# Quantum Sequencer vs ab Phaser X

The clearest difference is rating: ab Phaser X at 5.0 against Quantum Sequencer's 4.6. ab Phaser X also leads on price ($5.99 vs $7.99). Quantum Sequencer's advantage is update cadence (every 6 weeks vs every 11 months) and ratings volume (35 vs 5). On ads, in-app purchases, monetization model and device support there is nothing between them.

Quantum Sequencer costs $7.99 and ab Phaser X $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ab Phaser X holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Quantum Sequencer has 35 ratings behind it against 5, so its average is the more settled of the two.

Quantum Sequencer ships an update every 6 weeks, ab Phaser X every 11 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Quantum Sequencer | ab Phaser X |
| --- | --- | --- |
| Price | $7.99 | **$5.99** |
| Rating | [4.6 (35 ratings)](https://appshunter.io/ios/app/quantum-sequencer/id1207932898/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ab-phaser-x/id6469461420/reviews)** |
| Number of ratings | **35** | 5 |
| Positive reviews | 68.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 11 months |
| Monetization | Paid | Paid |
| Size | 191 MB | 8 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [anthony saunders](https://appshunter.io/developer/460303742) | [Alejandro Cabrera Zuniga](https://appshunter.io/developer/1660382836) |

## 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


### ab Phaser X

[App page](https://appshunter.io/ios/app/ab-phaser-x/id6469461420)

This music app offers a versatile phase modulator with 2 to 12 stages. Customize sweeps with controls for rate, depth, frequency, and feedback. Adjust loudness and blend for your final sound.

**Highlights:** 2 to 12 stage phase modulation, Rate control (DAW sync or 0.001Hz-10Hz), Depth, Frequency, and Feedback controls, Gain and Mix controls for loudness and blend

**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 ab Phaser X free?

ab Phaser X costs $5.99, with no in-app purchases.

### Which has better reviews, Quantum Sequencer or ab Phaser X?

ab Phaser X is rated higher. Quantum Sequencer averages 4.6 out of 5 from 35 ratings, while ab Phaser X averages 5.0 from 5 ratings.

### Do Quantum Sequencer or ab Phaser X have ads?

Neither Quantum Sequencer nor ab Phaser X shows ads.

### Which is updated more often, Quantum Sequencer or ab Phaser X?

Quantum Sequencer ships an update every 6 weeks, and ab Phaser X every 11 months. Most recently, Quantum Sequencer was updated on November 2, 2026 and ab Phaser X on November 3, 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.*