ScratchBud Vinyl Scratching FX vs RDM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScratchBud Vinyl Scratching FX
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.
- 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
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ScratchBud makes it easy to bring the feel of vinyl scratching to your iOS or Apple Silicon device. Whether you’re a DJ, producer, or just love experimenting with sound, ScratchBud has everything you need to start scratching. Key Features: Vinyl-Like UI: Intuitive interface mimics a real DJ turntable, complete with adjustable speed fader and motor controls. Scratch Anything: Use live audio input, a loaded sample file, or the included classic “aaah” and “fresh” samples. Customizable Crossfader: Seamlessly blend between the audio input source and FX output, with MIDI note control options. Auto Scratch with LFO: Automate scratches with adjustable LFO parameters, including rate, amount, waveform, and DAW tempo sync. Advanced Recording Options: Capture, loop, and scratch up to 3 seconds of audio, with configurable recording behaviors. AUv3 Integration: Full support for AUv3 hosts, exposing all parameters for MIDI CC control and automation. Professional Sound Design: Refine your scratch sound with built-in low-pass filter controls for cutoff and resonance. Start scratching immediately with included classic samples or load your own. ScratchBud works as a standalone app or an AUv3 plugin, making it a versatile tool for your studio or live performances.
RDM
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Build your own random dance practice with RDM: Random Dance Mixer. Add local audio files or YouTube video links, choose each track’s start and end points, adjust volume, and prepare your shuffle order and countdown. Keep the next track a surprise while you dance. FREE FEATURES • Up to 5 local playlists and 5 stream playlists • Playback sections, volume, shuffle and countdown settings • Stream playlist share codes: 1 per day, valid for 24 hours • Restore an existing Google Drive backup RDM PRO — OPTIONAL ONE-TIME PURCHASE • Unlimited local and stream playlists • Practice mode with track repeats, full rounds and adjustable rest • Remove RDM’s own advertisements • Create Google Drive backups, optionally including local audio • Up to 20 stream share codes per day Share codes contain YouTube playlist references, not audio files. Share limits reset at 00:00 UTC. The sharing feature may be unavailable when temporarily disabled by the service. Google sign-in is optional and only required for Drive features. Drive access is limited to RDM’s hidden app-data area. RDM does not extract or download YouTube audio. YouTube controls video availability and ads, which may still appear with Pro. Use local audio you have the right to use. The app displays the actual price from your store before purchase. Pro is a non-consumable purchase, not a subscription. Purchases can be restored through the same App Store account.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ScratchBud Vinyl Scratching FX | RDM |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.6 (16 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 4 days — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 15 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Cem Olcay | Minseok Song |
In-app purchases
ScratchBud Vinyl Scratching FX
No in-app purchases
RDM
- RDM Pro (Lifetime)$3.99
Questions
Is ScratchBud Vinyl Scratching FX free?
Is RDM free?
Do ScratchBud Vinyl Scratching FX or RDM have ads?
Which is updated more often, ScratchBud Vinyl Scratching FX or RDM?
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