RDM vs dSL1200
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
dSL1200
This app simulates a professional DJ turntable, offering a realistic touch experience for scratching and beatmatching. It plays your music library and supports AUv3 effects for creative mixing.
- Real-time turntable emulation
- Touch-based scratching and control
- Plays DRM-free music library
- Loop playback for breaks
- AUv3 effect rack integration
- Realistic 3D tonearm and lighting
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dSL1200 — Digital SL-1200 A professional DJ turntable simulator and music player for iPhone — a faithful real-time emulation of the most-used direct-drive deck in DJ history. Every part of the deck modeled in 3D, most touch-controllable. THE DECK, REBORN For nearly fifty years, one direct-drive turntable has been the de-facto industry standard in clubs, hip-hop, dance, and bedroom studios across the world. dSL1200 captures that deck — its motor, its slipmat, its quartz-locked strobe, its long-throw pitch fader, its tonearm tracking — as a working real-time simulation, not a skin or a sample player. REAL TOUCH, REAL SCRATCH Touch the vinyl and the platter responds the way a real one does. The motor keeps spinning underneath while you scratch, the slipmat couples back when you let go, and the audio rate follows your finger through every back-cue, body-trick rub, and crab. QUARTZ-LOCKED STROBE The multi-dot rim ring locks at exactly 33⅓ and 45 RPM through honest motor-rate-driven strobe physics. Pitch off center and the dots drift; lock to nominal and they freeze — the same visual feedback DJs have used to beat-match by eye for half a century. ACCURATE PITCH RANGE Faithful to the original long-throw pitch fader, with ±8% range, a center-detent snap, and strobe drift independent of motor rate. Beat-match by eye exactly the way the deck was designed for. YOUR MUSIC, ON THE DECK Plays MP3, FLAC, WAV, AIFF, and Apple Lossless files from your iOS Music library — any DRM-free track you've imported, ripped, or purchased. (DRM-protected Apple Music subscription streams cannot be played.) The vinyl label is generated from each track's metadata, with title and artist printed on the LP. LOOP PLAY FOR BREAKS Toggle loop mode and the track wraps with zero-sample-gap continuity — perfect for chopping b-boy breaks, drum loops, and battle samples. Cue points and back-cues across the loop boundary work transparently. AUv3 EFFECT RACK Load any installed Audio Unit Extension into a wet/dry parallel mix. Reverb, delay, filters, EQ, distortion — any AUv3 plugin you have on the device works. 3D TONEARM Drag the arm to cue, tap the cue lever to lift and drop, and watch it sweep from outer rim to inner spindle in real time with the audio playhead. The anti-skating dial, height adjustment, and counterweight are visually modeled on the 3D deck for fidelity to the original (not user-adjustable in this version). AUTHENTIC LIGHTING The pop-up inspection lamp lifts and lights with a warm bulb when toggled. A red strobe LED throws a sharp glowing arc across the platter rim — the same flashing red light that makes a working deck look alive in low-light club environments. 120 Hz METAL RENDERER Native 120 Hz on ProMotion devices, 60 Hz everywhere else, with PBR lighting, real-time reflections, vinyl groove geometry, and adaptive touch-density compensation so scratching feels identical regardless of refresh rate. ENGINEERED FOR DETAIL - End-to-end touch-to-audio response under 6 ms - Adaptive high-resolution resampler tuned for scratching - Streaming + ring buffer for tracks of any length - Slipmat physics, not state-machine fakery dSL1200 is an independent simulation product. It is not affiliated with, endorsed by, or sponsored by any manufacturer of physical turntable hardware. Any visual or behavioral resemblance to professional DJ equipment is offered as faithful artistic homage to a category of product that has shaped DJ culture for decades.
Screenshots
Verdict
The clearest difference is price: RDM at Free against dSL1200's $2.99. dSL1200's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement 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; dSL1200 costs $2.99 up front. RDM sells 1 one-off in-app purchase. dSL1200 asks for nothing beyond the download.
RDM ships an update monthly, dSL1200 every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | RDM | dSL1200 |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Monthly | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 61 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Minseok Song | Mike Wolak |
In-app purchases
RDM
- RDM Pro (Lifetime)$3.99
dSL1200
No in-app purchases









