# RP vs BFM

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.

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

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.

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.

## The numbers

| Metric | RP | BFM |
| --- | --- | --- |
| Price | $5.99 | **$4.99** |
| Rating | [3.9 (16 ratings)](https://appshunter.io/ios/app/rp-1-delay/id1079530569/reviews) | **[4.6 (5 ratings)](https://appshunter.io/ios/app/bfm-metering-suite/id6450574108/reviews)** |
| Number of ratings | **16** | 5 |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Paid | Paid |
| Size | 13 MB | 158 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [OSC Audio](https://appshunter.io/developer/1693533681) |

## What reviewers say

### RP

[App page](https://appshunter.io/ios/app/rp-1-delay/id1079530569)

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:** Vision Pro support

**In-app purchases:** none


### BFM

[App page](https://appshunter.io/ios/app/bfm-metering-suite/id6450574108)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*