# Audio Function Generator vs DownLow ReBass

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.

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.

## The numbers

| Metric | Audio Function Generator | DownLow ReBass |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.7 (2.2K ratings)](https://appshunter.io/ios/app/audio-function-generator/id768229610/reviews)** | [4.0 (6 ratings)](https://appshunter.io/ios/app/downlow-rebass/id6754922890/reviews) |
| Number of ratings | **2.2K** | 6 |
| Positive reviews | **77.1% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 14 MB | 1 MB |
| Requires iOS | **15.5** | 16 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Lane Messer](https://appshunter.io/developer/1850940585) |

## What reviewers say

### Audio Function Generator

[App page](https://appshunter.io/ios/app/audio-function-generator/id768229610)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to PRO | $9.99 | one-time |

**What reviewers like**

- 👍 Great app
- 🎶 Helps with Tinnitus
- 💯 Best app I've paid for
- 🔍 Highly recommended
- 🎨 Attention to detail

**What reviewers complain about**

- 🐛 Crashes
- 💰 Deceptive/Money hungry
- 🔒 Basic features paywalled
- 🔒 Limited without paying
- 🔒 Removed functionality to push paid version

**Reported bugs**

- Crashes on launch
- Volume slider issues
- Airplay not working
- Sound distortion when display is active

**Requested features**

- 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


### DownLow ReBass

[App page](https://appshunter.io/ios/app/downlow-rebass/id6754922890)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Audio Function Generator free?

Audio Function Generator is free to download, with in-app purchases available.

### Is DownLow ReBass free?

DownLow ReBass costs $1.99, with no in-app purchases.

### Which has better reviews, Audio Function Generator or DownLow ReBass?

Audio Function Generator is rated higher. Audio Function Generator averages 4.7 out of 5 from 2.2K ratings, while DownLow ReBass averages 4.0 from 6 ratings.

### Do Audio Function Generator or DownLow ReBass have ads?

Neither Audio Function Generator nor DownLow ReBass shows ads.

### Which is updated more often, Audio Function Generator or DownLow ReBass?

Audio Function Generator ships an update every 6 weeks, and DownLow ReBass weekly. Most recently, Audio Function Generator was updated on October 2, 2026 and DownLow ReBass on September 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*