# FAC Chorus vs StringLab

The clearest difference is review sentiment: FAC Chorus at 95% against StringLab's 57%. FAC Chorus also leads on price ($6.99 vs $14.99) and rating (4.8 vs 4.3). StringLab's advantage is in-app purchases (none vs 3) and update cadence (every 10 days vs every 5 months). On ads and device support there is nothing between them.

FAC Chorus costs $6.99 and StringLab $14.99 up front. FAC Chorus sells 3 one-off in-app purchases. StringLab asks for nothing beyond the download.

FAC Chorus holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 61 and 14 respectively. Written reviews point the same way: 95% of FAC Chorus's written reviews are positive against 57% of StringLab's.

FAC Chorus ships an update every 5 months, StringLab every 10 days. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | FAC Chorus | StringLab |
| --- | --- | --- |
| Price | **$6.99** | $14.99 |
| Rating | **[4.8 (61 ratings)](https://appshunter.io/ios/app/fac-chorus/id1230164766/reviews)** | [4.3 (14 ratings)](https://appshunter.io/ios/app/stringlab/id6461312318/reviews) |
| Number of ratings | **61** | 14 |
| Positive reviews | **95.0% of reviews** | 57.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 10 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 4 MB | 45 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Frederic Corvest](https://appshunter.io/developer/1230164765) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### FAC Chorus

[App page](https://appshunter.io/ios/app/fac-chorus/id1230164766)

This app delivers an authentic, lush, and organic chorus effect with analog-style circuitry. It offers versatile modulation, from subtle doubling to rich swirling sounds, and can function as a chorus, flanger, or vibrato. Expanded controls and feedback options provide deep sonic shaping for professional music production.

**Highlights:** Authentic analog-style bucket brigade circuitry, Subtle doubling to rich swirling modulation, Chorus, Flanger, or Vibrato modes, Expanded controls with multiple characters, Feedback control for flanger-like textures, AUv3 plugin for iOS, macOS, and Vision Pro

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $14.99 | one-time |


### 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 FAC Chorus free?

FAC Chorus costs $6.99, and also offers in-app purchases.

### Is StringLab free?

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

### Which has better reviews, FAC Chorus or StringLab?

FAC Chorus is rated higher. FAC Chorus averages 4.8 out of 5 from 61 ratings, while StringLab averages 4.3 from 14 ratings.

### Do FAC Chorus or StringLab have ads?

Neither FAC Chorus nor StringLab shows ads.

### Which is updated more often, FAC Chorus or StringLab?

FAC Chorus ships an update every 5 months, and StringLab every 10 days. Most recently, FAC Chorus was updated on September 22, 2026 and StringLab on September 21, 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.*