Audio Function Generator vs DownLow ReBass
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
DownLow ReBass
This audio processing tool rebuilds and enhances the low-end frequencies in MP3s. It offers precise control over bass range and intensity, allowing users to create deeper, cleaner bass without complex software. Ideal for testing audio setups or making music hit harder.
- Rebuilds and enhances low-end frequencies
- Precise control over bass range and intensity
- Simple MP3 import and export
- DSP-based bass replacement
- No complex software needed
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DownLow ReBass is a powerful audio processing tool designed for true bass enthusiasts. It doesn’t just boost bass — it rebuilds it. Using advanced DSP algorithms, DownLow ReBass lets you replace and enhance the low-end frequencies in your MP3s with precise control over the range and intensity. Known to the community as “rebassing,” this process brings out clean, deep bass without muddying your track. No need for complex tools like Audacity or FL Studio — just choose an MP3 from the Files app, set your low and high target frequencies, and adjust your boost level. DownLow ReBass handles the rest automatically. Whether you’re testing a new sub setup or just want your music to hit harder, DownLow ReBass helps you fine-tune your tracks for maximum low-end clarity. Features Dynamic low-end frequency control Clean DSP-based bass replacement Simple file import and export workflow Works directly with MP3 files DownLow ReBass is a one-time purchase — no ads, no subscriptions, and no hidden fees. Please submit feature requests from the About Page.
Screenshots
Verdict
The clearest difference is price: Audio Function Generator at Free against DownLow ReBass's $1.99. Audio Function Generator also leads on review sentiment (77% vs 33%) and rating (4.7 vs 4.0). DownLow ReBass's advantage is in-app purchases (none vs 1) and update cadence (weekly vs every 6 weeks). On ads, device support and iOS requirement 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
Audio Function Generator is free to download; DownLow ReBass costs $1.99 up front. Audio Function Generator sells 1 one-off in-app purchase. DownLow ReBass asks for nothing beyond the download.
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 6, 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 33% of DownLow ReBass's.
Audio Function Generator ships an update every 6 weeks, DownLow ReBass weekly. The most recent releases landed on October 2, 2026 and September 23, 2026 respectively.
| Parameter | Audio Function Generator | DownLow ReBass |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.7 (2.2K ratings) — better | 4.0 (6 ratings) |
| Positive reviews | 77.1% of reviews — better | 33.3% of reviews |
| Number of ratings | 2.2K — better | 6 |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.5 — better | 16 |
| Further details — not scored | ||
| Size | 14 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Gruber | Lane Messer |
Customer experience
Audio Function Generator
DownLow ReBass
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)
DownLow ReBass
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Audio Function Generator
- Upgrade to PRO$9.99
DownLow ReBass
No in-app purchases
Questions
Is Audio Function Generator free?
Is DownLow ReBass free?
Which has better reviews, Audio Function Generator or DownLow ReBass?
Do Audio Function Generator or DownLow ReBass have ads?
Which is updated more often, Audio Function Generator or DownLow ReBass?
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