Uber Synth vs JMP Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Uber Synth
This app offers a polyphonic multi-timbral FM synthesizer for iOS devices. It features a triple-oscillator sound engine with five distinct multi-timbral options for creating evolving and complex soundscapes. Supports Audiobus for integration with other music apps.
- Polyphonic multi-timbral FM synthesizer
- Triple-oscillator cross-modulated FM engine
- Five multi-timbral options
- Sound map and sound palettes
- Evolving sound generation
- Audiobus support
Read full descriptionHide full description
Uber Synth is a polyphonic multi-timbral frequency modulated (FM) synthesizer that runs on any iOS device. The underlying sound engine is based on the triple-oscillator cross-modulated FM synthesizer first introduced in our xMod app. Uber Synth provides five multi-timbral options: 1) Mix the sounds of any two sound patches, 2) combine patches using the sound map, 3) Generate specified as well as randomized sound palettes across the keyboard, 4) Specify a region in sound space centered on a sound and move a point by a variable randomized amount within the region each time you play a note to create an evolving mix of the center sound and the sound nearest the point. 5) Do the same as above moving the point automatically at a specified rate. Supports Audiobus.
JMP Pro
This app emulates a classic guitar preamplifier, offering four distinct channels for various tones from clean to high-gain metal. It includes a power amplifier, digital delay, analog modulations, and reverb. It functions as a standalone app or an audio effect.
- Four distinct amplifier channels
- Virtual EL34 power amplifier
- Digital delay with filter and offset
- Analog chorus and tremolo modulation
- Hall reverb algorithm
- Noise gate and studio compressor
Read full descriptionHide full description
PREAMPLIFIER Nembrini Audio JMP Pro Guitar Amplifier plugin is based on a Marshall JMP1* preamplifier. JMP Pro Valve Amplifier drives pure tone into each of its four uniquely voiced channels OD1, OD2, Clean1 and Clean2 OD1: This channel’s smouldering power will take you from the molten gold of a classic British sound, to searing metal and all points in between. OD2: Tightly focused, high gain is served up here by the truckload. Modern and aggressive, yet fluid and toneful. This channel has all the distortion and sustain you’ll ever need. Clean1: It is perfect for warm full-bodied chords, fat clean lead passages and jazz tones. Clean2: It has the glassy edge of a classic British sound for those bright, jangly tones. POWER AMPLIFIER Powered by four EL34 virtual tubes with presence, volume and power switch in class AB push-pull configuration. DIGITAL DELAY FILTER make the delay Lo-Fi and OFFSET create a time offset in left/right delay sections ANALOG MODULATIONS select Chorus or Tremolo modulation AMBIENT REVERB Hall reverb algorithm FILTERS CLEANER Low and High cut filters PRE and POST amplifier ANALOG NOISE GATE tuned for guitar and bass STUDIO COMPRESSOR keep your dynamics in check, whether just thickening the sound or keeping levels consistent Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect. Legal Disclaimer: JMP1 is a registered trademark of Marshall Amplification PLC. Nembrini Audio JMP Pro was developed by Nembrini Audio SRL based on its own modelling techniques. Marshall Amplification PLC has not endorsed nor sponsored the Nembrini Audio JMP Pro in any manner, nor licensed any intellectual property for use in this product.
Screenshots
Verdict
The clearest difference is review sentiment: JMP Pro at 100% against Uber Synth's 50%. JMP Pro also leads on rating (5.0 vs 2.0) and ratings volume (4 vs 1). Uber Synth's advantage is update cadence (every 3 months vs every 50 months) and price ($3.99 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
Uber Synth costs $3.99 and JMP Pro $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
JMP Pro holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 50% of Uber Synth's written reviews are positive against 100% of JMP Pro's.
Uber Synth ships an update every 3 months, JMP Pro every 50 months. The most recent releases landed on October 23, 2026 and November 3, 2026 respectively.
| Parameter | Uber Synth | JMP Pro |
|---|---|---|
| Price | $3.99 — better | $9.99 |
| Rating | 2.0 (1 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 3 months — better | Every 50 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15 |
| Further details — not scored | ||
| Size | 7 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Carlotto | Nembrini Audio |
Customer experience
Uber Synth
JMP Pro
In-app purchases
Uber Synth
No in-app purchases
JMP Pro
No in-app purchases









