# Smoov AUv3 vs StringLab

The clearest difference is price: Smoov AUv3 at $4.99 against StringLab's $14.99. Smoov AUv3 also leads on review sentiment (100% vs 57%) and rating (4.9 vs 4.3). StringLab's advantage is update cadence (every 10 days vs every 21 months). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Smoov AUv3 costs $4.99 and StringLab $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Smoov AUv3 holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 8 and 14 respectively. Written reviews point the same way: 100% of Smoov AUv3's written reviews are positive against 57% of StringLab's.

Smoov AUv3 ships an update every 21 months, StringLab every 10 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Smoov AUv3 | StringLab |
| --- | --- | --- |
| Price | **$4.99** | $14.99 |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/smoov-auv3/id1545474672/reviews)** | [4.3 (14 ratings)](https://appshunter.io/ios/app/stringlab/id6461312318/reviews) |
| Number of ratings | 8 | **14** |
| Positive reviews | **100.0% of reviews** | 57.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 10 days** |
| Monetization | Paid | Paid |
| Size | 6 MB | 45 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Caelum Audio](https://appshunter.io/developer/1463219587) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### Smoov AUv3

[App page](https://appshunter.io/ios/app/smoov-auv3/id1545474672)

This audio processing tool offers a soft, clean, and transparent compression effect for music production. It's inspired by vintage hardware but focuses on modern peak detection for seamless audio blending. Use it to gently tame busy tracks or soften chaotic sounds.

**Highlights:** Soft, clean, transparent compression, Peak detection for quick signal reaction, Program-dependent envelope, AUv3, IAA, and standalone modes, Works with GarageBand and other hosts

**In-app purchases:** none


### 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 Smoov AUv3 free?

Smoov AUv3 costs $4.99, with no in-app purchases.

### Is StringLab free?

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

### Which has better reviews, Smoov AUv3 or StringLab?

Smoov AUv3 is rated higher. Smoov AUv3 averages 4.9 out of 5 from 8 ratings, while StringLab averages 4.3 from 14 ratings.

### Do Smoov AUv3 or StringLab have ads?

Neither Smoov AUv3 nor StringLab shows ads.

### Which is updated more often, Smoov AUv3 or StringLab?

Smoov AUv3 ships an update every 21 months, and StringLab every 10 days. Most recently, Smoov AUv3 was updated on October 15, 2026 and StringLab on October 16, 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.*