Comparison

BFM 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

BFM

This audio metering plugin offers a large, highly readable interface for monitoring audio levels across various modes like RMS, LUFS, and Peak. It provides multiple visual representations including text, bars, waveforms, VU meters, and spectrum analysis to help users keep their audio signals under control and avoid clipping.

Highlights
  • Large, readable interface
  • Multiple metering modes (RMS, LUFS, Peak)
  • Visualizations: Text, Bars, Waves, VU, Spectrum
  • Adjustable sensitivity and peak hold
  • Stereo image and phase response meters
  • Frequency spectrum analysis
Features
Read full description

BFM or Big F*ing Meters is a macOS, Windows, and soon to be iOS compatible Metering plug-in designed exactly how the name sounds... really f*ing big. With the main goal of readability we wanted to bring a meter that you can see from across the studio and keep your records clip-free. BFM currently offers 6 Modes with RMS, LUFs, Peak, and Peak Hold values, to give you a variety of views to keep your signal under control. The Text, Bars, Waves, VU Meters, Spectrum, & Time  let you decide how you want to keep track of your signal with multiple fonts/formats to view them in. Text gives you a quick look at just the values easy to see from across the room. This view offers the most values with RMS, Peak, Peak Hold, and LUFs (Short Term & Momentary with Maximum values and LUFS range) values available. Controllable sensitivity & peak hold time for all pages. Reset Peak Hold with a click off the value. Bar offers a more traditional meter for seeing the range of values showing RMS, Peak, Peak Hold, and LUFS. Correlation & Balance meters included to set your stereo image and phase response. Peak Hold resets on value click. Sensitivity changes on bar click. LUFS readings select on click. Included reference points for -24 (EBU), -16 (Apple Music), & -7 as a suggested maximum for most genres. Wave view gives you a look at your waveform after your channel effects with the ability to quickly mark in dB where you want to see your signals peak. To freeze click the waveform. To reset Peak Hold click the value. VU Meter Designed for a quick look at your overall levels. Featuring controllable Attack, Release, Minimum, and Maximum value control. Left/Right, Mid/Side, PPM, and LUFS options available. Click VU to enter dark mode. Spectrum is a simplified frequency spectrum view with 3 quality modes. Great for getting an overall look at where your frequencies are when mixing or editing. Tap to freeze and inspect. There is also the PEAK value displayed on this page. To reset Peak Hold click the value.

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
Read full description

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

BFM4 screens
FuncBud Math Sequencer & Synth4 screens

Verdict

The call

The clearest difference is review sentiment: BFM at 100% against FuncBud Math Sequencer & Synth's 67%. BFM also leads on price ($4.99 vs $5.99). FuncBud Math Sequencer & Synth's advantage is update cadence (every 6 days vs every 5 months) and rating (4.9 vs 4.6). On ratings volume, ads, in-app purchases and monetization model 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

BFM costs $4.99 and FuncBud Math Sequencer & Synth $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

FuncBud Math Sequencer & Synth holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 5 and 8 respectively. Written reviews complicate that: 100% of BFM's written reviews are positive against 67% of FuncBud Math Sequencer & Synth's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

BFM ships an update every 5 months, FuncBud Math Sequencer & Synth every 6 days. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
BFM versus FuncBud Math Sequencer & Synth: the parameters behind the verdict, then further details
ParameterBFMFuncBud Math Sequencer & Synth
Price$4.99 — better$5.99
Rating4.6 (5 ratings)4.9 (8 ratings) — better
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings58 — better
Update frequencyEvery 5 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size158 MB14 MB
Age rating9+4+
DeveloperOSC AudioCem Olcay

Customer experience

BFM

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

FuncBud Math Sequencer & Synth

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

In-app purchases

None

BFM

No in-app purchases

None

FuncBud Math Sequencer & Synth

No in-app purchases

Questions

Is BFM free?
BFM costs $4.99, with no in-app purchases.
Is FuncBud Math Sequencer & Synth free?
FuncBud Math Sequencer & Synth costs $5.99, with no in-app purchases.
Which has better reviews, BFM or FuncBud Math Sequencer & Synth?
FuncBud Math Sequencer & Synth is rated higher. BFM averages 4.6 out of 5 from 5 ratings, while FuncBud Math Sequencer & Synth averages 4.9 from 8 ratings.
Do BFM or FuncBud Math Sequencer & Synth have ads?
Neither BFM nor FuncBud Math Sequencer & Synth shows ads.
Which is updated more often, BFM or FuncBud Math Sequencer & Synth?
BFM ships an update every 5 months, and FuncBud Math Sequencer & Synth every 6 days. Most recently, BFM was updated on October 9, 2026 and FuncBud Math Sequencer & Synth on October 15, 2026.

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