# LayR vs Surface Builder

The clearest difference is price: Surface Builder at $14.99 against LayR's $24.99. Surface Builder also leads on rating (4.7 vs 4.5) and update cadence (every 3 weeks vs every 2 months). LayR's advantage is ratings volume (97 vs 15). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

LayR costs $24.99 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 4.5. That said, the two scores are not equally well evidenced: LayR has 97 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 78% of LayR's written reviews are positive against 80% of Surface Builder's.

LayR ships an update every 2 months, Surface Builder every 3 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | LayR | Surface Builder |
| --- | --- | --- |
| Price | $24.99 | **$14.99** |
| Rating | [4.5 (97 ratings)](https://appshunter.io/ios/app/layr-multi-timbral-synthesizer/id1155825562/reviews) | **[4.7 (15 ratings)](https://appshunter.io/ios/app/surface-builder/id6449735778/reviews)** |
| Number of ratings | **97** | 15 |
| Positive reviews | 77.9% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 20 MB | 32 MB |
| Requires iOS | 15.0 | **13** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Living Memory Software](https://appshunter.io/developer/1038887268) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### LayR

[App page](https://appshunter.io/ios/app/layr-multi-timbral-synthesizer/id1155825562)

This powerful synthesizer app offers massive polyphony and multi-timbral sound design capabilities. Create rich, layered textures with flexible oscillators, filters, and extensive modulation options. Ideal for live performance and studio production.

**Highlights:** Massively polyphonic (up to 256 voices), Multi-timbral sound design, Dual morphing oscillators, State variable filters and wave folder, Extensive modulation sources (LFOs, envelopes, random), Stereo delay, reverb, and EQ, 8-track, 16-step Arpeggio Sequencer, Flexible MIDI control and mapping

**In-app purchases:** none

**What reviewers like**

- 🎵 Exceptional sound quality and rich audio output
- 🧩 Powerful layering system for complex sound design
- 🎹 Versatile synthesis engine with unlimited creative potential
- 📚 Comprehensive preset library with inspiring sounds
- 🎛️ Intuitive interface for deep functionality

**What reviewers complain about**

- 🐛 Audio crackling and popping on newer iPad Pro models
- 🔥 High CPU usage causing performance issues
- 🎹 Small keyboard keys difficult to play on mobile
- 🌑 Dark interface hard to read and navigate
- 📵 Crashes when used as Audio Unit in DAWs

**Reported bugs**

- Audio crackling and popping on iPad Pro 2018 and newer
- App crashes when used as Audio Unit in DAWs
- Unable to exit app on newer iPad models without workaround
- Arpeggiator gets stuck on notes in hold mode
- Contact support link not functional

**Requested features**

- Built-in sampler with pitch and time shift
- Mac version or VST/AU plugin
- Preset tagging and favorites system
- Rearrangeable preset slots
- More presets and sound banks


### 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 LayR free?

LayR costs $24.99, with no in-app purchases.

### Is Surface Builder free?

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

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

Surface Builder is rated higher. LayR averages 4.5 out of 5 from 97 ratings, while Surface Builder averages 4.7 from 15 ratings.

### Do LayR or Surface Builder have ads?

Neither LayR nor Surface Builder shows ads.

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

LayR ships an update every 2 months, and Surface Builder every 3 weeks. Most recently, LayR was updated on October 24, 2026 and Surface Builder on October 20, 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.*