# ThumbJam vs SpaceFields

The clearest difference is price: ThumbJam at $6.99 against SpaceFields's $10.99. ThumbJam also leads on chart position (#156 vs unranked) and ratings volume (218 vs 47). SpaceFields's advantage is update cadence (every 2 months vs every 4 months). On rating, review sentiment, ads and in-app purchases there is nothing between them.

ThumbJam costs $6.99 and SpaceFields $10.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for ThumbJam against 4.7 for SpaceFields. Both are backed by a comparable volume of ratings — 218 and 47 respectively. Written reviews are what separate them: 85% of ThumbJam's written reviews are positive against 90% of SpaceFields's.

ThumbJam ships an update every 4 months, SpaceFields every 2 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | ThumbJam | SpaceFields |
| --- | --- | --- |
| Price | **$6.99** | $10.99 |
| Rating | [4.7 (218 ratings)](https://appshunter.io/ios/app/thumbjam/id338977566/reviews) | [4.7 (47 ratings)](https://appshunter.io/ios/app/spacefields/id1596872812/reviews) |
| Number of ratings | **218** | 47 |
| Positive reviews | 84.6% of reviews | **90.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Best chart rank | **#156** | — |
| Size | 215 MB | 132 MB |
| Requires iOS | **8.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sonosaurus LLC](https://appshunter.io/developer/338977569) | [Igor Vasiliev](https://appshunter.io/developer/424401626) |

## What reviewers say

### ThumbJam

[App page](https://appshunter.io/ios/app/thumbjam/id338977566)

**Currently charting:** #156 Top Paid · Music (US App Store)

This app provides a powerful musical performance experience with over 40 high-quality instrument sounds and hundreds of scales. It allows users of all skill levels to play in any style, offering expressive controls and loop-building capabilities.

**Highlights:** Over 40 high-quality multi-sampled instruments, Hundreds of included scales for any style, Expressive controls using tilt and shake, Loop building and audio export, Extensive MIDI and Audiobus support, Powerful arpeggiator feature

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎨 Great sound quality
- 🎹 Versatile and expressive instrument
- 🎶 Excellent for music creation and improvisation
- 💻 Powerful MIDI capabilities
- 🎨 Realistic instrument samples

**What reviewers complain about**

- 🔍 Lack of chord mode
- 🔢 Difficulty with precise note selection
- 🔀 Issues with loop recording and syncing
- 🔋 Battery drain concerns
- 🚫 Compatibility problems with newer devices/OS

**Reported bugs**

- Instrument muting when switching apps or opening help
- Inconsistent behavior and freezing after recent updates
- Inability to load/save recorded sets or mixes

**Requested features**

- Add chord mode for easier chord playing
- Improve loop recording and syncing capabilities
- Implement quantization options for tighter timing
- Expand instrument library with more diverse sounds
- Add support for Audio Unit (AUv3) to integrate with DAWs


### SpaceFields

[App page](https://appshunter.io/ios/app/spacefields/id1596872812)

Create evolving rhythmic soundscapes from any audio source. This app uses a loop-based system with dual loops, pitch shifting, and effects to generate ambient textures and rhythmic structures. Experiment with complex sound design using intuitive controls and randomization.

**Highlights:** Loop-based sound mangling, Dual loop recorder, Pitch shifting and effects, Convolution reverb with deep spaces, Rhythmic structure generation, Automation generators with randomization, Live and sample processing modes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ThumbJam free?

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

### Is SpaceFields free?

SpaceFields costs $10.99, with no in-app purchases.

### Which has better reviews, ThumbJam or SpaceFields?

ThumbJam and SpaceFields are both rated 4.7 out of 5 on the App Store, from 218 and 47 ratings respectively.

### Do ThumbJam or SpaceFields have ads?

Neither ThumbJam nor SpaceFields shows ads.

### Which is updated more often, ThumbJam or SpaceFields?

ThumbJam ships an update every 4 months, and SpaceFields every 2 months. Most recently, ThumbJam was updated on October 14, 2026 and SpaceFields on October 9, 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.*