Chordjam vs Harmony Bloom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chordjam
This app generates unique chord and progression patterns using randomized parameters. It supports MPE for polyphonic gliding chords and can feed any MIDI-compatible synth or sampler. It's a real-time compositional assistant for creating complex musical structures.
- User-guided randomization for chords and progressions
- Variety of scale, chord, voicing, rhythm, and progression types
- MPE support for polyphonic gliding chords
- Real-time compositional assistant
- MIDI output via WiFi or cable
- Ableton Link sync
Read full descriptionHide full description
Chordjam is an innovative MIDI plugin that builds chords and progression patterns through intuitive user-guided randomization. Choose from a variety of scale types, Chord types, voicing parameters, rhythms and progressions or have its powerful sequencer conjure up unlimited progression patterns for you, based on any combination of settings, serving up unpredictable but always-musical variations. Create unique and complex chord structures and infinitely evolving progressions. Chordjam now supports MPE technology (MIDI Polyphonic Expression) to deliver polyphonic portamento/gliding chords which allows you to bend from any chord to any chord, both in real-time chord triggering or using the sequencer’s progression patterns. Chordjam is the ultimate real-time compositional assistant for iPad. Designed to feed any Synth, Sampler and anything that accepts MIDI signal both software and hardware. Featuring MIDI output support over WiFi or MIDI cable. Chordjam also supports Ableton Link for tight sync between apps on the same network.
Harmony Bloom
This app generates MIDI data with polyrhythmic patterns and accompanying visuals. It offers extensive control over musical sequences, including scale selection and randomization, and allows for audio generation in its standalone version. MIDI capture and export features facilitate integration into digital audio workstations.
- Polyrhythmic MIDI generation
- Visualizer for note patterns
- Standalone audio generation
- Scale Selector with 57 options
- MIDI Capture and Export
- Preset management
Read full descriptionHide full description
Harmony Bloom (Standalone and AUv3), is a groundbreaking MIDI generator that seamlessly integrates polyrhythmic patterns with stunning visuals. It revolutionizes musical creativity by enabling MIDI data transmission to compatible devices, enhanced by its visual experience. Distinct from typical MIDI generators, Harmony Bloom offers unique functionalities. The standalone version's ability to generate audio, with five selectable sounds, broadens its usability. It features a comprehensive control set for musical creation, including a Scale Selector with 57 options for melodic consistency, and various offset controls for sequence customization. The software's visual component, the Sequencer Visualizer, displays intricate patterns of notes, enhancing the creative process. Key features like MIDI Capture and Export simplify the integration of sequences into digital audio workstations, making Harmony Bloom a valuable tool for music production. Its adaptability is a core strength, with features like 'Use Input Notes' and 'Root Mode' ensuring dynamic musical responses and coherence. 'Global Randomization' allows for exploratory creativity, offering a blend of technical control and artistic freedom. Harmony Bloom emphasizes user experience, providing intuitive preset management. This focus on accessibility and flexibility makes it an ideal choice for musicians, producers, and composers eager to explore new musical dimensions. In essence, Harmony Bloom is not just a MIDI generator but a comprehensive tool for musical exploration and creation. Its combination of polyrhythmic generation, visual feedback, and detailed musical control positions it as a standout instrument for creative and professional applications.
Verdict
The clearest difference is rating: Harmony Bloom at 4.9 against Chordjam's 4.3. Harmony Bloom also leads on review sentiment (78% vs 50%) and update cadence (monthly vs every 4 months). On price, ratings volume, 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
Chordjam costs $9.99 and Harmony Bloom $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Harmony Bloom holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 27 and 28 respectively. Written reviews point the same way: 50% of Chordjam's written reviews are positive against 78% of Harmony Bloom's.
Chordjam ships an update every 4 months, Harmony Bloom monthly. The most recent releases landed on September 26, 2026 and September 19, 2026 respectively.
| Parameter | Chordjam | Harmony Bloom |
|---|---|---|
| Price | $9.99 | $9.99 |
| Rating | 4.3 (27 ratings) | 4.9 (28 ratings) — better |
| Positive reviews | 50.0% of reviews | 78.3% of reviews — better |
| Number of ratings | 27 | 28 — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPad |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 19 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | AUDIOMODERN | MNR Development LLC |
Customer experience
Chordjam
Harmony Bloom
In-app purchases
Chordjam
No in-app purchases
Harmony Bloom
No in-app purchases


