# RP vs TfxMod

The clearest difference is rating: TfxMod at 4.8 against RP's 3.9. TfxMod also leads on review sentiment (100% vs 70%). RP's advantage is update cadence (every 2 months vs every 3 months) and price ($2.99 vs $4.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

RP costs $2.99 and TfxMod $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TfxMod holds the better App Store score, 4.8 against 3.9. Both are backed by a comparable volume of ratings — 16 and 6 respectively. Written reviews point the same way: 70% of RP's written reviews are positive against 100% of TfxMod's.

RP ships an update every 2 months, TfxMod every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | RP | TfxMod |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | [3.9 (16 ratings)](https://appshunter.io/ios/app/rp-1-delay/id1079530569/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/tfxmod/id1524639578/reviews)** |
| Number of ratings | **16** | 6 |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | Paid |
| Size | 13 MB | 1 MB |
| Requires iOS | **9.0** | 13.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## 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


### TfxMod

[App page](https://appshunter.io/ios/app/tfxmod/id1524639578)

This app provides a chorus and flanger audio effect plugin for mobile devices. It emulates the sound of vintage bucket brigade devices with adjustable parameters for delay, feedback, and modulation. It can be used with host applications to process audio input.

**Highlights:** Chorus and flanger effects, BBD-inspired delay lines, Adjustable delay time, feedback, and modulation, Variable LFO rate and waveform, Low-pass and high-pass filters, Stereo width control

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RP free?

RP costs $2.99, with no in-app purchases.

### Is TfxMod free?

TfxMod costs $4.99, with no in-app purchases.

### Which has better reviews, RP or TfxMod?

TfxMod is rated higher. RP averages 3.9 out of 5 from 16 ratings, while TfxMod averages 4.8 from 6 ratings.

### Do RP or TfxMod have ads?

Neither RP nor TfxMod shows ads.

### Which is updated more often, RP or TfxMod?

RP ships an update every 2 months, and TfxMod every 3 months. Most recently, RP was updated on October 24, 2026 and TfxMod on October 24, 2026.

---

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