BlueNote2 vs ARPJAM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BlueNote2
This music app allows users to create sounds and chords by tapping on a visual representation of frequencies. It offers a unique way to explore musical intervals and scales with a simple, intuitive interface.
- Visual frequency expression
- Tap to sound creation
- Explore musical intervals
- Major and minor chord generation
- Simple sign wave timbre
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BlueNote 2 is an instrument for the iPhone, born of the desire to listen to the sound between minor and major. The frequency of the chord is expressed visually. Tap two or more sounds, but the interval of the pressed point and the frequency of the sound are inversely proportional, so you can sound like the interval you pressed as the string of a string instrument. By the way, the timbre is a perfect sign wave. As everyone's reviews increase, we are going to make it evolve, so we appreciate your kind appreciation. *** How to use *** 1, tapping a certain place and tapping another place sounds. 2, It is not strict "C","D","E", but you can feel the scale by pushing the circumference from the outside in order. In the state of tapped 3 and 2 places the circle of the figure Tap on the intersection, a beautiful chord It will ring. The intersection of green and blue is major (major), red The intersection of blue and blue is minor. 4, tap the M mark on the top and tap two places in the figure, you will hear a major (big) sound. By the way, in the major code, the ratio of the sides of the triangle is 10: 12: 15
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
Screenshots
Verdict
The clearest difference is rating: ARPJAM at 5.0 against BlueNote2's 3.7. ARPJAM also leads on update cadence (daily vs every 12 months). BlueNote2's advantage is in-app purchases (none vs 1) and ratings volume (3 vs 1). On price, review sentiment, ads and monetization model 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. BlueNote2 asks for nothing beyond the download.
ARPJAM holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 33% and 33% positive.
BlueNote2 ships an update every 12 months, ARPJAM daily. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | BlueNote2 | ARPJAM |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 33.3% of reviews | 33.3% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 12 months | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 16 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Yaneurabeya | Takashi Tsunoda |
Customer experience
BlueNote2
ARPJAM
In-app purchases
BlueNote2
No in-app purchases
ARPJAM
- Remove Ads$0.99









