# ScratchBud Vinyl Scratching FX vs RDM

The clearest difference is price: RDM at Free against ScratchBud Vinyl Scratching FX's $5.99. ScratchBud Vinyl Scratching FX's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

RDM is free to download; ScratchBud Vinyl Scratching FX costs $5.99 up front. RDM sells 1 one-off in-app purchase. ScratchBud Vinyl Scratching FX asks for nothing beyond the download.

ScratchBud Vinyl Scratching FX ships an update every 4 days, RDM monthly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ScratchBud Vinyl Scratching FX | RDM |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.6 (16 ratings)](https://appshunter.io/ios/app/scratchbud-vinyl-scratching-fx/id6738416965/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Monthly |
| Monetization | Paid | — |
| Size | 15 MB | 61 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cem Olcay](https://appshunter.io/developer/523633853) | [Minseok Song](https://appshunter.io/developer/1680507122) |

## What reviewers say

### ScratchBud Vinyl Scratching FX

[App page](https://appshunter.io/ios/app/scratchbud-vinyl-scratching-fx/id6738416965)

This app brings the tactile experience of vinyl scratching to your device. It offers a realistic UI, the ability to scratch live audio or samples, and advanced features like LFO automation and AUv3 integration for professional sound design.

**Highlights:** Vinyl-like UI with speed fader, Scratch live audio or loaded samples, Customizable crossfader with MIDI control, Automated scratches with LFO, 3-second audio recording and looping, AUv3 plugin support, Low-pass filter for sound design

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

**In-app purchases:** none


### RDM

[App page](https://appshunter.io/ios/app/rdm-random-dance-mixer/id6761620638)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RDM Pro (Lifetime) | $3.99 | one-time |


## Frequently asked questions

### Is ScratchBud Vinyl Scratching FX free?

ScratchBud Vinyl Scratching FX costs $5.99, with no in-app purchases.

### Is RDM free?

RDM is free to download, with in-app purchases available.

### Do ScratchBud Vinyl Scratching FX or RDM have ads?

RDM shows ads; ScratchBud Vinyl Scratching FX does not.

### Which is updated more often, ScratchBud Vinyl Scratching FX or RDM?

ScratchBud Vinyl Scratching FX ships an update every 4 days, and RDM monthly. Most recently, ScratchBud Vinyl Scratching FX was updated on October 30, 2026 and RDM on October 25, 2026.

---

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