Jasuto vs MIDI FX PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Jasuto
Create unique sounds and sequences by visually constructing your own synthesizers and effects. Features a powerful sampler for recording, editing, and drawing new samples. Control sound through node positioning and connections, with flexible automation and multi-touch control.
- Visual modular synth construction
- Multi-touch control surface
- Fully-featured sampler
- Node-based sound control
- 75+ built-in modules
- Audiobus and OSC/MIDI support
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[ACCOLADES] - Featured in Apple's staff favorites! - Reviewed in Computer Music magazine and received a 9/10! [DESCRIPTION] Jasuto is the worlds first (and most powerful) modular synthesizer for the iDevices. Jasuto allows you to visually construct your own synths/effects, and use them to make sequences all on your device! With the addition of a fully-featured sampler you can now record/resample/edit, and even create entirely new samples by drawing right in the app. Jasuto uses the relative position of nodes and their connections to control the sound. So the scene not only represents the synthesis structure, but also a custom multi-touch control surface. Motion can be recorded per node giving you rich, flexible automation. Connections can be created automatically by simply dragging nodes around, or manually. Each wire can be double-tapped to allow even more control of each connection. Jasuto comes installed with 75+ modules as well as 200+ pre-loaded scenes and samples. Each of the modules have been hand-optimized for your device's CPU, allowing you to create extremely complex scenes. [NOTABLE FEATURES] - Anti-aliased oscillators with hard-sync, FM, PWM, PM - Analog style filters (ap, lp, hp, bp, ladder emulation) - Signal control (compressor, limiter, gate, follower) - Zoomable sampler editor with several loop modes (normal, 1 shot, ping, granular) - ADSR envelope editor - Multipage/octave sequencer - Tape style analog delay - Reverb, phaser, several waveshapers - Resample/record the current playback - Audio copy via the pasteboard - Incoming OSC and MIDI for notes and CC's - Audiobus support (input, effect & output source) - Completely compatible with iOS7 - Updated UI graphics - Universal device and Retina support - A shiny new manual - Added background audio support - Low latency audio (256 samples) - Sample sharing through SoundCloud - Dropbox syncing of samples/scenes - High Fidelity (Hi-Fi) Audio [WEBSITE] http://www.jasuto.com
MIDI FX PRO
This app is a powerful MIDI workstation for iOS and Mac, allowing users to control and process MIDI signals. It offers features like harmonization, transposition, arpeggiation, and sequencing for external or virtual synths. It also includes internal instruments and effects for mobile music creation.
- MIDI signal processing
- Harmonize, Transpose, Arpeggiate
- Sequencer for synths
- Delay/looper
- Internal instruments (drums, piano, synth)
- Filter notes by velocity
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Buy once and get the iOS and Mac apps (with Family Sharing) This is the Unlocked Version of MIDI FX. You can buy this version instead of unlocking the free one through IAP Control your MIDI signals and process them in any combination of ways: Harmonize, Transpose, Arpeggiate, etc... Or use the Sequencer to play any external or virtual synth. Use a MIDI interface to unlock the power of the app to control multiple synths with one keyboard, play one note and generate chords, basslines, etc... Use the delay/looper or filter notes based on velocity or other parameters to send to different synths/effects. A MIDI workstation in your pocket (or your iPad/Mac) You can also use some internal instruments (drums sampler, piano or synth) if you are away from your MIDI gear, and sequence whole songs inside the app, or use other synth apps as input/output for MIDI FX. Your imagination is the limit!
Screenshots
Verdict
The clearest difference is rating: MIDI FX PRO at 5.0 against Jasuto's 4.1. MIDI FX PRO also leads on update cadence (monthly vs every 3 months). Jasuto's advantage is review sentiment (80% vs 50%) and price ($4.99 vs $9.99). On ads, in-app purchases, monetization model and device support 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
Jasuto costs $4.99 and MIDI FX PRO $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
MIDI FX PRO holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Jasuto has 38 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 80% of Jasuto's written reviews are positive against 50% of MIDI FX PRO's, so the app with the better star average is not the one people write more warmly about.
Jasuto ships an update every 3 months, MIDI FX PRO monthly. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.
| Parameter | Jasuto | MIDI FX PRO |
|---|---|---|
| Price | $4.99 — better | $9.99 |
| Rating | 4.1 (38 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 80.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 38 — better | 3 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 8.0 — better | 14.7 |
| Further details — not scored | ||
| Size | 51 MB | 263 MB |
| Age rating | 4+ | 4+ |
| Developer | Christopher Wolfe | Jorge Arroyo |
Customer experience
Jasuto
MIDI FX PRO
Bugs and requests
Jasuto
Reported bugs
12 issues- Privacy warning on manual
- Not working on iPhone
- No delete command in File menu
- Crashing when editing value fields
- Information button not working
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- Odd wiring issues sometimes
- Sample playback tempo issues
- Crashing on older iOS versions
- App does not open
- Audiobus not working
- Update crashes on iTouch 3.1.2
- Crashes after splash screen on iPod touch OS 3.1.3
Requested features
19 requests- AUv3 effect/instrument version
- Access to file browser
- Tutorial videos
- Dark mode option
- Advanced analytics dashboard
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- Add delete command in File menu
- Fix crashing when editing value fields
- Fix Information button
- Allow entering/editing file information
- Add Core MIDI support
- Increase recording length
- Increase sequencing length
- Improve developer communication
- Improve playback through bottom speaker
- Add complete manual
- Add automatic connecting feature as an option
- Allow listening to samples before loading
- Add more sophisticated controller modules
- Create custom controllers
MIDI FX PRO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Jasuto
No in-app purchases
MIDI FX PRO
No in-app purchases









