Comparison

Audio Function Generator vs iWoofer Pro

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

iWoofer Pro

Control your wireless subwoofer's DSP functions with this app. It offers low-latency, pro-grade room correction without needing an external microphone. The system features an open hardware design for flexible integration.

Highlights
  • Wireless subwoofer DSP control
  • Intuitive DSP function management
  • Low latency FIR/IIR filtering
  • Pro-grade minimum phase FIR room correction
  • No external microphone required
  • Open hardware design
Features
Read full description

The iWoofer Pro is a wireless subwoofer DSP control system with opened hardware design. The app allows control plenty of DSP functions in an intuitive manner. Low latency (2.5mS FIR + 2.5mS IIR filtering and ADC/DAC = 5mS total) pro grade minimum phase FIR room correction algorithm. No external mic required.

Screenshots

Audio Function Generator4 screens
iWoofer Pro4 screens

Verdict

The call

The clearest difference is price: Audio Function Generator at Free against iWoofer Pro's $4.99. Audio Function Generator also leads on rating (4.7 vs 2.7) and ratings volume (2.2K vs 13). iWoofer Pro's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 15.5). On 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

Audio Function Generator is free to download; iWoofer Pro costs $4.99 up front. Audio Function Generator sells 1 one-off in-app purchase. iWoofer Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Audio Function Generator holds the better App Store score, 4.7 against 2.7. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 13, 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 54% of iWoofer Pro's.

UpkeepUpdate frequency

Audio Function Generator ships an update every 6 weeks, iWoofer Pro every 6 months. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

Scorecard8 real differences · 2 level
Audio Function Generator versus iWoofer Pro: the parameters behind the verdict, then further details
ParameterAudio Function GeneratoriWoofer Pro
PriceFree — better$4.99
Rating4.7 (2.2K ratings) — better2.7 (13 ratings)
Positive reviews77.1% of reviews — better53.8% of reviews
Number of ratings2.2K — better13
Update frequencyEvery 6 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.511.0 — better
Further details — not scored
Size14 MB1 MB
Age rating4+4+
DeveloperThomas GruberARTEM KHLYUPIN

Customer experience

Audio Function Generator

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

iWoofer Pro

All ratings13 ratings
Positive38.5%
Neutral0.0%
Negative61.5%
Written reviews13 reviews
Positive53.8%
Neutral0.0%
Negative46.2%

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)

iWoofer Pro

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

iWoofer Pro

No in-app purchases

Questions

Is Audio Function Generator free?
Audio Function Generator is free to download, with in-app purchases available.
Is iWoofer Pro free?
iWoofer Pro costs $4.99, with no in-app purchases.
Which has better reviews, Audio Function Generator or iWoofer Pro?
Audio Function Generator is rated higher. Audio Function Generator averages 4.7 out of 5 from 2.2K ratings, while iWoofer Pro averages 2.7 from 13 ratings.
Do Audio Function Generator or iWoofer Pro have ads?
Neither Audio Function Generator nor iWoofer Pro shows ads.
Which is updated more often, Audio Function Generator or iWoofer Pro?
Audio Function Generator ships an update every 6 weeks, and iWoofer Pro every 6 months. Most recently, Audio Function Generator was updated on September 24, 2026 and iWoofer Pro on September 8, 2026.

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