Kosmonaut vs BLEASS Motion FX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kosmonaut
This audio effect plugin adds echoes and spatial depth to your music. It features a tape looper, multi-tap delay, filters, autopanner, and ambiance generator to create unique soundscapes. Save and recall your custom presets across different music production apps.
- Tape looper with sound-on-sound decay
- 4-Tap Delay with complex feedback
- LP/HP filters with LFO
- Autopanner
- Ambiance Generator
- Haas Effect Processor
- User preset saving
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*** Note: this is an Audio Unit Effect Plugin (AUv3) which requires a compatible host or DAW to work. *** Kosmonaut is Multitap Delay with a twist. In addition to adding echoes to your audio, it packs a bunch of extra tools to put your music in space: - Tape looper with with variable sound-on-sound decay level - 4-Tap Delay (placed in series for complex feedback loops) - LP/HP filters with LFO - Autopanner - Ambiance Generator - Haas Effect Processor (aka 'wavefront precedence effect') All features are demonstrated extensively in a ton of factory presets, and you can easily add your own user presets, which will automatically carry over across different host apps. All variables are exposed as AU Parameters in hosts which support automation. It also has a smart Random-feature, which may come up with usable results :-) Check out ruismaker.com for the user manual and audio demos.
BLEASS Motion FX
This app provides a creative workflow for sound design with 11 distinct effects. Dynamically modulate these effects using a versatile motion sequencer to explore new sonic territories. Load multiple instances for complex sound manipulation.
- 11 unique audio effects
- Versatile motion sequencer
- Dynamic parameter modulation
- Load multiple instances
- Cross-platform availability (iOS, Windows, macOS)
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BLEASS Motion FX offers a new and creative workflow to effects sound design. Choose between 11 different effects and dynamically modulate it thanks to a highly versatile motion sequencer. Load as many instances of Motion FX as you want and unveil new sonic territories! BLEASS Motion FX contains 11 different effects which you can modulate precisely thanks to an intuitive and comprehensive sequencer. The 11 effects included are: - Low Pass Filter - High Pass Filter - Band Pass Filter - Volume - Pan - Pitch Shifter - Frequency Shifter - Ring Modulator - Warmth - Bit Crusher - Delay Each effect has a parameter automated by the sequencer and can have one or more secondary parameters. Pick an effect and then modulate it dynamically thanks to the motion sequencer. When switching effects, the motion sequencer keeps its state to invite you to new sound design ideas! BLEASS Motion FX is also available for Windows & macOS More detailed information are available on https://www.bleass.com/motionfx/
Screenshots
Verdict
The clearest difference is update cadence: Kosmonaut at every 8 days against BLEASS Motion FX's every 54 months. Kosmonaut also leads on price ($3.99 vs $7.99) and ratings volume (68 vs 13). On rating, review sentiment, 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
Kosmonaut costs $3.99 and BLEASS Motion FX $7.99 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 — 4.8 for Kosmonaut against 4.8 for BLEASS Motion FX. That said, the two scores are not equally well evidenced: Kosmonaut has 68 ratings behind it against 13, so its average is the more settled of the two. Written reviews are what separate them: 94% of Kosmonaut's written reviews are positive against 100% of BLEASS Motion FX's.
Kosmonaut ships an update every 8 days, BLEASS Motion FX every 54 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Kosmonaut | BLEASS Motion FX |
|---|---|---|
| Price | $3.99 — better | $7.99 |
| Rating | 4.8 (68 ratings) | 4.8 (13 ratings) — better |
| Positive reviews | 93.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 68 — better | 13 |
| Update frequency | Every 8 days — better | Every 54 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 4 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Bram Bos | BLEASS |
Customer experience
Kosmonaut
BLEASS Motion FX
In-app purchases
Kosmonaut
No in-app purchases
BLEASS Motion FX
No in-app purchases
