# 2XB303 Acid Bass Loop Maker vs King Key

The clearest difference is review sentiment: King Key at 100% against 2XB303 Acid Bass Loop Maker's 67%. King Key also leads on rating (4.9 vs 4.7) and price ($1.99 vs $3.99). 2XB303 Acid Bass Loop Maker's advantage is ratings volume (58 vs 15). On ads, in-app purchases, monetization model and device support there is nothing between them.

2XB303 Acid Bass Loop Maker costs $3.99 and King Key $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

King Key holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 58 and 15 respectively. Written reviews point the same way: 67% of 2XB303 Acid Bass Loop Maker's written reviews are positive against 100% of King Key's.

## The numbers

| Metric | 2XB303 Acid Bass Loop Maker | King Key |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | [4.7 (58 ratings)](https://appshunter.io/ios/app/2xb303-acid-bass-loop-maker/id1288067698/reviews) | **[4.9 (15 ratings)](https://appshunter.io/ios/app/king-key/id6504887055/reviews)** |
| Number of ratings | **58** | 15 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Paid | Paid |
| Size | 16 MB | 12 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rob Wilmot](https://appshunter.io/developer/520672432) | [Caelum Audio Ltd](https://appshunter.io/developer/1463219587) |

## What reviewers say

### 2XB303 Acid Bass Loop Maker

[App page](https://appshunter.io/ios/app/2xb303-acid-bass-loop-maker/id1288067698)

Create electro melodies and acid techno basslines with this creative bass synth sequencer. Features live control for triggering sequences and synth pads, random generation, and extensive sound shaping options. Export your audio loops easily.

**Highlights:** Bass synth sequencer, Live control for sequences and pads, Audio loop recording and export, Random sequence generation, Tweakable synth parameters, MIDI and Ableton Link syncing, Global effects: Overdrive, Compression, Echo

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎶 Great sound quality
- 💰 Good value for the price
- 🎧 Fun and enjoyable to use
- 💡 Lots of potential
- ✨ Unique sound

**What reviewers complain about**

- 🎛️ Fiddly knobs
- 🤔 Unintuitive UI
- 📚 Lacks tutorials/instructions
- 🔊 Mixer needs more volume
- 🎶 Metronome not syncing

**Reported bugs**

- No sound on some devices
- Metronome not syncing
- Pattern saving issues
- Crashes in AUM
- App crashes on startup (iPhone X)

**Requested features**

- MIDI output for own synths
- More volume on mixer
- Tutorials for controls
- Save global modifications
- Improved sequencer for easier note entry


### King Key

[App page](https://appshunter.io/ios/app/king-key/id6504887055)

This app provides high-quality one-shot keyboard samples, including vintage typewriters and modern synthesizers. It offers 9 instruments and 11 presets, usable as a standalone instrument or an AUv3 plugin within music production hosts.

**Highlights:** High-quality one-shot keyboard samples, Vintage typewriter and MIDI keyboard sounds, 9 instruments and 11 presets, AUv3 plugin compatibility, Standalone instrument mode, Proprietary high-detailed sampling techniques

**In-app purchases:** none


## Frequently asked questions

### Is 2XB303 Acid Bass Loop Maker free?

2XB303 Acid Bass Loop Maker costs $3.99, with no in-app purchases.

### Is King Key free?

King Key costs $1.99, with no in-app purchases.

### Which has better reviews, 2XB303 Acid Bass Loop Maker or King Key?

King Key is rated higher. 2XB303 Acid Bass Loop Maker averages 4.7 out of 5 from 58 ratings, while King Key averages 4.9 from 15 ratings.

### Do 2XB303 Acid Bass Loop Maker or King Key have ads?

Neither 2XB303 Acid Bass Loop Maker nor King Key shows ads.

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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.*