# Resonator Audio Unit vs PD1

The clearest difference is update cadence: PD1 at every 6 days against Resonator Audio Unit's every 38 months. Resonator Audio Unit's advantage is price ($2.99 vs $3.99) and iOS requirement (10 vs 17.5). On ads, in-app purchases, monetization model and device support there is nothing between them.

Resonator Audio Unit costs $2.99 and PD1 $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Resonator Audio Unit ships an update every 38 months, PD1 every 6 days. The most recent releases landed on September 6, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Resonator Audio Unit | PD1 |
| --- | --- | --- |
| Price | **$2.99** | $3.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/resonator-audio-unit/id1225597875/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 6 days** |
| Monetization | Paid | Paid |
| Size | 10 MB | 10 MB |
| Requires iOS | **10** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Pedro Yamada](https://appshunter.io/developer/1604183940) |

## What reviewers say

### Resonator Audio Unit

[App page](https://appshunter.io/ios/app/resonator-audio-unit/id1225597875)

This audio effect plugin generates natural resonances to add warmth and fullness to instruments or recordings. It offers controls for acoustic body characteristics and includes an additional reverb effect for standalone use. The app utilizes unique, realistic algorithms for its sound shaping capabilities.

**Highlights:** Natural sounding resonances, Acoustic body thickness and size control, Resonance amount control, Additional reverb effect, Standalone app mode with Efx on/off

**Features:** Vision Pro support

**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 Resonator Audio Unit free?

Resonator Audio Unit costs $2.99, with no in-app purchases.

### Is PD1 free?

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

### Do Resonator Audio Unit or PD1 have ads?

Neither Resonator Audio Unit nor PD1 shows ads.

### Which is updated more often, Resonator Audio Unit or PD1?

Resonator Audio Unit ships an update every 38 months, and PD1 every 6 days. Most recently, Resonator Audio Unit was updated on September 6, 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.*