# strng vs Retrocord

The clearest difference is price: strng at $4.99 against Retrocord's $19.99. strng also leads on iOS requirement (9.0 vs 18.0). Retrocord's advantage is update cadence (every 3 weeks vs every 4 months). On ads, in-app purchases and device support there is nothing between them.

strng costs $4.99 and Retrocord $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

strng ships an update every 4 months, Retrocord every 3 weeks. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | strng | Retrocord |
| --- | --- | --- |
| Price | **$4.99** | $19.99 |
| Rating | **[4.7 (35 ratings)](https://appshunter.io/ios/app/strng/id993782289/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 84.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 4 MB | 5 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Erik Sigth](https://appshunter.io/developer/385275335) | [Rocamr Labs, LLC](https://appshunter.io/developer/1834237385) |

## What reviewers say

### strng

[App page](https://appshunter.io/ios/app/strng/id993782289)

This app generates plucked string sounds using a physical modeling synthesis engine. It offers polyphonic voices, a built-in keyboard, and MIDI control. Shape your sound with delay and resonant filters, and integrate with other music apps.

**Highlights:** Physical modeling string synthesis, 16 voice polyphony, Built-in 25-key keyboard with aftertouch, MIDI controller support (USB/Wi-Fi), Stereo ping-pong delay, Two-channel resonant filter with LFOs, Audiobus, IAA, and AUv3 support

**Features:** Vision Pro support

**In-app purchases:** none


### Retrocord

[App page](https://appshunter.io/ios/app/retrocord/id6762391432)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is strng free?

strng costs $4.99, with no in-app purchases.

### Is Retrocord free?

Retrocord costs $19.99, with no in-app purchases.

### Do strng or Retrocord have ads?

Neither strng nor Retrocord shows ads.

### Which is updated more often, strng or Retrocord?

strng ships an update every 4 months, and Retrocord every 3 weeks. Most recently, strng was updated on October 7, 2026 and Retrocord on October 1, 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.*