Comparison

RP vs BFM

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

Head to head
About

RP

This app offers dual stereo delay lines for a vast array of audio effects, from simple echoes to complex soundscapes. It features individual bypass, modulation routing, and tempo synchronization options.

Highlights
  • Dual stereo delay lines
  • High- and Lowpass filters
  • Stereo spread and Looping
  • Separate modulation delay
  • Tempo sync via AudioUnit Host or Ableton Link
  • Delay times from 10ms to 2000ms
Features
Read full description

RP-1 - Dual Digital Delay FX Two separate (stereo) delay lines allow for a wide range of effects ranging from basic slapback and ping-ping type echos to complex modulations and soundscapes. * Overview - Digital Stereo Delay with High- and Lowpass filters, Stereo spread and Looping - Separate modulation Delay for Chorus, Vibrato, Flanger, Panning, Phaser & Tremolo effects - Both sections can be bypassed individually - Mod section can be routed pre or post delay - Delay Times from 10ms to 2000ms (or 1/32 to 2bars) - Tempo Sync via AudioUnit Host or Ableton Link - Tap Temp and Manual Tempo - Normal, Dotted and Triplet - Stereo Spread - Simple 1-Button Looping * Connections - AudioUnitV3 Effect - Inter-App Audio Effect - Audiobus (Filter) - Ableton Link - USB Audio Interface - Microphone

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.

Screenshots

RP3 screens
BFM4 screens

Verdict

The call

The clearest difference is rating: BFM at 4.6 against RP's 3.9. BFM also leads on review sentiment (100% vs 70%) and price ($4.99 vs $5.99). RP's advantage is update cadence (every 2 months vs every 5 months) and ratings volume (16 vs 5). On ads, in-app purchases, monetization model 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

RP costs $5.99 and BFM $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BFM holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 16 and 5 respectively. Written reviews point the same way: 70% of RP's written reviews are positive against 100% of BFM's.

UpkeepUpdate frequency

RP ships an update every 2 months, BFM every 5 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
RP versus BFM: the parameters behind the verdict, then further details
ParameterRPBFM
Price$5.99$4.99 — better
Rating3.9 (16 ratings)4.6 (5 ratings) — better
Positive reviews70.0% of reviews100.0% of reviews — better
Number of ratings16 — better5
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better12.0
Further details — not scored
Size13 MB158 MB
Age rating4+9+
DeveloperKai ArasOSC Audio

Customer experience

RP

All ratings16 ratings
Positive68.8%
Neutral6.3%
Negative25.0%
Written reviews20 reviews
Positive70.0%
Neutral10.0%
Negative20.0%

BFM

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

In-app purchases

None

RP

No in-app purchases

None

BFM

No in-app purchases

Questions

Is RP free?
RP costs $5.99, with no in-app purchases.
Is BFM free?
BFM costs $4.99, with no in-app purchases.
Which has better reviews, RP or BFM?
BFM is rated higher. RP averages 3.9 out of 5 from 16 ratings, while BFM averages 4.6 from 5 ratings.
Do RP or BFM have ads?
Neither RP nor BFM shows ads.
Which is updated more often, RP or BFM?
RP ships an update every 2 months, and BFM every 5 months. Most recently, RP was updated on November 6, 2026 and BFM on November 3, 2026.

Other comparisons