Riffer vs SpaceFields
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Riffer
This app generates random MIDI patterns and melodies for synths, samplers, and drum machines. Explore scales, complexity, and playback options to create unique musical ideas. Save your favorite riffs and use Infinity mode for endless generation.
- Random pattern and melody generation
- Supports software and hardware MIDI devices
- Customizable scales, complexity, and steps
- Playback motion and transpose controls
- Infinity mode for endless generation
- MIDI output over WiFi or cable
- Ableton Link sync
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Riffer is a creative MIDI sequencer that generates random patterns and melodies for you. Designed to feed any Synth, Sampler, Drum Machine and anything that accepts MIDI signal both software and hardware. You can choose scales, complexity, steps, start and end points, playback motion, set pitch, transpose, measures and many more. Generate fresh ideas, sequences, melodies, riffs and musical patterns. Turn them into something of your own, or let it run endlessly using the Infinity mode. Riffer is built both for studio and live performance. The app includes a huge variety of scales, from western to eastern and you can save your favorite Riffs for quick access. Featuring MIDI output support over WiFi or MIDI cable. Riffer also supports Ableton Link for tight sync between apps on the same network.
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 rating: SpaceFields at 4.7 against Riffer's 4.1. SpaceFields also leads on review sentiment (90% vs 65%). Riffer's advantage is price ($9.99 vs $10.99). On ratings volume, update cadence, ads and in-app purchases 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
Riffer costs $9.99 and SpaceFields $10.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SpaceFields holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 87 and 47 respectively. Written reviews point the same way: 65% of Riffer's written reviews are positive against 90% of SpaceFields's.
Riffer ships an update every 6 weeks, SpaceFields every 2 months. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | Riffer | SpaceFields |
|---|---|---|
| Price | $9.99 — better | $10.99 |
| Rating | 4.1 (87 ratings) | 4.7 (47 ratings) — better |
| Positive reviews | 64.8% of reviews | 90.5% of reviews — better |
| Number of ratings | 87 — better | 47 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 9 MB | 132 MB |
| Age rating | 4+ | 4+ |
| Developer | AUDIOMODERN | Igor Vasiliev |
Customer experience
Riffer
SpaceFields
In-app purchases
Riffer
No in-app purchases
SpaceFields
No in-app purchases









