Uber Synth vs Pinkish Trombone
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
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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.
Pinkish Trombone
This app is a studio-ready instrument for iOS, expanding on a classic web-based speech synthesizer. It offers multitouch playability with modulation options and automatable parameters, functioning as a standalone app or AUV3.
- Articulatory speech synthesizer
- Multitouch playability
- Modulation options
- Automatable parameters
- Standalone app
- AUV3 support
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Based on Neil Thapen's classic web-based interactive articulatory speech synthesizer, Pink Trombone, Pinkish expands the original into a studio-ready instrument for iOS. While staying faithful to the original's multitouch playability, Pinkish Trombone adds a suite of modulation options and automatable parameters that breath new life into that venerable vocal tract. Pinkish Trombone operates as a standalone app as well as an AUV3 so you can use it in any of your favorite iOS DAW apps. Apple Silicon macOS users can even use it in Ableton Live!
Screenshots
Verdict
The clearest difference is review sentiment: Pinkish Trombone at 100% against Uber Synth's 50%. Pinkish Trombone also leads on rating (5.0 vs 2.0) and update cadence (fortnightly vs every 3 months). Uber Synth's advantage is price ($3.99 vs $4.99) and iOS requirement (14.0 vs 17.0). 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
Uber Synth costs $3.99 and Pinkish Trombone $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Pinkish Trombone holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 50% of Uber Synth's written reviews are positive against 100% of Pinkish Trombone's.
Uber Synth ships an update every 3 months, Pinkish Trombone fortnightly. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.
| Parameter | Uber Synth | Pinkish Trombone |
|---|---|---|
| Price | $3.99 — better | $4.99 |
| Rating | 2.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Carlotto | Aaron Meyers |
Customer experience
Uber Synth
Pinkish Trombone
In-app purchases
Uber Synth
No in-app purchases
Pinkish Trombone
No in-app purchases









