# Envau vs StringLab

The clearest difference is price: Envau at Free against StringLab's $14.99. StringLab's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 18.7). On update cadence, ads and device support there is nothing between them.

Envau is free to download; StringLab costs $14.99 up front. Envau sells 2 in-app purchases, starting at $3.99 per month. StringLab asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 10 days. The most recent releases landed on September 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Envau | StringLab |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | — | **[4.3 (14 ratings)](https://appshunter.io/ios/app/stringlab/id6461312318/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | Every 10 days |
| Monetization | — | Paid |
| Size | 27 MB | 45 MB |
| Requires iOS | 18.7 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tim Sandgren](https://appshunter.io/developer/1202922994) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### Envau

[App page](https://appshunter.io/ios/app/envau/id1202922995)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $3.99 | per month |
| All Access | $14.99 | per year |


### StringLab

[App page](https://appshunter.io/ios/app/stringlab/id6461312318)

This app is a digital synthesizer that uses physical string modeling to recreate the sounds of various instruments, particularly plucked or hammered strings. It allows users to explore acoustic physics and create unique instrument textures through extensive parameter experimentation.

**Highlights:** Karplus-Strong physical modeling, Exciter Impact and Noise modes, Resonator objects with feedback, Frequency Dispersion support, External live input, Preset randomizer and manager, Drag & Drop preset export

**In-app purchases:** none


## Frequently asked questions

### Is Envau free?

Envau is free to download, with in-app purchases available.

### Is StringLab free?

StringLab costs $14.99, with no in-app purchases.

### Do Envau or StringLab have ads?

Neither Envau nor StringLab shows ads.

### Which is updated more often, Envau or StringLab?

Envau ships an update every 10 days, and StringLab every 10 days. Most recently, Envau was updated on September 24, 2026 and StringLab on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*