Comparison

MIDI Aid vs FuncBud Math Sequencer & Synth

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

Head to head
About

MIDI Aid

Features
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MIDI Aid is a MIDI monitor: connect your MIDI devices and see every incoming event in one clean, technical view. Whether you are debugging a synth patch, checking a controller mapping, or just curious what your gear is sending, MIDI Aid shows you what is really happening on the wire. CAPTURE • Live event log with precise timestamps • Start, pause, and resume capturing at any time • Clear the log with one tap • Follow mode keeps the newest events in view UNDERSTAND • Every event decoded into plain language: notes with names and velocities, controllers with their standard names, program changes, aftertouch, pitch wheel, and more • Raw status and data bytes side by side with the decoded event • Hex or decimal display, your choice • Tap any event for a detail view including the full raw bytes FILTER • Focus on what matters: filter by device, event type, and MIDI channel • Channel events, system common events, and system real time events can be toggled individually • Mute noisy events like Timing Clock or Active Sensing with one tap DEVICES • Works with USB MIDI devices out of the box • Network MIDI sessions and Bluetooth MIDI devices set up at system level appear automatically MIDI Aid supports all 16 MIDI channels, running status, and System Exclusive messages. No account, no ads, no tracking. Your MIDI data never leaves your device. MIDI Aid only counts anonymously which features are used; a random install ID is added only if you allow it.

About

FuncBud Math Sequencer & Synth

Generate musical sequences using mathematical functions. Build and chain formulas to create complex, evolving melodies within a chosen key and scale. Offers conditional logic and random generation for unique musical patterns.

Highlights
  • Mathematical function builder
  • Sequence chaining and repetition
  • Conditional and random functions
  • Key, scale, and octave control
  • Adjustable sequencer parameters
  • MIDI output
  • AUv3 plugin support
Features
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FuncBud is an AUv3 MIDI sequencer app that generates sequences using simple math functions. You can create math functions with the function builder, then chain and repeat them to create complex sequences. A simple x + 1 function would sequence all the notes in the scale in order. It gets more interesting when you use different formulas and chain them. The sequencer starts from the root note and evaluates the first formula to calculate the new note. Then, it moves to the next formula. If it's a repeating function, it repeats the specified number of times before moving to the next formula. The formula's result is converted to a note in the working key and scale, within the defined minimum and maximum octaves. This new note is then played. Additionally, the result is stored in a history of up to 64 entries for later sum or product calculations The function builder lets you create functions with simple addition, subtraction, multiplication and division operations as well as square, square root, sum and product operations. You can also use parentheses to prioritize the calculation order. The newly created function will be saved and accessible in the library across both the standalone app and AUv3 instances. With the conditional functions, you can specify a condition like "if this function is greater than that function, then execute the function A, otherwise execute the function B". The random function generator will generate a value between two functions, a function for the lower bound and another function for the upper bound. The sequencer picks the notes in the current key and scale, between the minimum and maximum octaves. You also have a root note, the starting note, which are all defined at the top of the UI. You can use BrainBud to change the key and scale as well. The sequencer speed (rate), gate length, gate length variety, velocity, velocity variety and swing parameters are accessible with the sliders at the bottom of the UI. In edit mode, you can change the order of the functions. You can also delete a function in edit mode, or simply by swiping it to the left. Newly created patterns automatically copy the current one, making subtle changes easier. If you prefer a clean slate, you can quickly clear the list with the clear button. The loop detection function is accessible in the settings menu. When enabled, it would detect the loop and increment the 'x' value by 1 to break the loop. Please note that FuncBud is a MIDI app. The standalone version has an optional internal synth where you can enable or disable on the settings menu. The AUv3 plugin requires an audio app for output. For the AUv3 functionality, it needs to be hosted within an app such as AUM, Loopy Pro, Cubasis, Logic Pro, Nanostudio, Drambo, or apeMatrix.

Screenshots

MIDI Aid3 screens
FuncBud Math Sequencer & Synth4 screens

Verdict

The call

The clearest difference is update cadence: FuncBud Math Sequencer & Synth at every 6 days against MIDI Aid's every 7 months. FuncBud Math Sequencer & Synth also leads on iOS requirement (13.0 vs 16.0). MIDI Aid's advantage is price ($0.99 vs $5.99). On ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

MIDI Aid costs $0.99 and FuncBud Math Sequencer & Synth $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MIDI Aid ships an update every 7 months, FuncBud Math Sequencer & Synth every 6 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
MIDI Aid versus FuncBud Math Sequencer & Synth: the parameters behind the verdict, then further details
ParameterMIDI AidFuncBud Math Sequencer & Synth
Price$0.99 — better$5.99
Rating—4.9 (8 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—8 — better
Update frequencyEvery 7 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size29 MB14 MB
Age rating4+4+
DeveloperTobias WissmuellerCem Olcay

In-app purchases

None

MIDI Aid

No in-app purchases

None

FuncBud Math Sequencer & Synth

No in-app purchases

Questions

Is MIDI Aid free?
MIDI Aid costs $0.99, with no in-app purchases.
Is FuncBud Math Sequencer & Synth free?
FuncBud Math Sequencer & Synth costs $5.99, with no in-app purchases.
Do MIDI Aid or FuncBud Math Sequencer & Synth have ads?
Neither MIDI Aid nor FuncBud Math Sequencer & Synth shows ads.
Which is updated more often, MIDI Aid or FuncBud Math Sequencer & Synth?
MIDI Aid ships an update every 7 months, and FuncBud Math Sequencer & Synth every 6 days. Most recently, MIDI Aid was updated on October 26, 2026 and FuncBud Math Sequencer & Synth on October 24, 2026.

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