# PhaseRings vs PD1

The clearest difference is price: PhaseRings at Free against PD1's $3.99. PD1's advantage is update cadence (every 6 days vs every 5 months) and review sentiment (100% vs 80%). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

PhaseRings is free to download; PD1 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PhaseRings ships an update every 5 months, PD1 every 6 days. The most recent releases landed on July 7, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PhaseRings | PD1 |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.4 (16 ratings)](https://appshunter.io/ios/app/phaserings/id924795988/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 days** |
| Monetization | **Free** | Paid |
| Size | 6 MB | 10 MB |
| Requires iOS | **16.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Charles Martin](https://appshunter.io/developer/560849533) | [Pedro Yamada](https://appshunter.io/developer/1604183940) |

## What reviewers say

### PhaseRings

[App page](https://appshunter.io/ios/app/phaserings/id924795988)

Create expressive music with intuitive touch gestures. Explore various sound schemes and generative composition tools to craft unique musical pieces. Supports MIDI and Audiobus for advanced integration.

**Highlights:** Expressive touch gesture music creation, Seven unique sound schemes, Generative composition engine, Customizable pitch compositions, Core MIDI support, AudioBus and Inter-App Audio support

**Features:** macOS Compatibility

**In-app purchases:** none


### PD1

[App page](https://appshunter.io/ios/app/pd1-analog-delay/id6450869337)

This app simulates classic analog delay pedals, offering a meaner grit with a ladder filter and random delay-line noise. It's an audio-unit effect designed for musicians seeking unique delay sounds.

**Highlights:** Analog delay simulation, Ladder filter for meaner grit, Random delay-line noise, Audio-unit effect plugin, Classic pedal sound recreation

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PhaseRings free?

PhaseRings is free to download, with no in-app purchases.

### Is PD1 free?

PD1 costs $3.99, with no in-app purchases.

### Do PhaseRings or PD1 have ads?

Neither PhaseRings nor PD1 shows ads.

### Which is updated more often, PhaseRings or PD1?

PhaseRings ships an update every 5 months, and PD1 every 6 days. Most recently, PhaseRings was updated on July 7, 2026 and PD1 on September 10, 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.*