Comparison

Audio Function Generator vs RewindClock

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

RewindClock

Features
Read full description

A Different Way to See Time Watching the hands of REWIND turn counter-clockwise isn't about checking the hour; it’s about a moment of detachment. It serves as a gentle reminder to breathe, to reflect, and to find calm in a world that never stops moving. Key Features: • Reverse Rotation: Experience the unique, meditative flow of time moving counter-clockwise. • Home Screen Widgets: Keep a piece of tranquility on your home screen. Fully supports iOS widgets with your custom configurations. • Zen Mode: Tap the clock face to hide the UI. Perfect for focus, meditation, or as a beautiful bedside companion. • Ritualistic Design: Immersive backgrounds with ultra-thin material textures and fluid 60 FPS mechanical animations. • Time Zone Exploration: Easily track different time zones with a unique, tactile ruler interface. • Personalized Style: Choose between Minimalist and Traditional dials, and multiple face styles (Auto Day/Night, Transparent Light/Dark). Simple & Private REWIND is a passion project. It is completely free, contains no ads, and requires no account. Your data stays on your device, exactly where it belongs.

Screenshots

Audio Function Generator4 screens
RewindClock4 screens

Verdict

The call

The clearest difference is in-app purchases: RewindClock at none against Audio Function Generator's 1. Audio Function Generator's advantage is iOS requirement (15.5 vs 18.6). 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. RewindClock asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Audio Function Generator versus RewindClock: the parameters behind the verdict, then further details
ParameterAudio Function GeneratorRewindClock
PriceFreeFree
Rating4.7 (2.2K ratings) — better—
Positive reviews77.1% of reviews—
Number of ratings2.2K — better—
Update frequencyEvery 6 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.5 — better18.6
Further details — not scored
Size14 MB1 MB
Age rating4+4+
DeveloperThomas Gruber春旭 左

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)

RewindClock

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

RewindClock

No in-app purchases

Questions

Is Audio Function Generator free?
Audio Function Generator is free to download, with in-app purchases available.
Is RewindClock free?
RewindClock is free to download, with no in-app purchases.
Do Audio Function Generator or RewindClock have ads?
Neither Audio Function Generator nor RewindClock shows ads.

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