Comparison

SpaceFields vs OODA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SpaceFields

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
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Loop-based mangler effect to create slowly changing rhythmic sound structures in deep reverb space from any external sources or samples. Great for experimenting and designing ambient and noise backgrounds with rhythmic elements. The principle of the application is quite simple. It is based on a loop recorder with two loops. When one loop is recorded, the second is played back. When the loop recording stops, there is a smooth transition between them. Three separate outputs can playback the recorded loop with different pitches (speeds), each with its own effects and two automation generators. The mix of these outputs is fed to the convolution reverb. The reverb is packed with a set of long and deep sound spaces that create a blurry and ambient sound. But the main feature of this application is its well designed parameters that make it easy to experiment with a huge number of sound options using any source material from live instruments to synthesized sound. With just two parameters you can add complex rhythmic structures based on Euclidean rhythms, and easy-to-use automation generators with a randomize option to add variations to the sound, allowing you to modify parameters like an LFO or based on a given rhythm. The convolution reverb has advanced options with which you can change and extend the original reverb spaces. Even using the randomization options, in almost every case, you will get interesting and various soundscapes and textures. With these options it is very easy to create the basis for new unique presets. It only takes a little tweaking of some parameters to get impressive results. The loop recorder can be started and stopped manually or by input signal, can use fixed length or overwrite the loop while recording, and has the option for crossfade between the end and the beginning of the loop. All this makes it convenient for live use as well as when processing recorded material. As an extended option, you can use a special mode in which the application works as a direct effect, without the loop recorder. The special mode sampler is designed for quickly load samples and easy control of the application when used it live. This panel contains the input and output controls, essential controls of the loop recorder, and a large area with a recording counter, which is also used to start/stop the recorder. You can assign up to nine samples for fast loading into the loop, as well as save a recorded loop as a sample and to an external file. SpaceFields is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). SpaceFields works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, with supports Audiobus host app. On MacOS, SpaceFields can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. All application features are available on iOS and macOS, including MIDI support (with a MIDI learn option), audio unit parameters and importing samples from any directory on device. SpaceFields has a built-in detailed description of all parameters also available as PDF file on the application site. Demos and previews: https://www.youtube.com/watch?v=cL1Dis3u0AQ https://www.youtube.com/watch?v=TpkWkc5I0uE https://www.youtube.com/watch?v=74LyfDM2dQM You can find more information on SpaceFields and other creative audio apps at: https://motion-soundscape.blogspot.com

About

OODA

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
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OODA is a fresh take on the classic MIDI step sequencer with interactive and semi-generative enhancements. What makes OODA unique is that you can connect arbitrary steps together using conditional “wormholes” to add structured (or random) variation to your sequences. Another unique feature is that OODA’s underlying model is decoupled from its voices. This allows you to interact with your sequences and create melodic variations in real time without affecting your groove. OODA’s open-ended sequence grid can be easily configured for almost any use case. Anything from simple melodies and bass parts to semi-generative chords and arpeggios, OODA can do it all with a little creativity! Features: - Record sequences up to 64 steps with the in-app keyboard or an external MIDI device - Interact with your sequence on the fly using four “action” buttons - Link together steps using conditional wormholes to create structure and variation - Create complex patterns of melody and rhythm using four independent voices - Change voice speed independent of sequencer speed - Comes with ten factory presets to give you an idea of what OODA is capable of - Explore a deep, yet focused set of parameters - Sequencer Settings - Grid size (4x4 or 8x8) - Sync voices to sequencer rate - Sequencer rate - Sequencer direction - Shift amount (semitones) - Live toggle rests and skips - Wormhole Patcher - Conditionally “reroute” your sequence by connecting arbitrary steps - Per-step wormholes - Destination and normal steps per wormhole - Trig conditions and probability for moving through each wormhole (see below for list) - Voice Settings - Four voices with independent settings - Enable/disable - Rate of play (in beat time from 16 bars to 32nd T) - Includes unique note values based on the Golden Ratio for maximum generative fun! - Length of note (10% to 100%) - Variety of rules for selecting notes from active step (see below for list) - Pitch offset - Unique pattern control for creating rhythms and polymeters, now with step options - Easily add holds, ties, accents (positive and negative), ratchets, and trig conditions - MIDI velocity and channel - Flexible Connectivity - Use in a compatible audio unit host like AUM, or in standalone mode - Control multiple instruments at once with five MIDI outputs - One for all voices together, and one for each voice by itself - Sync to the tempo of other devices using Ableton Link or MIDI clock (standalone) - Send MIDI clock to external synths (standalone, experimental feature) - Connect to Bluetooth MIDI devices - Modulate OODA’s parameters in a compatible AUv3 host (audio unit) - Eight unique MIDI CC outputs derived from OODA’s sequencer model - Sequencer X, Sequencer Y, Sequence Phase, Action OR, and per-voice random - Includes macOS app! IMPORTANT: OODA can be used as a standalone app or as an AUv3 plugin. There are some important differences between the two. The standalone app features a simple, toggleable "Sidekick Synth" so you can quickly experiment with OODA. Of course, you can also send MIDI from the standalone app. Meanwhile, the OODA AUv3 plugin does NOT generate sound. Instead, you use it to send MIDI (note messages) to other apps, plugins, or hardware instruments that do the actual sound generation. AUv3 plugins must be used inside a compatible host. Available Wormhole Rules - Always, 1x through 7x, 2:2 through 8:8, 10%, 25%, 33%, 50%, 67%, 75%, 90%, Last, Not Last Available Voice Rules - Nth, Lowest, Highest, Random, Up, Down, UpDown, DownUp, UpDown+, DownUp+, Rise, Fall View manual: https://www.audiosymmetric.com/manuals.html View tutorials: https://www.youtube.com/channel/UC9Uka-nFom-pgTB-DftgDvA

Screenshots

SpaceFields4 screens
OODA2 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

SpaceFields costs $10.99 and OODA $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard2 real differences · 8 level
SpaceFields versus OODA: the parameters behind the verdict, then further details
ParameterSpaceFieldsOODA
Price$10.99$8.99 — better
Rating4.7 (47 ratings)4.8 (38 ratings) — better
Positive reviews90.5% of reviews91.3% of reviews — better
Number of ratings47 — better38
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.413.0 — better
Further details — not scored
Size132 MB11 MB
Age rating4+4+
DeveloperIgor VasilievRyan Robinson

Customer experience

SpaceFields

All ratings47 ratings
Positive91.5%
Neutral2.1%
Negative6.4%
Written reviews21 reviews
Positive90.5%
Neutral0.0%
Negative9.5%

OODA

All ratings38 ratings
Positive94.7%
Neutral2.6%
Negative2.6%
Written reviews23 reviews
Positive91.3%
Neutral4.3%
Negative4.3%

In-app purchases

None

SpaceFields

No in-app purchases

None

OODA

No in-app purchases

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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