oscillator range is from0.1Hz to 20KHz - 2 speed frequency selector - save and load sounds
Screenshots
Verdict
The clearest difference is price: Audio Function Generator at Free against Frequency Sound Generator's $0.99. Audio Function Generator also leads on ratings volume (2.2K vs 53) and review sentiment (77% vs 61%). Frequency Sound Generator's advantage is in-app purchases (none vs 1) and iOS requirement (9.0 vs 15.5). On rating, update cadence, ads and device support 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
Audio Function Generator is free to download; Frequency Sound Generator costs $0.99 up front. Audio Function Generator sells 1 one-off in-app purchase. Frequency Sound Generator asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Audio Function Generator against 4.6 for Frequency Sound Generator. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 53, 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 61% of Frequency Sound Generator's.
Audio Function Generator ships an update every 6 weeks, Frequency Sound Generator every 2 months. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.
| Parameter | Audio Function Generator | Frequency Sound Generator |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.7 (2.2K ratings) — better | 4.6 (53 ratings) |
| Positive reviews | 77.1% of reviews — better | 60.7% of reviews |
| Number of ratings | 2.2K — better | 53 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 9.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Gruber | Aleksandar Mlazev |
Customer experience
Audio Function Generator
Frequency Sound 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)
Frequency Sound Generator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Audio Function Generator
- Upgrade to PRO$9.99
Frequency Sound Generator
No in-app purchases
Questions
Is Audio Function Generator free?
Is Frequency Sound Generator free?
Which has better reviews, Audio Function Generator or Frequency Sound Generator?
Do Audio Function Generator or Frequency Sound Generator have ads?
Which is updated more often, Audio Function Generator or Frequency Sound Generator?
Other comparisons
