RS vs DelayScaper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RS
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RS-1 turns your mobile device into a hardware-grade sequencer that feels like the real thing. Built for iPhone and iPad, it packs 6 tracks (8 on iPad), a tactile 16-step grid, and 8 joinable patterns you can chain into full arrangements. Drive any piece of hardware or software instrument with real-time MIDI 2.0 over Bluetooth, USB, or Wi-Fi, and lock everything to your rig with Ableton Link sync. Five unique tools let you edit, alter, and even scramble your patterns on the fly, building complex polyrhythms and melodies with just a few tweaks. The interface borrows its workflow straight from classic hardware sequencers: every control for every track sits right in front of you, so you stay locked into your musical ideas instead of menu diving. All of it slips right into your pocket. SEQUENCING The beat grid runs six horizontal tracks across sixteen vertical steps. Tap a cell to toggle its trigger gate. Each track has its own free-running playhead, so you can build polymeter by giving different tracks different effective lengths. Eight independent patterns share the same track routing - MIDI channels, mute/solo states, and output destinations carry across every pattern. Hold down the pattern buttons to chain them into a sequence, and use Copy/Paste to duplicate a pattern in a tap. FIVE CREATIVE TOOLS 1. Note Input Tool - Edit a track in focus view. Tap a track header to open five tabs, each assigning a per-step value: - Pitch: Set each step's pitch, quantised to a scale. Custom scales supported. - Velocity: Rescale overall velocity with a single slider. - Gate: Adjust note duration per step. - Ratchet: Set the number of repeats; a slider adjusts the repeat interval. - Chance: Probability-based step removal. 2. CC Tool - Edit a track's MIDI CC messages in focus view. Tap a track header to open five tabs: four CC slots plus a Program Change tab. Draw automation curves for filter sweeps and modulation, or send program changes manually for preset switching. 3. Combine Tool - Stitch adjacent steps into longer, legato notes. Drag across cells to select, then press Combine to join them. 4. Time Tool - Shape playback per track: Division (step length), Shift (rotate the pattern in time), Swing, and Loop length. 5. Order Tool - Choose from 19 play orders, ranging from straight patterns to algorithmic, generative ones. MIDI & CONNECTIVITY SETUP 1. Open the Config menu. For a wireless connection: - Bluetooth LE: Connect iOS to an external Bluetooth MIDI device. Tap "Scan" to discover nearby devices, then tap "Connect" to pair. Pairing happens once; the device reconnects automatically from then on. - Bluetooth Peripheral: Connect to macOS over Bluetooth. Turn on the switch, then open the Bluetooth page in macOS Audio MIDI Setup and click Connect. - Network MIDI: Connect to macOS over Wi-Fi. open macOS Audio MIDI Setup, create a network session, and connect to your device. - USB MIDI: Available when a USB-to-MIDI OUT cable is plugged into your device. Once connected, the device appears in the output selection. 2. Choose your MIDI output destination from the drop-down menu. NOTE: Wireless connections can introduce latency and jitter. For the most stable timing, USB is recommended. MIDI 2.0 output: per-track channel routing. Supports MIDI clock sync and MIDI transport sync. Ableton Link: Automatic beat synchronisation across devices and apps on the same network that support Link. Tempo changes follow instantly, and Start/Stop sync is available. PRESETS 16 preset slots capture everything - all patterns, tool states, MIDI routing, and settings. Slots are colour-coded for quick identification, and you can load or save in a single tap. PERMISSIONS - Bluetooth: Used to connect with Bluetooth MIDI devices. - Wireless Data: Used to connect to a macOS network Wi-Fi MIDI session. It does not access the internet. - Find Devices on Local Network: Used for Ableton Link.
DelayScaper
This audio effects plugin offers dual dynamic stereo delays that respond to input intensity and note spacing. It allows for experimental sound design, atmospheric textures, and even looping, with bonus effects like octave pitch-shifting and random reversing.
- Dual stereo delay modules
- Dynamic parameter response to audio input
- Host tempo syncable delay times
- Max 8-second delay time
- Octave Grains effect
- Random Reverse effect
- Envelope followers for modulation
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DelayScaper is an AUv3 effects plugin that can run standalone, or in any AUv3 compatible host such as Logic Pro, GarageBand or AUM. DelayScaper currently runs on iOS (iPad & iPhone) and macOS (Intel & Silicon) and is available as a Universal Purchase from the Apple App Store. Overview DelayScaper is a dual dynamic delay effect designed to produce inspiring, and sometimes very unpredictable results that literally responds dynamically to audio input. Playing an instrument through DelayScaper can be especially rewarding when you adjust your playing to what you’re hearing, because DelayScaper can be configured to constantly modify its parameters according to the intensity and spacing of your notes. It’s like having five extra pairs of hands twiddling knobs for you! At its core, DelayScaper comprises two identical stereo delay modules that can run in series or parallel. While it can cover “normal” delay duties, including host tempo syncable delay times, DelayScaper is really for those who like to experiment with sound, especially in the atmospheric and ambient realm. With a maximum delay time of 8 seconds, you can even use DelayScaper as an old-school “free looper” for “Frippertronics” type evolving soundscapes. DelayScaper also features two bonus “one knob FX” effects that are both original designs that complement the core delay processing: “Octave Grains” is a randomised and delayed pitch-shifting algorithm that sits somewhere between a pitch-shifted delay and granular shimmer effect. “Random Reverse” does what you might expect it to do, but often in an unexpected way! Both algorithms will grab random sections of the incoming audio, process it, then feed those into the main delay processing. The dynamics section is where DelayScaper comes to life, and includes dedicated envelope followers for both delays, which can then be used as a modulation source for up to 5 delay parameters for each delay. For example, you can modulate the mix level to create a “ducking delay”, or modulate tone so the delay repeats get brighter or darker depending on how hard or softly you play. A “cascade” feature sends the output of the first delay into the second, allowing you to fine-tune the balance between parallel and series mode.
Screenshots
Verdict
The clearest difference is device support: DelayScaper at 4 against RS's 2. DelayScaper also leads on price ($4.99 vs $5.99) and iOS requirement (12.0 vs 17.6). On ads and in-app purchases 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
RS costs $5.99 and DelayScaper $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | RS | DelayScaper |
|---|---|---|
| Price | $5.99 | $4.99 — better |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | — | Daily |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | 淞元 石 | Rob Jackson |
In-app purchases
RS
No in-app purchases
DelayScaper
No in-app purchases








