# SpaceFields vs OODA

The clearest difference is update cadence: SpaceFields at every 2 months against OODA's every 4 months. OODA's advantage is price ($8.99 vs $10.99). On rating, review sentiment, ratings volume and ads there is nothing between them.

SpaceFields costs $10.99 and OODA $8.99 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 SpaceFields against 4.8 for OODA. Both are backed by a comparable volume of ratings — 47 and 38 respectively. Written reviews split almost evenly too, at 90% and 91% positive.

SpaceFields ships an update every 2 months, OODA every 4 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | SpaceFields | OODA |
| --- | --- | --- |
| Price | $10.99 | **$8.99** |
| Rating | [4.7 (47 ratings)](https://appshunter.io/ios/app/spacefields/id1596872812/reviews) | **[4.8 (38 ratings)](https://appshunter.io/ios/app/ooda-portable-midi-sequencer/id1612549576/reviews)** |
| Number of ratings | **47** | 38 |
| Positive reviews | 90.5% of reviews | **91.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | Paid |
| Size | 132 MB | 11 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Igor Vasiliev](https://appshunter.io/developer/424401626) | [Ryan Robinson](https://appshunter.io/developer/1270890717) |

## What reviewers say

### 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


### OODA

[App page](https://appshunter.io/ios/app/ooda-portable-midi-sequencer/id1612549576)

This app offers a unique approach to MIDI sequencing with interactive and semi-generative features. Connect steps with conditional 'wormholes' for structured variation and create melodic variations in real-time without disrupting the groove. Its flexible grid supports various musical applications, from simple melodies to complex generative patterns.

**Highlights:** Record sequences up to 64 steps, Interactive step sequencing with wormholes, Four independent voices with customizable settings, Real-time melodic variation control, Flexible grid configuration, Standalone and AUv3 host compatibility, MIDI clock sync and output

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SpaceFields free?

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

### Is OODA free?

OODA costs $8.99, with no in-app purchases.

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

OODA is rated higher. SpaceFields averages 4.7 out of 5 from 47 ratings, while OODA averages 4.8 from 38 ratings.

### Do SpaceFields or OODA have ads?

Neither SpaceFields nor OODA shows ads.

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

SpaceFields ships an update every 2 months, and OODA every 4 months. Most recently, SpaceFields was updated on October 27, 2026 and OODA on October 27, 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.*