Audio Function Generator vs White Noise Plus
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)
Read full descriptionHide full description
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
White Noise Plus
This utility app provides a variety of ambient sounds like white, brown, and pink noise to aid relaxation and sleep. It includes customizable features such as a sleep timer, volume fading, and theme options. Integration with Siri Shortcuts and widgets enhances user convenience.
- White, brown, and pink noise generation
- Sleep timer
- Wavy and fading volume control
- Dark/light theme options
- Siri Shortcuts support
- Widget integration
Read full descriptionHide full description
A white, brown, and pink noise player focused on ease-of-use and a calm design. Most features are free - sleep timer - wavy volume - fading volume - dark/light theme - Siri Shortcuts support - widgets Premium unlocks: - nature, fire, and rain - more themes - nightlight
Screenshots
Verdict
The clearest difference is update cadence: Audio Function Generator at every 6 weeks against White Noise Plus's every 15 months. Audio Function Generator also leads on ratings volume (2.2K vs 28) and iOS requirement (16.0 vs 18.6). White Noise Plus's advantage is monetization model (free vs free with in-app purchases) and review sentiment (100% vs 77%). On price, ads, in-app purchases 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
Both are free to download. Audio Function Generator sells 1 one-off in-app purchase and White Noise Plus sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
White Noise Plus holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 77% of Audio Function Generator's written reviews are positive against 100% of White Noise Plus's.
Audio Function Generator ships an update every 6 weeks, White Noise Plus every 15 months. The most recent releases landed on October 17, 2026 and September 17, 2026 respectively.
| Parameter | Audio Function Generator | White Noise Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.2K ratings) | 5.0 (28 ratings) — better |
| Positive reviews | 77.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 2.2K — better | 28 |
| Update frequency | Every 6 weeks — better | Every 15 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 13 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Gruber | David Albers |
Customer experience
Audio Function Generator
White Noise Plus
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
Show 1 moreShow fewer
- Improve accessibility (VoiceOver support)
White Noise Plus
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Audio Function Generator
- Upgrade to PRO$9.99
White Noise Plus
- Premium$3.00
Questions
Is Audio Function Generator free?
Is White Noise Plus free?
Which has better reviews, Audio Function Generator or White Noise Plus?
Do Audio Function Generator or White Noise Plus have ads?
Which is updated more often, Audio Function Generator or White Noise Plus?
Other comparisons
