# Cality vs Surface Builder

The clearest difference is price: Cality at $6.99 against Surface Builder's $14.99. Surface Builder's advantage is rating (4.7 vs 4.4) and review sentiment (80% vs 67%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Cality costs $6.99 and Surface Builder $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Surface Builder holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 17 and 15 respectively. Written reviews point the same way: 67% of Cality's written reviews are positive against 80% of Surface Builder's.

Cality ships an update every 4 weeks, Surface Builder every 3 weeks. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Cality | Surface Builder |
| --- | --- | --- |
| Price | **$6.99** | $14.99 |
| Rating | [4.4 (17 ratings)](https://appshunter.io/ios/app/cality/id1448694455/reviews) | **[4.7 (15 ratings)](https://appshunter.io/ios/app/surface-builder/id6449735778/reviews)** |
| Number of ratings | **17** | 15 |
| Positive reviews | 66.7% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 1 MB | 32 MB |
| Requires iOS | 15.6 | **13** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pagefall limited](https://appshunter.io/developer/1440149544) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### Cality

[App page](https://appshunter.io/ios/app/cality/id1448694455)

This app is a creative MIDI processor that allows for rhythmic enhancement, controlled chaos, and the addition of new textures. It offers features like pitch quantization, probability gates, and a cloud module for generating additional notes.

**Highlights:** Rhythmic enhancement, Controlled chaos, Pitch quantization, Probability gate, Cloud module for additional notes, Midi controllable note quantizer, Swing and accents

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

**In-app purchases:** none


### Surface Builder

[App page](https://appshunter.io/ios/app/surface-builder/id6449735778)

Create custom MIDI control surfaces for audio applications. Design interfaces with buttons, knobs, and faders to send and receive MIDI data, control audio clips, and customize appearance. Supports AUv3 plugins and standalone use.

**Highlights:** Customizable MIDI control surfaces, AUv3 plugin and standalone modes, Send/receive MIDI data (notes, controllers, pitch bend), Audio clip playback control, Multi-scene interface design, Drag and drop interface customization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cality free?

Cality costs $6.99, with no in-app purchases.

### Is Surface Builder free?

Surface Builder costs $14.99, with no in-app purchases.

### Which has better reviews, Cality or Surface Builder?

Surface Builder is rated higher. Cality averages 4.4 out of 5 from 17 ratings, while Surface Builder averages 4.7 from 15 ratings.

### Do Cality or Surface Builder have ads?

Neither Cality nor Surface Builder shows ads.

### Which is updated more often, Cality or Surface Builder?

Cality ships an update every 4 weeks, and Surface Builder every 3 weeks. Most recently, Cality was updated on October 2, 2026 and Surface Builder on October 1, 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.*