# Quantiloop Pro vs Stringcalculator

The clearest difference is price: Stringcalculator at $2.99 against Quantiloop Pro's $14.99. Quantiloop Pro's advantage is update cadence (every 3 months vs every 16 months) and iOS requirement (12.0 vs 17.6). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Quantiloop Pro costs $14.99 and Stringcalculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Quantiloop Pro ships an update every 3 months, Stringcalculator every 16 months. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Quantiloop Pro | Stringcalculator |
| --- | --- | --- |
| Price | $14.99 | **$2.99** |
| Rating | **[4.9 (201 ratings)](https://appshunter.io/ios/app/quantiloop-pro-live-looper/id1156213359/reviews)** | — |
| Number of ratings | **201** | — |
| Positive reviews | 94.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 16 months |
| Monetization | **Free** | Paid |
| Size | 16 MB | 1 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stephan Marx](https://appshunter.io/developer/1156213358) | [Martin Uhlig](https://appshunter.io/developer/1414861205) |

## What reviewers say

### Quantiloop Pro

[App page](https://appshunter.io/ios/app/quantiloop-pro-live-looper/id1156213359)

This app offers a powerful 4-track live looping experience for musicians. It allows for hands-free control, extensive MIDI integration, and a variety of audio effects to enhance live performances. Create complex layered performances with ease.

**Highlights:** 4-track looping with unlimited overdubs, Hands-free and MIDI foot controller support, Built-in rhythm guide and metronome, Up to 3 simultaneous input and track effects, Ableton Link and MIDI clock synchronization, Multiple quantize and stop modes, Undo/Redo functionality

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🚀 Powerful features
- 🚀 Versatile looping capabilities
- 🚀 Seamless MIDI integration
- 🚀 Excellent value for money

**What reviewers complain about**

- 🐛 Occasional crashes or stability issues
- 🐛 Limited support for older iOS versions
- 🔧 Steep learning curve for advanced features
- 🔧 Lack of export/import options for presets
- 🔧 Desire for more input/track options

**Reported bugs**

- Crashes or freezes on certain devices
- Issues with MIDI sync or connectivity
- Problems with audio routing or effects processing

**Requested features**

- Ability to export/import presets and settings
- Support for more input channels or tracks
- Improved stability and compatibility with older iOS versions
- Addition of a macOS version
- More customization options for the user interface


### Stringcalculator

[App page](https://appshunter.io/ios/app/stringcalculator/id1426367350)

Calculate string properties for various instruments. Determine diameter, tension, and tone based on material, frequency, and scale length. Supports multiple units of measurement.

**Highlights:** Calculate string diameter, tension, and tone, Supports gut, nylgut, carbon, Tynex, and nylon strings, Set custom frequencies, Calculate in cm, mm, or inches, Adjustable scale length

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quantiloop Pro free?

Quantiloop Pro costs $14.99, with no in-app purchases.

### Is Stringcalculator free?

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

### Do Quantiloop Pro or Stringcalculator have ads?

Neither Quantiloop Pro nor Stringcalculator shows ads.

### Which is updated more often, Quantiloop Pro or Stringcalculator?

Quantiloop Pro ships an update every 3 months, and Stringcalculator every 16 months. Most recently, Quantiloop Pro was updated on October 8, 2026 and Stringcalculator on September 30, 2026.

---

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