Comparison

Audio Function Generator vs AcousticLab

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

AcousticLab

Transform your iOS device into a professional noise measurement tool. Capture precise sound with stereo recording, calibration, and advanced analysis features. Ideal for accurate audio data collection and evaluation.

Highlights
  • Professional stereo recording
  • Precise sound acquisition and analysis
  • Input channel calibration
  • Automatic recording triggers
  • Prerecord function
  • Signal marking and playback
Features
Read full description

AcousticLab is a professional stereo recorder APP developed by ZKXY (a member of BSWA Group). This APP will turn your iOS device into a professional noise measurement device with precise sound acquisition and analysis. The measurement system will fulfill the requirement of IEC and ASTM standards when using an external stereo sound card and precision microphones. The input channels (microphones) can be calibrated with a standard calibrator to get the actual sound level of test signals, and the output channels also can be corrected according to the surrounding environment. - Support mono and stereo recording. - The input channels can be calibrated with standard sound level calibrators or manually input the calibration factor. - Support two kinds of setting to automatically trigger the recording. - Prerecord function ensures every important signal will be capture. - The key position of the signal can be easily marked and playback. - The volume of the two playback channels can be adjusted respectively. Monthly description of audio data package: -FFT analysis of audio data. File format modification (caf/wav). -Subscription cycle: 1 month (continuous monthly products) -Subscription price: $9.99 / month -Unsubscribe: manually open "Settings" of mobile phone, enter "app store", enter "account settings" page, click "subscribe" to unsubscribe manually -Privacy Policy: http://neyue.com.cn/newsshown_7.html -Terms and Conditions: http://neyue.com.cn/newsshown_6.html

Screenshots

Audio Function Generator4 screens
AcousticLab3 screens

Verdict

The call

The clearest difference is rating: Audio Function Generator at 4.7 against AcousticLab's 4.0. Audio Function Generator also leads on ratings volume (2.2K vs 1) and update cadence (every 6 weeks vs every 7 months). AcousticLab's advantage is review sentiment (100% vs 77%). On price, ads, in-app purchases and monetization model 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 and AcousticLab sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Audio Function Generator holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 77% of Audio Function Generator's written reviews are positive against 100% of AcousticLab's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Audio Function Generator ships an update every 6 weeks, AcousticLab every 7 months. The most recent releases landed on September 26, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
Audio Function Generator versus AcousticLab: the parameters behind the verdict, then further details
ParameterAudio Function GeneratorAcousticLab
PriceFreeFree
Rating4.7 (2.2K ratings) — better4.0 (1 ratings)
Positive reviews77.1% of reviews100.0% of reviews — better
Number of ratings2.2K — better1
Update frequencyEvery 6 weeks — betterEvery 7 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.5 — better15.6
Further details — not scored
Size14 MB7 MB
Age rating4+4+
DeveloperThomas GruberZKXY Technology Co., Ltd

Customer experience

Audio Function Generator

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

AcousticLab

All ratings1 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)

AcousticLab

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Audio Function Generator

One-time1
  • Upgrade to PRO$9.99
1 purchases

AcousticLab

Subscriptions1
  • Audio Analysis Set, 1 Month$9.991 Month

Questions

Is Audio Function Generator free?
Audio Function Generator is free to download, with in-app purchases available.
Is AcousticLab free?
AcousticLab is free to download, with in-app purchases available.
Which has better reviews, Audio Function Generator or AcousticLab?
Audio Function Generator is rated higher. Audio Function Generator averages 4.7 out of 5 from 2.2K ratings, while AcousticLab averages 4.0 from 1 ratings.
Do Audio Function Generator or AcousticLab have ads?
Neither Audio Function Generator nor AcousticLab shows ads.
Which is updated more often, Audio Function Generator or AcousticLab?
Audio Function Generator ships an update every 6 weeks, and AcousticLab every 7 months. Most recently, Audio Function Generator was updated on September 26, 2026 and AcousticLab on September 24, 2026.

Other comparisons