Progressions vs RS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Progressions
Generate unique chord progressions beyond traditional scales using mathematical algorithms. Control complexity and freedom to explore new harmonic territories. Features include arpeggiators, strumming patterns, and humanization for expressive musical output.
- Generate unique chord progressions
- Adjust complexity and freedom levels
- Block Chord, Arpeggiator, and Strummer modes
- Supports open and closed chords with selectable voicings
- Humanize chord and note timings
- Integrated ARP and STRUM pattern editor
- Sync multiple instances
Read full descriptionHide full description
Progressions is an AUv3 MIDI plugin for your favourite DAW. It can be used to generate a unique set of chords that are unrelated to traditional scales, which become predictable and repetative over time. Instead, Progressions uses a unique way of mathermaically generating a series of related chords using only a root note and mode (major or minor). Chord sequences are limited by the selected complexity and freedom levels, which mimic the way traditional composers of old would wander away from tonality and back again. The complexity level start off at Basic, which uses only the most common chords (I, IV, V and relative minor ii, iii, and vi triads). As you progress through the levels, you can add parallel majors and minors, sus and dom chords etc. At level 3 we start to introduce 6th and 7th chords, and then 9ths chords, all the way to 11ths, 13ths, Quartals and all their variations. The freedom level allows us to specify how far to drift away from tonality (the root), even allowing you to create never ending randomized soundscapes. Progressions allows you to quickly randomize a toolbox of chords, that can be played in a variety of modes (block chords, arpeggiated, or strummed). These can be synced to a host application, triggered remotely or pieced together into a song. Song mode allow you to change play modes on the fly as well as being able to control many features of the app in real time. Progressions supports open and closed chords with selectable voicings. It has an intelligent algorithm that attempts to align top notes of chords, add additional bass, and open chord padding to give equal weight to chords with only 3 notes. You can even play with rootless voicings. The Humanize section allows you to control chord and note timings, as well as set velocity variations to ensure things don't get too robitic. Progressions also features an integrated arpeggiator and strummming pattern editor. You can load up to 6 arp and 6 strum patterns at the same time and seemlessly switch between them manually, remotely, or using song mode. If you run multiple instances, Progressions allows you to sync your chord pads, song chain, arpeggiator / strum patterns between instances. Progressions can be loaded as a MIDI plugin or as an Instrument for those programs that don't support MIDI plugins (such as GB). Additionally when loaded as an instrument, you can use either internal sounds (soundfonts) or send MIDI directly to other MIDI instruments. Features • Block Chord, Arpeggiator and Strummer modes. • Supports open and closed Chords. • Varying complexity levels of chords. • Freedom levels control how far from the root key you can go. • Rootless voicing mode. • Open chord padding support. • Additional bass note mode. • Supports all common chord types. • Edit the preferred chord list to exclude certain chord types. • Input MIDI control for chords and play modes. • Automatic top note alignment of chords. • Hold Pedal support. • Built in ARP and STRUM editor. • Humanize options for chord and note velocity and timings. • Comprehensive Song Mode with 256 steps and looping. • Randomize chord progressions, arps and strumming patterns. • Route Chord/Arp/Strum modes & MIDI thru to any of 4 output ports. • Supports soundfonts when loaded as an Instrument plugin. • Sync multiple instances of Progressions. • AUv3 compatible MIDI plugin supporting Sync to Host.
RS
Read full descriptionHide full description
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.
Screenshots
Verdict
The clearest difference is price: RS at $5.99 against Progressions's $14.99. Progressions's advantage is iOS requirement (13.0 vs 17.6). On ads, in-app purchases and 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
Progressions costs $14.99 and RS $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Progressions | RS |
|---|---|---|
| Price | $14.99 | $5.99 — better |
| Rating | 4.1 (34 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 34 — better | — |
| Update frequency | Every 2 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 117 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 4Pockets.com | 淞元 石 |
In-app purchases
Progressions
No in-app purchases
RS
No in-app purchases









