# shapesynth vs IAP Control

The clearest difference is price: IAP Control at Free against shapesynth's $4.99. shapesynth's advantage is update cadence (every 2 months vs every 9 months) and iOS requirement (9.0 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

IAP Control is free to download; shapesynth costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

shapesynth ships an update every 2 months, IAP Control every 9 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | shapesynth | IAP Control |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.9 (24 ratings)](https://appshunter.io/ios/app/shapesynth/id431097161/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 65.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Paid | — |
| Size | 8 MB | 2 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erik Sigth](https://appshunter.io/developer/385275335) | [Illusonic GmbH](https://appshunter.io/developer/958114228) |

## What reviewers say

### shapesynth

[App page](https://appshunter.io/ios/app/shapesynth/id431097161)

Create unique retro-inspired sounds by drawing oscillator waveforms. This polyphonic synthesizer offers extensive modulation options, built-in effects, and recording capabilities. Seamlessly integrate with other music apps and hardware for a versatile creative experience.

**Highlights:** Draw custom oscillator waveforms, 16-voice polyphony, Arpeggiator and stereo delay, Resonant filter, Parameter modulation via keyboard, MPE, accelerometer, Tape recorder with infinite overdubs, Inter-app audio and AUv3 support

**Features:** Vision Pro support

**In-app purchases:** none


### IAP Control

[App page](https://appshunter.io/ios/app/iap-control/id1455969349)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is shapesynth free?

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

### Is IAP Control free?

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

### Do shapesynth or IAP Control have ads?

Neither shapesynth nor IAP Control shows ads.

### Which is updated more often, shapesynth or IAP Control?

shapesynth ships an update every 2 months, and IAP Control every 9 months. Most recently, shapesynth was updated on November 1, 2026 and IAP Control on October 26, 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.*