# Quantum Sequencer vs 7XDXFM 4OP FM Loop Maker

The clearest difference is rating: Quantum Sequencer at 4.6 against 7XDXFM 4OP FM Loop Maker's 4.0. Quantum Sequencer also leads on review sentiment (69% vs 50%) and ratings volume (35 vs 6). 7XDXFM 4OP FM Loop Maker's advantage is update cadence (every 5 days vs every 6 weeks) and price ($1.99 vs $7.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Quantum Sequencer costs $7.99 and 7XDXFM 4OP FM Loop Maker $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Quantum Sequencer holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Quantum Sequencer has 35 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 69% of Quantum Sequencer's written reviews are positive against 50% of 7XDXFM 4OP FM Loop Maker's.

Quantum Sequencer ships an update every 6 weeks, 7XDXFM 4OP FM Loop Maker every 5 days. The most recent releases landed on November 2, 2026 and November 14, 2026 respectively.

## The numbers

| Metric | Quantum Sequencer | 7XDXFM 4OP FM Loop Maker |
| --- | --- | --- |
| Price | $7.99 | **$1.99** |
| Rating | **[4.6 (35 ratings)](https://appshunter.io/ios/app/quantum-sequencer/id1207932898/reviews)** | [4.0 (6 ratings)](https://appshunter.io/ios/app/7xdxfm-4op-fm-loop-maker/id1589435250/reviews) |
| Number of ratings | **35** | 6 |
| Positive reviews | **68.8% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Paid | Paid |
| Size | 191 MB | 14 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [anthony saunders](https://appshunter.io/developer/460303742) | [Rob Wilmot](https://appshunter.io/developer/520672432) |

## What reviewers say

### Quantum Sequencer

[App page](https://appshunter.io/ios/app/quantum-sequencer/id1207932898)

This app offers an interactive approach to music composition, focusing on detailed steps that can be arranged into looping sequences. It provides extensive control over note parameters and allows for real-time manipulation and experimentation.

**Highlights:** Interactive step-focused composition, Detailed step notation (probability, ornamentation), Configurable sequence lengths and sub-sequences, 16 general faders for parameter editing, MIDI learnable faders, Programmable loop actions, Per-sequence MIDI FX, devices, and controllers

**In-app purchases:** none


### 7XDXFM 4OP FM Loop Maker

[App page](https://appshunter.io/ios/app/7xdxfm-4op-fm-loop-maker/id1589435250)

Create complex FM synthesizer sounds and sequences with this 7-track music production tool. Features include LFO modulation, piano roll editing, and built-in effects like echo and reverb. Sync with other apps via Ableton Link or MIDI, and export your creations.

**Highlights:** 4 operator FM synthesizer, 7-track sequencer, LFO modulation, Piano roll editing, Echo and reverb effects, Ableton Link and MIDI sync, Audio export

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Quantum Sequencer free?

Quantum Sequencer costs $7.99, with no in-app purchases.

### Is 7XDXFM 4OP FM Loop Maker free?

7XDXFM 4OP FM Loop Maker costs $1.99, with no in-app purchases.

### Which has better reviews, Quantum Sequencer or 7XDXFM 4OP FM Loop Maker?

Quantum Sequencer is rated higher. Quantum Sequencer averages 4.6 out of 5 from 35 ratings, while 7XDXFM 4OP FM Loop Maker averages 4.0 from 6 ratings.

### Do Quantum Sequencer or 7XDXFM 4OP FM Loop Maker have ads?

Neither Quantum Sequencer nor 7XDXFM 4OP FM Loop Maker shows ads.

### Which is updated more often, Quantum Sequencer or 7XDXFM 4OP FM Loop Maker?

Quantum Sequencer ships an update every 6 weeks, and 7XDXFM 4OP FM Loop Maker every 5 days. Most recently, Quantum Sequencer was updated on November 2, 2026 and 7XDXFM 4OP FM Loop Maker on November 14, 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.*