Comparison

Audio Function Generator vs TapWidget

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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)
Features
Read 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

About

TapWidget

This utility app allows users to measure and fine-tune tapping tempos directly from their device's lock screen using a notification center widget. It provides visual and auditory feedback to match specific song tempos with high accuracy.

Highlights
  • QuickTap widget in Notification Center
  • Start tapping from lock screen
  • Display current tapping tempo
  • Visual and auditory tempo feedback
  • Fine-tune tempo by sliding
  • Match specific song tempos accurately
Features
Read full description

TapWidget features the QuickTap widget in Notification Center, so you can start tapping right from the lock screen. The widget and app show at which tempo you are tapping. As soon as you stop tapping, TapWidget keeps flashing and/or clicking in the same tempo. In the app, this tempo can then be fine-tuned by sliding across the bottom section of the screen. This allows you to match a specific tempo of a song much more accurately than only tapping along.

Screenshots

Audio Function Generator4 screens
TapWidget2 screens

Verdict

The call

The clearest difference is in-app purchases: TapWidget at none against Audio Function Generator's 1. TapWidget also leads on update cadence (every 3 days vs every 6 weeks) and review sentiment (100% vs 77%). Audio Function Generator's advantage is ratings volume (2.2K vs 5). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Audio Function Generator sells 1 one-off in-app purchase. TapWidget asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

TapWidget 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 5, 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 TapWidget's.

UpkeepUpdate frequency

Audio Function Generator ships an update every 6 weeks, TapWidget every 3 days. The most recent releases landed on September 29, 2026 and June 11, 2026 respectively.

Scorecard7 real differences · 3 level
Audio Function Generator versus TapWidget: the parameters behind the verdict, then further details
ParameterAudio Function GeneratorTapWidget
PriceFreeFree
Rating4.7 (2.2K ratings)5.0 (5 ratings) — better
Positive reviews77.1% of reviews100.0% of reviews — better
Number of ratings2.2K — better5
Update frequencyEvery 6 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.58.0 — better
Further details — not scored
Size14 MB12 MB
Age rating4+4+
DeveloperThomas GruberOscar Bouwmans

Customer experience

Audio Function Generator

All ratings2,191 ratings
Positive91.8%
Neutral3.1%
Negative5.1%
Written reviews271 reviews
Positive77.1%
Neutral6.3%
Negative16.6%

TapWidget

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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 more
  • Improve accessibility (VoiceOver support)

TapWidget

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Audio Function Generator

One-time1
  • Upgrade to PRO$9.99
None

TapWidget

No in-app purchases

Questions

Is Audio Function Generator free?
Audio Function Generator is free to download, with in-app purchases available.
Is TapWidget free?
TapWidget is free to download, with no in-app purchases.
Which has better reviews, Audio Function Generator or TapWidget?
TapWidget is rated higher. Audio Function Generator averages 4.7 out of 5 from 2.2K ratings, while TapWidget averages 5.0 from 5 ratings.
Do Audio Function Generator or TapWidget have ads?
Neither Audio Function Generator nor TapWidget shows ads.
Which is updated more often, Audio Function Generator or TapWidget?
Audio Function Generator ships an update every 6 weeks, and TapWidget every 3 days. Most recently, Audio Function Generator was updated on September 29, 2026 and TapWidget on June 11, 2026.

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