# Surface Builder vs Riffler Flow

The clearest difference is rating: Surface Builder at 4.7 against Riffler Flow's 4.1. Surface Builder also leads on review sentiment (80% vs 50%). Riffler Flow's advantage is monetization model (free vs paid) and update cadence (weekly vs every 3 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Surface Builder costs $14.99 and Riffler Flow $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 4.1. Both are backed by a comparable volume of ratings — 15 and 25 respectively. Written reviews point the same way: 80% of Surface Builder's written reviews are positive against 50% of Riffler Flow's.

Surface Builder ships an update every 3 weeks, Riffler Flow weekly. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Surface Builder | Riffler Flow |
| --- | --- | --- |
| Price | $14.99 | $14.99 |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/surface-builder/id6449735778/reviews)** | [4.1 (25 ratings)](https://appshunter.io/ios/app/riffler-flow/id6467568526/reviews) |
| Number of ratings | 15 | **25** |
| Positive reviews | **80.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Paid | **Free** |
| Best chart rank | — | **#185** |
| Size | 32 MB | 780 MB |
| Requires iOS | 13 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [4Pockets.com](https://appshunter.io/developer/370131860) | [Jonathan Bell](https://appshunter.io/developer/1061939293) |

## What reviewers say

### 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


### Riffler Flow

[App page](https://appshunter.io/ios/app/riffler-flow/id6467568526)

**Currently charting:** #185 Top Paid · Music (US App Store)

Instantly generate clean, arpeggio-based guitar riffs for various music genres. Explore preset styles or customize your own unique sounds with realistic tones and extensive chord options. Ideal for producers, songwriters, and musicians seeking creative inspiration.

**Highlights:** Instant arpeggio-based riff generation, Preset styles for Hip-Hop, Pop, EDM, Rock, Customizable settings for personalization, AUv3 plugin integration, Realistic guitar and synth tones, Chord and progression generator, Tablature output

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

**In-app purchases:** none


## Frequently asked questions

### Is Surface Builder free?

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

### Is Riffler Flow free?

Riffler Flow costs $14.99, with no in-app purchases.

### Which has better reviews, Surface Builder or Riffler Flow?

Surface Builder is rated higher. Surface Builder averages 4.7 out of 5 from 15 ratings, while Riffler Flow averages 4.1 from 25 ratings.

### Do Surface Builder or Riffler Flow have ads?

Neither Surface Builder nor Riffler Flow shows ads.

### Which is updated more often, Surface Builder or Riffler Flow?

Surface Builder ships an update every 3 weeks, and Riffler Flow weekly. Most recently, Surface Builder was updated on September 22, 2026 and Riffler Flow on September 17, 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.*