Comparison

Mochizuki vs SynthBridge MIDI Synth

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mochizuki

This is a subtractive synthesizer application featuring four oscillators. It offers a platform for creating and manipulating sounds. More detailed information is available on the product website.

Highlights
  • Subtractive synthesis
  • Four oscillators
  • AUv3 plugin support
  • Sound manipulation
Read full description

Mochizuki is a polyphonic synthesizer built around four oscillators and two filters. The four oscillators can be mixed in parallel or connected in series to create more complex sounds. Each oscillator can also be configured as one of four types: AM, FM, Noise, or Resonator. Most parameters can be modulated using a wide range of modulation sources, including envelopes, LFOs, step sequencers, macros, and per-note expression such as pitch bend and slide. Signals from each oscillator and filter can be routed individually, with independent control over their destinations and levels. This makes it possible to create flexible and complex signal routings, combining conventional serial connections with parallel paths and multiple signal paths. For more information, including the user manual, compatibility details, and important notices, please visit the product website. iceGear Instruments https://icegear.net/

About

SynthBridge MIDI Synth

Transform your device into a portable sound module and practice space. Connect a MIDI keyboard or use the on-screen controls to play with a vast sound library, layer instruments, and apply effects. Record performances, practice with loops and metronomes, and export your creations.

Highlights
  • MIDI keyboard connectivity
  • SoundFont (SF2/SF3) import
  • Layered sound design
  • MIDI CC parameter control
  • MIDI file playback and recording
  • Metronome and loop functionality
  • Performance scene saving
Features
Read full description

Connect your MIDI keyboard, choose a sound, and play. SynthBridge turns your phone or tablet into a portable sound module and practice workspace. You can also start with the on-screen piano and drum pads. Your sounds: use the built-in library or import SF2/SF3 SoundFonts. Layer sounds and adjust their balance, effects and keyboard ranges. Your keyboard: connect compatible USB MIDI or Bluetooth MIDI devices. Control supported parameters with MIDI CC messages. Your practice: play MIDI files, follow the note visualization, and combine a metronome, loops and Style accompaniment. Your ideas: record MIDI performances, keep named drafts, preview takes and export MIDI files. MIDI files can also be converted to WAV or AAC audio. Your setup: save performance scenes and return to your sounds and playing settings. Use portrait or landscape layouts on phones and tablets. Some features and resources require in-app purchases. iOS or iPadOS 15.0 or later. USB and Bluetooth MIDI require compatible devices and accessories. https://synth.64bit.us/privacy.html https://synth.64bit.us/terms.html

Screenshots

Mochizuki2 screens
SynthBridge MIDI Synth4 screens

Verdict

The call

The clearest difference is review sentiment: SynthBridge MIDI Synth at 100% against Mochizuki's 57%. SynthBridge MIDI Synth also leads on rating (4.8 vs 3.8) and iOS requirement (15.0 vs 18). Mochizuki's advantage is ratings volume (13 vs 4). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mochizuki sells 5 one-off in-app purchases and SynthBridge MIDI Synth sells 7 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SynthBridge MIDI Synth holds the better App Store score, 4.8 against 3.8. Both are backed by a comparable volume of ratings — 13 and 4 respectively. Written reviews point the same way: 57% of Mochizuki's written reviews are positive against 100% of SynthBridge MIDI Synth's.

UpkeepUpdate frequency

Mochizuki ships an update every 2 weeks, SynthBridge MIDI Synth fortnightly. The most recent releases landed on November 10, 2026 and November 11, 2026 respectively.

Scorecard4 real differences · 6 level
Mochizuki versus SynthBridge MIDI Synth: the parameters behind the verdict, then further details
ParameterMochizukiSynthBridge MIDI Synth
PriceFreeFree
Rating3.8 (13 ratings)4.8 (4 ratings) — better
Positive reviews57.1% of reviews100.0% of reviews — better
Number of ratings13 — better4
Update frequencyEvery 2 weeks — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS1815.0 — better
Further details — not scored
Size38 MB76 MB
Age rating4+4+
DevelopericeWorks, Inc.啟东 徐

Customer experience

Mochizuki

All ratings11 ratings
Positive63.6%
Neutral0.0%
Negative36.4%
Written reviews7 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

SynthBridge MIDI Synth

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

5 purchases

Mochizuki

One-time5
  • Free 7-day trialFree
  • Small Tip$1.00
  • Medium Tip$3.00
Show 2 more
  • Large Tip$5.00
  • Core Features$20.00
7 purchases

SynthBridge MIDI Synth

Subscriptions2
  • Cloud Monthly7 Days trial$1.991 Month
  • Cloud Yearly7 Days trial$12.991 Year
One-time5
  • Supporter Tip$0.99
  • Remove Ads$1.99
  • Supporter Plus$4.99
Show 2 more
  • SynthBridge Pro$4.99
  • Supporter Patron$9.99

Questions

Is Mochizuki free?
Mochizuki is free to download, with in-app purchases available.
Is SynthBridge MIDI Synth free?
SynthBridge MIDI Synth is free to download, with in-app purchases available.
Which has better reviews, Mochizuki or SynthBridge MIDI Synth?
SynthBridge MIDI Synth is rated higher. Mochizuki averages 3.8 out of 5 from 13 ratings, while SynthBridge MIDI Synth averages 4.8 from 4 ratings.
Do Mochizuki or SynthBridge MIDI Synth have ads?
Neither Mochizuki nor SynthBridge MIDI Synth shows ads.
Which is updated more often, Mochizuki or SynthBridge MIDI Synth?
Mochizuki ships an update every 2 weeks, and SynthBridge MIDI Synth fortnightly. Most recently, Mochizuki was updated on November 10, 2026 and SynthBridge MIDI Synth on November 11, 2026.

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