# SpringSound vs Compositor NTP

The clearest difference is update cadence: Compositor NTP at every 2 months against SpringSound's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

SpringSound costs $2.99 and Compositor NTP $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SpringSound ships an update every 9 months, Compositor NTP every 2 months. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SpringSound | Compositor NTP |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[4.2 (19 ratings)](https://appshunter.io/ios/app/springsound/id866583243/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 73.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 30 MB | 4 MB |
| Requires iOS | **15.6** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christophe Duquesne](https://appshunter.io/developer/647714834) | [Ruslan Yusipov](https://appshunter.io/developer/1598799633) |

## What reviewers say

### SpringSound

[App page](https://appshunter.io/ios/app/springsound/id866583243)

This app is a physical-modeling audio synthesizer that simulates sound through the interaction of springs, masses, and activators. It offers detailed control over various physical parameters and comes with a large library of presets. It can be used as a sound generator or effect, and supports MIDI and expressive controllers.

**Highlights:** Physical modeling sound synthesis, Detailed control of physical parameters, Large set of sound presets, Audio-In effect capability, MIDI and MPE support, iOS Continuum Remote integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Compositor NTP

[App page](https://appshunter.io/ios/app/compositor-ntp/id6450834018)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SpringSound free?

SpringSound costs $2.99, with no in-app purchases.

### Is Compositor NTP free?

Compositor NTP costs $2.99, with no in-app purchases.

### Do SpringSound or Compositor NTP have ads?

Neither SpringSound nor Compositor NTP shows ads.

### Which is updated more often, SpringSound or Compositor NTP?

SpringSound ships an update every 9 months, and Compositor NTP every 2 months. Most recently, SpringSound was updated on October 12, 2026 and Compositor NTP on October 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.*