yaleD vs SpaceFields
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
yaleD
This audio effect plugin creates a unique reverse delay sound. It offers detailed control over feedback, filtering, and timing, with options for synced beats or milliseconds. Ideal for musicians and producers seeking creative audio manipulation.
- Reverse delay audio effect
- AUv3 plugin extension
- Beat-synced or millisecond delay times
- Feedback with cross-pan and filtering
- Optional tape effect
- One-Shot mode for triggered records
- MIDI control and automation support
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yaleD is a dedicated reverse delay audio effect, with full support as an Audio Unit (AUv3) plugin extension. Please note that while it works as a standalone app, it is designed to be used from other host audio apps such as GarageBand, AUM, Audiobus 3, Cubasis, etc! A reverse delay effect continuously listens then plays back reversed chunks of the audio input depending on the delay time, feedback and filtering settings. Can be used for both obvious or subtle effects depending on the setup. Since a reverse delay is sensitive to positional sync as well as delay time, the reversals are appropriately synced to the host transport timeline when playing back and using the beat-based delay time. Or the Hold Time button can be used to both sync and set the delay time manually by pressing and releasing it at the appropriate time. - Complete control over input gain, and independent wet and dry output levels. - Feedback with cross-pan and both low-pass and high-pass filtering. - Two available repeat behaviors when using feedback: one keeps all repeats reversed, while the other alternates each repeat reversed then forwards. - Delay time specified either in milliseconds, or as beats (with 1/16th note resolution) synced to host tempo. You can also specify the maximum delay time (up to 20 seconds!) in the settings to control the per-instance memory usage. - Can apply a delay time scaling offset to the second channel for interesting stereo effects. - Optional Tape effect when changing delay time. - One-Shot mode for doing triggered records and single reverse playback. Great for playing a solo in and reversing just what you want to hear. The hold/record and replay buttons can be controlled with MIDI bindings. - All parameters are exposed to the AU host so that you can apply automation or MIDI bindings from the host - Easy to use resizable plugin interface optimized for host apps on both iPhones and iPads. Made for fingers!
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.
- 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
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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
Screenshots
Verdict
The clearest difference is price: yaleD at $1.99 against SpaceFields's $10.99. yaleD also leads on update cadence (daily vs every 2 months) and rating (4.9 vs 4.7). On ratings volume, ads, in-app purchases and monetization model 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
yaleD costs $1.99 and SpaceFields $10.99 up front. Neither carries in-app purchases, so what you see is what you pay.
yaleD holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 24 and 47 respectively. Written reviews point the same way: 100% of yaleD's written reviews are positive against 90% of SpaceFields's.
yaleD ships an update daily, SpaceFields every 2 months. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.
| Parameter | yaleD | SpaceFields |
|---|---|---|
| Price | $1.99 — better | $10.99 |
| Rating | 4.9 (24 ratings) — better | 4.7 (47 ratings) |
| Positive reviews | 100.0% of reviews — better | 90.5% of reviews |
| Number of ratings | 24 | 47 — better |
| Update frequency | Daily — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 13.4 |
| Further details — not scored | ||
| Size | 13 MB | 132 MB |
| Age rating | 4+ | 4+ |
| Developer | Sonosaurus LLC | Igor Vasiliev |
Customer experience
yaleD
SpaceFields
In-app purchases
yaleD
No in-app purchases
SpaceFields
No in-app purchases









