# Quantum Sequencer vs PhaseII

The clearest difference is review sentiment: PhaseII at 100% against Quantum Sequencer's 69%. PhaseII also leads on rating (5.0 vs 4.6) and price ($1.99 vs $7.99). Quantum Sequencer's advantage is ratings volume (35 vs 2). On ads, in-app purchases, monetization model and device support there is nothing between them.

Quantum Sequencer costs $7.99 and PhaseII $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PhaseII 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 2, 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 100% of PhaseII's.

Quantum Sequencer ships an update every 6 weeks, PhaseII every 9 days. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Quantum Sequencer | PhaseII |
| --- | --- | --- |
| Price | $7.99 | **$1.99** |
| Rating | [4.6 (35 ratings)](https://appshunter.io/ios/app/quantum-sequencer/id1207932898/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/phaseii/id6751580786/reviews)** |
| Number of ratings | **35** | 2 |
| Positive reviews | 68.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | Paid | Paid |
| Size | 191 MB | 13 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [anthony saunders](https://appshunter.io/developer/460303742) | [Rob Jackson](https://appshunter.io/developer/1072346998) |

## 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


### PhaseII

[App page](https://appshunter.io/ios/app/phaseii/id6751580786)

This audio effect plugin offers a dual stereo phaser with a vintage sound. It allows for independent phasing engines in parallel or series, with selectable modes for subtle to extreme effects. Controls include rate, depth, width, drive, and mix for versatile sound shaping.

**Highlights:** Dual stereo phasing engines, Parallel and series processing modes, Selectable effect modes (subtle to extreme), Adjustable rate, depth, and width, Optional drive for analog warmth, Soft limiting to prevent clipping, Mix control for wet/dry balance

**In-app purchases:** none


## Frequently asked questions

### Is Quantum Sequencer free?

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

### Is PhaseII free?

PhaseII costs $1.99, with no in-app purchases.

### Which has better reviews, Quantum Sequencer or PhaseII?

PhaseII is rated higher. Quantum Sequencer averages 4.6 out of 5 from 35 ratings, while PhaseII averages 5.0 from 2 ratings.

### Do Quantum Sequencer or PhaseII have ads?

Neither Quantum Sequencer nor PhaseII shows ads.

### Which is updated more often, Quantum Sequencer or PhaseII?

Quantum Sequencer ships an update every 6 weeks, and PhaseII every 9 days. Most recently, Quantum Sequencer was updated on September 19, 2026 and PhaseII on September 8, 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.*