ARPJAM vs Jayan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ARPJAM
This app generates evolving ambient music using two independent arpeggio engines. It features a generative drum machine, sound design tools, and external instrument synchronization. Save and recall your favorite musical setups.
- Dual arpeggio engines
- Generative drum machine
- Sound design controls
- External instrument sync (Ableton Link, MIDI Clock)
- Save and recall presets
- Built-in timer
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ARPJAM is an arpeggio synthesizer that generates ever-evolving ambient music. Layer two independent arpeggio engines, each with its own waveform, scale, and pattern, and let the app weave an endless soundscape that shifts and breathes on its own. ■ Two Arpeggio Engines ARP A and ARP B run simultaneously, each with its own mode, scale, range, waveform, filter, and envelope. Five pattern modes: Random & Chord, Repeat, Random Single, Skank, and Drone. ■ Generative Drums A probability-based drum machine. Tune the firing density, double-hit chance, and open/closed hi-hat ratio for kick, snare, and hihat to create rhythms that evolve naturally alongside the arpeggio. ■ Sound Design Four waveforms — sine, triangle, sawtooth, square. Adjust the low-pass filter, attack, and overdrive per engine. Add depth with ping-pong delay and reverb. ■ Sync with External Instruments [NEW in v1.4] Ableton Link support — wirelessly sync tempo and bar phase with Ableton Move, Live, Koala, and other Link-enabled instruments on the same Wi-Fi network. USB-C MIDI Clock reception is also supported. Sample-accurate timing alignment, with a fine-tune Offset slider for each setup. ■ Redesigned Settings Panel [v1.4] Settings are now organized into five colored sections — Oscillator, Filter, Envelope, Algorithm, and Effects. Each section collapses individually or in bulk, and the state persists between launches. Jump directly to any section via the side rail (iPad) or sticky bar (iPhone). Clear square ON/OFF switches and vivid theme colors — orange for ARP A, lime for ARP B, cyan for Drums — make the whole panel far easier to navigate. ■ Save & Recall Four start presets (Default + SAVE 1/2/3) let you recall your favorite setups with a single tap from the start screen. Presets can be exported and imported as .arpjam files to share with other ARPJAM users. ■ Built-in Timer Choose countdown or infinite mode. The timer fades out with a gentle resolving chord — perfect as a sleep timer or as a companion to meditation. • 8 scales including pentatonic modes • 12 keys (Just Intonation / Equal Temperament switchable) • Groove control for swing feel • BPM 30–200 • English / Japanese language support • Ableton Link / MIDI Clock sync
Jayan
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Jayan is a generative lo-fi radio station that plays in real time on your device. Choose a scene, press Play, and settle into warm chords, relaxed rhythms, and ambient textures. Six stations offer different musical moods: late-night jazz, tape study, rainy keys, dusty beats, bossa, and ambient night. Recurring melodic themes develop through calls, responses, changing harmonies, and intentional space. A calm illustrated player keeps listening simple. Pause and resume the same session, save a favorite sound to return to later, or set a sleep timer. Auto DJ can guide the music through new scenes while preserving your listening volume. Open the Sound Studio to adjust mood, warmth, swing, melodic space, rain, instrument colors, and the mix. Share a recipe to restore the same generated session on another device. Background playback and lock-screen controls keep your music close when the app is out of view. Highlights - Six distinct illustrated stations with locally generated music - Developing melodies, varied bass and drum phrases, and balanced output - Local saved sessions and a cancelable sleep timer - Reliable pause/resume, background audio, and lock-screen controls - Sound Studio, recipe sharing, and playback diagnostics - Native iPhone and iPad layouts with English and Simplified Chinese support No account or fixed streaming playlist is required.
Screenshots
Verdict
The clearest difference is in-app purchases: Jayan at none against ARPJAM's 1. ARPJAM's advantage is update cadence (daily vs every 6 weeks) and iOS requirement (15.0 vs 17.0). On price, ads 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
Both are free to download. ARPJAM sells 1 one-off in-app purchase. Jayan asks for nothing beyond the download.
ARPJAM ships an update daily, Jayan every 6 weeks. The most recent releases landed on September 23, 2026 and September 12, 2026 respectively.
| Parameter | ARPJAM | Jayan |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Daily — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Takashi Tsunoda | GenPy Inc. |
In-app purchases
ARPJAM
- Remove Ads$0.99
Jayan
No in-app purchases








