MathMusic vs Harmony Bloom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MathMusic
This app allows users to create music by manipulating virtual guitar strings to change pitch. Explore chords, play individual notes rhythmically, and save your creations to layer melodies over accompaniments.
- Adjustable virtual guitar strings for pitch control
- Chord creation with major and minor variations
- Original chords not found on other instruments
- Arpeggio mode for rhythmic note playback
- Tempo control
- Save and layer musical notes for accompaniment and melody
Read full descriptionHide full description
Now let's open the app. First, press the button 1. There was a sound and a red line came out. Think of this as a guitar string. A square with a rotating end of the string. Drag this to change the pitch. It goes up and down. Playing a long string on a guitar produces a low note, and playing a short string produces a high note. Next, let's press the button 2. This time, the number of strings has increased and chords have come out. If you press 3 again, it will become a triad, but please press the Maj button here. How about that. The sound is brighter (major). In addition, Min button. It became a sad sound (minor). Visually, the mood changes a lot, even though it changes only slightly. We have prepared all the well-known chords, so please try them out. We also prepared original chords with this app. Some sounds are difficult to produce with other instruments. With this app, you can play all chords up to 6 chords. In addition, you can press the Arpeg button to play one note at a time, creating a rhythm. You can change the tempo with the button such as Bpm Up on the white side at the bottom left. Now try pressing the Save button at the bottom left. The current sound has been saved and is now Note 1. When you press this Note, the previously saved sound will be output, and you can combine new sounds on top of it. As a basic usage, you can play a song by using the saved sound (blue) as an accompaniment and the current sound (red) as a melody. Please try playing your own music!
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.
Screenshots
Verdict
The clearest difference is price: MathMusic at Free against Harmony Bloom's $9.99. MathMusic also leads on update cadence (every 2 days vs monthly) and review sentiment (100% vs 78%). Harmony Bloom's advantage is ratings volume (28 vs 2). On rating, ads, in-app purchases and iOS requirement 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
MathMusic is free to download; Harmony Bloom costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for MathMusic against 4.9 for Harmony Bloom. That said, the two scores are not equally well evidenced: Harmony Bloom has 28 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 100% of MathMusic's written reviews are positive against 78% of Harmony Bloom's.
MathMusic ships an update every 2 days, Harmony Bloom monthly. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.
| Parameter | MathMusic | Harmony Bloom |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 5.0 (2 ratings) — better | 4.9 (28 ratings) |
| Positive reviews | 100.0% of reviews — better | 78.3% of reviews |
| Number of ratings | 2 | 28 — better |
| Update frequency | Every 2 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 31 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Yaneurabeya | MNR Development LLC |
Customer experience
MathMusic
Harmony Bloom
In-app purchases
MathMusic
No in-app purchases
Harmony Bloom
No in-app purchases





