Sinusoid vs FuncBud Math Sequencer & Synth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sinusoid
Create music with a retro 8-bit inspired sound machine. Features 4 channels for tones and drums, with extensive sound sculpting options like filters, modulation, and effects. Export your creations and integrate with other music apps.
- 4 sound channels (3 tones, 1 drum/noise)
- Extensive audio parameters (envelope, vibrato, glide, filter)
- Ring modulation and FM synthesis
- Arpeggiator, delay, and bit crusher effects
- MIDI input and output support
- Audiobus, IAA, and AUv3 integration
- AIFF export and in-app music player
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Sinusoid is a tracker/sequencer sound machine inspired by retro 8 bit game consoles. It has 4 sound channels where 3 play tones and 1 plays drums and noise. It has audio parameters like pan, amplitude envelope, vibrato, pitch glide, a resonant filter and second oscillator for ring modulation and fm. Further sculpt the sound with an arpeggiator, delay and bit crusher. Export songs to AIFF and listen to them in the in app music player or share them with other apps. MIDI can be used to control parameters, play and input notes. MIDI out makes it possible to play other synths with sinusoid using Core MIDI, Bluetooth, IAA MIDI or AUv3 MIDI. Connect to other sound apps using Audiobus, Inter App Audio or AUv3. +++ 3 tone channels: sinusoid, square, triangle, saw, pulse (75%, 50%, 25% or 12.5%) +++ 1 drum/noise channel +++ Stereo pan +++ Amplitude envelope (attack, length and release) +++ 2nd oscillator for fm and ring modulation +++ Vibrato +++ Pitch glide +++ Resonant filter +++ Arpeggio/stutter +++ Tape delay +++ Bit/samplerate crush +++ Per note ability to override all channel audio parameters +++ Copy/paste between devices on the same network +++ Save and share projects using “open with” and files app drag’n drop +++ Export to songs to AIFF +++ Core MIDI, Bluetooth, IAA MIDI, AUv3 MIDI +++ Audiobus, IAA and AUv3
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.
Screenshots
Verdict
The clearest difference is update cadence: FuncBud Math Sequencer & Synth at every 5 days against Sinusoid's every 3 months. FuncBud Math Sequencer & Synth also leads on price ($3.99 vs $4.99). Sinusoid's advantage is iOS requirement (9.0 vs 13.0). On rating, review sentiment, ratings volume and ads 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
Sinusoid costs $4.99 and FuncBud Math Sequencer & Synth $3.99 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 Sinusoid against 4.9 for FuncBud Math Sequencer & Synth. Both are backed by a comparable volume of ratings — 13 and 7 respectively. Written reviews are what separate them: 69% of Sinusoid's written reviews are positive against 67% of FuncBud Math Sequencer & Synth's.
Sinusoid ships an update every 3 months, FuncBud Math Sequencer & Synth every 5 days. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.
| Parameter | Sinusoid | FuncBud Math Sequencer & Synth |
|---|---|---|
| Price | $4.99 | $3.99 — better |
| Rating | 4.9 (13 ratings) | 4.9 (7 ratings) |
| Positive reviews | 68.8% of reviews — better | 66.7% of reviews |
| Number of ratings | 13 — better | 7 |
| Update frequency | Every 3 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 7 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Erik Sigth | Cem Olcay |
Customer experience
Sinusoid
FuncBud Math Sequencer & Synth
In-app purchases
Sinusoid
No in-app purchases
FuncBud Math Sequencer & Synth
No in-app purchases
Questions
Is Sinusoid free?
Is FuncBud Math Sequencer & Synth free?
Which has better reviews, Sinusoid or FuncBud Math Sequencer & Synth?
Do Sinusoid or FuncBud Math Sequencer & Synth have ads?
Which is updated more often, Sinusoid or FuncBud Math Sequencer & Synth?
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