Audio Function Generator vs SoundBox
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)
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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
SoundBox
This app offers a vast and ever-growing library of sound effects and ambient tracks for creative projects or personal enjoyment. Users can browse, download, and even create their own custom sound snippets with various editing tools. It's designed for anyone looking to enhance audio content or simply have fun with sound.
- Vast cloud-based audio library
- Create custom sound snippets
- Import audio from cloud storage
- Monthly library updates
- Theme colors for tracks
- Free unlimited audio downloads
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SoundBox is the world’s best soundboard app. It is easy to use, packed with awesome sounds — and a whole lot of fun! Whether you are looking for pre-recorded special sound effects or want to create your own sound snippets, SoundBox is your go-to tool. Best of all, the SoundBox audio collection is ever-growing and 100% customizable! WHY GET SOUNDBOX? • Are you a songwriter, a sound engineer, or simply someone who loves exploring and playing with different sounds? • Do you need original sound effects for your podcast or YouTube channel? • Are you into creating your very own custom memes or ringtones? • Looking to create your next awesome beach mix for your upcoming vacation? • Or are you just looking for a fun and easy way to spice up your conversations with friends and family? In either case, SoundBox is your one-stop-shop for high-quality audio files. Sample the world with audio tracks such as: • Wildlife - Everything from lonely whales to singing coqui frogs - we've got you covered! • Ambience tracks - from white noise to brown noise, from torrential downpours deep in the Amazon, to the beating heart of urban jungles. • Nostalgic Sounds - floppy disks and dial-up internet - jog your childhood memories and feel like a kid again with great audio tracks such as these! • Extreme Sounds - from the mysterious sounds in the depths of the Southern Ocean to whistler waves in the magnetosphere - we can make it happen! … and so much more — SoundBox will soon have just about every sound under the sun! THE SOUNDBOX AUDIO LIBRARY SoundBox’s signature feature is the SoundBox Audio Library, which is updated monthly with new and exciting sound effects. This way, you can be sure that SoundBox will never get old, dull, or repetitive. Best of all, the SoundBox Audio Library is 100% cloud-based and does not take up any of your storage space. HOW TO USE SOUNDBOX Browse Browse through and explore the ever-growing sound collections in the SoundBox Audio Library. You will quickly see that you are truly spoiled for choice! Download To download and use any audio file, simply import it from the SoundBox Audio Library to your mobile device. Import You can also import and customize files from your iTunes library, iCloud Drive, DropBox, Google Drive, and more. Create If you are in a creative mood, you can make your own live audio recording and jazz it up with special sound effects. You can add sound loops and fade-outs, choose to play a specified range, and more — the only limit is your imagination! What’s more, you can duplicate and play back different segments of any track on your board. Enjoy Endless fun, creativity, and new discoveries: the world of sound has so much to offer. SoundBox is the perfect tool to start your audio exploration. KEY FEATURES • Various theme colors - color code your tracks for an instant visual of your soundboard setup! • Countless special sound effects • Free unlimited audio downloads • Cloud-based audio library updated monthly • Make your own custom soundboards • Import files directly from your iTunes library, iCloud Drive, DropBox, Google Drive, and more • Create your own live audio recordings and customize them using special effects SoundBox Pro is available by watching rewarded ads, or with an auto-renewing subscription for $2.99 / Month. Terms of Use: https://trizilabs.com/terms-of-use/ Credits: Screenshot assistance by: previewed.app
Screenshots
Verdict
The clearest difference is rating: Audio Function Generator at 4.7 against SoundBox's 3.9. Audio Function Generator also leads on ratings volume (2.2K vs 29). SoundBox's advantage is update cadence (every 3 days vs every 6 weeks) and iOS requirement (13.2 vs 16.0). On price, review sentiment, ads and in-app purchases 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 SoundBox sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Audio Function Generator holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: Audio Function Generator has 2.2K ratings behind it against 29, 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 70% of SoundBox's.
Audio Function Generator ships an update every 6 weeks, SoundBox every 3 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Audio Function Generator | SoundBox |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.2K ratings) — better | 3.9 (29 ratings) |
| Positive reviews | 77.2% of reviews — better | 70.0% of reviews |
| Number of ratings | 2.2K — better | 29 |
| Update frequency | Every 6 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.2 — better |
| Further details — not scored | ||
| Size | 13 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Gruber | Trizi Labs, LLC |
Customer experience
Audio Function Generator
SoundBox
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
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- Improve accessibility (VoiceOver support)
SoundBox
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Audio Function Generator
- Upgrade to PRO$14.99
SoundBox
- SoundBox Pro$2.991 Month
Questions
Is Audio Function Generator free?
Is SoundBox free?
Which has better reviews, Audio Function Generator or SoundBox?
Do Audio Function Generator or SoundBox have ads?
Which is updated more often, Audio Function Generator or SoundBox?
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