FuncBud Math Sequencer & Synth vs GlitchStep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Mathematical function builder
- Sequence chaining and repetition
- Conditional and random functions
- Key, scale, and octave control
- Adjustable sequencer parameters
- MIDI output
- AUv3 plugin support
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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.
GlitchStep
This music app is a monophonic 16-step MIDI sequencer and AUv3 MIDI processor extension. It allows for real-time sequence rearrangement, song building with playlists, and dynamic performance variations. Integrate it with your favorite AUv3 hosts for enhanced music production.
- 16-step monophonic sequencer
- AUv3 MIDI processor extension
- Real-time sequence rearrangement
- Pattern and slice playlists
- Glitch effects with XY pad
- Extensive scale options
- Customizable sequence controls
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Unleash Your Creativity with GlitchStep GlitchStep is a cutting-edge monophonic 16-step, performance-oriented sequencer and AUv3 MIDI processor extension. Dive into a world of musical possibilities as you play with your sequence and perform dynamic, captivating variations. Next-Level Sequence Manipulation: Inspired by GlitchCore, GlitchStep employs a slice grid for real-time sequence rearrangement. Both patterns and slices can be compiled into playlists, allowing you to build and modify songs on-the-fly for live performance or studio sessions. Effortless Integration: Load GlitchStep as an AUv3 MIDI Processor/MIDI FX in your favorite AUv3 hosts like AUM, Logic, Loopy Pro, Drambo, and more. Note: Standalone use is not supported. Features to Elevate Your Music: - 16 Steps - 8 Patterns - Unlimited Pattern Playlist Entries - Slice Grid with Drawing Mode - 8 Slice Patterns - Unlimited Slice Pattern Playlist Entries - Glitch Your Sequence with XY Pad and Sliders - Aggressive Glitch Capabilities - Extensive Scale Options - Customizable Start and End Sequence Positions - Control Sequence Direction - Global Sequence Rate Adjustments - Individual Pattern Rates - Pattern Note Slides - Swing - Randomize, Shift, Shuffle, Copy/Paste, and Initialize Patterns - Randomization Thresholds - Selective Randomization for Notes, Gates, Velocity, and Probability - Randomize, Shift, Copy/Paste, and Initialize Slices - Scale Key Adjustment - Minimum Octave and Octave Range Settings - 16 Themes Transform your music production with GlitchStep. Whether you're looking to add subtle variations or go all-in on aggressive glitches, this app has you covered.
Screenshots
Verdict
The clearest difference is price: FuncBud Math Sequencer & Synth at $3.99 against GlitchStep's $9.99. FuncBud Math Sequencer & Synth also leads on iOS requirement (13.0 vs 17.2). GlitchStep's advantage is review sentiment (89% vs 67%) and update cadence (every 3 days vs every 5 days). On rating, ratings volume, 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
FuncBud Math Sequencer & Synth costs $3.99 and GlitchStep $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for FuncBud Math Sequencer & Synth against 4.9 for GlitchStep. Both are backed by a comparable volume of ratings — 7 and 19 respectively. Written reviews are what separate them: 67% of FuncBud Math Sequencer & Synth's written reviews are positive against 89% of GlitchStep's.
FuncBud Math Sequencer & Synth ships an update every 5 days, GlitchStep every 3 days. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.
| Parameter | FuncBud Math Sequencer & Synth | GlitchStep |
|---|---|---|
| Price | $3.99 — better | $9.99 |
| Rating | 4.9 (7 ratings) | 4.9 (19 ratings) |
| Positive reviews | 66.7% of reviews | 88.9% of reviews — better |
| Number of ratings | 7 | 19 — better |
| Update frequency | Every 5 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 14 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Cem Olcay | Alex Matheu |
Customer experience
FuncBud Math Sequencer & Synth
GlitchStep
In-app purchases
FuncBud Math Sequencer & Synth
No in-app purchases
GlitchStep
No in-app purchases
Questions
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Is GlitchStep free?
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