Comparison

ULTIMIDI vs ThermVoltGe

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

Head to head
About

ULTIMIDI

Design custom MIDI touch control surfaces with a free-form canvas. Assign gestures, physics, and automation to faders, knobs, and more. Connect to any MIDI-capable app or hardware for a personalized music creation experience.

Highlights
  • Customizable MIDI touch control surfaces
  • Free-form canvas for layout design
  • Assign gesture bindings and automation
  • Connect to MIDI apps and hardware
  • Advanced control logic and routing
  • Cloud saving for controller layouts
Features
Read full description

Design custom MIDI touch control surfaces with ease. Assign gesture bindings, physics behaviors, automation, visual design, and more on the fly. ----- Make your instrument feel like YOU. ULTIMIDI lets you build your perfect controller layout on a free-form canvas. Add faders, knobs, XY pads, buttons, joysticks, step sequencers, and MUCH more, then arrange and connect them together exactly how you want. Advanced Connectivity: - Connect to any MIDI-capable app, hardware synth, DAW, or Bluetooth MIDI enabled device. (Network connectivity features coming soon!) Automation Capabilities: - Hand draw your LFO curves or instantly adjust a step sequencer. ULTIMIDI prioritizes ZERO menus when in performance mode. Set up your automation targets ahead of time, and adjust them instantly with your own UI layout. Powerful control logic: - Need that fader to push to 75% only when button A and button B are pressed at the same time? No problem. - Chain actions, build logic gates, bind global gestures, and sync them all with with an internal or external MIDI clock. - Complex routing is made simple with zero coding knowledge required. Other Goodies: - Keep multiple controller layouts locally or save them to the cloud - Cross platform capabilities - Map anything with an external MIDI controller - Loop your control devices - Show photos / video on your canvas - Much more Designed for YOU, the creative musician who wants to connect all of their gear together for ease of use in performance or studio workflows without kneeling down to the manufacturer's idea of a "convenient" layout. ----- ULTIMIDI is a growing platform empowering musicians with simple to use MIDI tools that pack a punch under the hood. Music production can be a highly technical pursuit. For some of us that's part of the enjoyment of the activity, and for others, we just want to play. ULTIMIDI seeks to find a balance between complex routing / logic behaviors, and a no-code, open canvas interface that is fun and enjoyable to use. So whether you just want a few knobs with custom emoji cursors, or you want to create a full control surface brain to connect your entire studio together, ULTIMIDI does it all. Inject your soul and creative eye into your control surface, without abandoning technical complexity. ----- ULTIMIDI is in active development, we are actively adding in new features and control devices. Any future additions to the standard version or the currently available add-on packs will be automatically applied to purchases made today. Join the touch control movement!

About

ThermVoltGe

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ThermVoltGe is a character-focused germanium distortion processor for iPhone and iPad. Use it as a standalone audio app or insert the included AUv3 effect in a compatible host such as GarageBand. Its nonlinear core is built around an OA91-style germanium-diode architecture. A low forward-voltage threshold, asymmetric conduction, temperature dependency, battery sag, and supply-voltage interaction create early compression and a soft, rounded clipping response. FEATURES - OA91-style germanium diode clipping - Temperature-dependent nonlinear response - Battery sag and supply-voltage control - Instrument and line input modes - Boost stage - Adjustable gain, high-pass filter, tone, drive, and output - 2x and 4x oversampling modes - Standalone iOS/iPadOS app - AUv3 audio effect for compatible hosts TRY BEFORE UNLOCKING The app provides 10 minutes of full-featured active use. Demo time advances only while the standalone app or AUv3 effect is actively being used. After the allowance is used, audio processing is disabled for 24 hours. A one-time, non-consumable In-App Purchase unlocks unlimited use in both the standalone app and AUv3 extension. Restore Purchases is available in the standalone app. Customers whose verified original app version is 1.0.2 or earlier retain full access automatically without an additional purchase. ThermVoltGe is designed for guitar, bass, synthesizers, keyboards, and other sources that benefit from compressed, harmonically rich germanium drive.

Screenshots

ULTIMIDI3 screens
ThermVoltGe2 screens

Verdict

The call

ULTIMIDI and ThermVoltGe are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. ULTIMIDI sells 4 one-off in-app purchases and ThermVoltGe sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ULTIMIDI ships an update every 5 weeks, ThermVoltGe every 2 months. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

ScorecardNo meaningful differences
ULTIMIDI versus ThermVoltGe: the parameters behind the verdict, then further details
ParameterULTIMIDIThermVoltGe
PriceFreeFree
Rating2.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size38 MB28 MB
Age rating4+4+
DeveloperNicholas HoganShoma Kondo

In-app purchases

4 purchases

ULTIMIDI

One-time4
  • Performance Pack$25.00
  • Stepped Controls Pack$25.00
  • Automation Pack$25.00
Show 1 more
  • Standard Upgrade$50.00
1 purchases

ThermVoltGe

One-time1
  • ThermVoltGe Full Version$4.99

Questions

Is ULTIMIDI free?
ULTIMIDI is free to download, with in-app purchases available.
Is ThermVoltGe free?
ThermVoltGe is free to download, with in-app purchases available.
Do ULTIMIDI or ThermVoltGe have ads?
Neither ULTIMIDI nor ThermVoltGe shows ads.
Which is updated more often, ULTIMIDI or ThermVoltGe?
ULTIMIDI ships an update every 5 weeks, and ThermVoltGe every 2 months. Most recently, ULTIMIDI was updated on October 6, 2026 and ThermVoltGe on October 12, 2026.

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