Heptabase vs NOTE TO TONE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Heptabase
This visual note-taking application helps users learn complex subjects. The mobile version offers complete access to all your notes, journals, and whiteboards, allowing you to review your work on the go.
- Visual note-taking
- Learn complex topics
- Access cards and journals
- Read whiteboards
- Mobile access
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Heptabase is a visual note-taking app that helps you learn complex topics. The mobile app provides full access to all your cards and journals, and allows you to read all your whiteboards.
NOTE TO TONE
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When an idea will not come. When you have been thinking about one thing for too long. Something entirely unrelated — a stranger's conversation overheard — can be what unlocks it. NOTE TO TONE generates words with no connection to anything, to work the stiffness out of an over-focused mind. ■ Random words, to loosen your head What appears is a short phrase that does not quite make sense. "a dry hourglass" — "unravel the heron" — "desperate for the layover" Look at it, and force yourself to find a meaning in it. The moment you try, your head starts looking down a different road. That is the whole point. ■ Words, music, and keeping them The words are random, yet now and then one arrives that somehow shows you a scene — one you want to keep. So you can stock them. And from that word, a piece of music of its own is made, and kept alongside it. The same phrase always makes the same music. ■ The music is built on the spot, by a synthesiser Each phrase is measured along six axes — light, motion, weight, grit, space and warmth — and the music is built to match. Nothing is a recording being picked from a shelf. The sound is made by the engine from our music app ARPJAM Studio, a serious synthesiser that plays itself. That engine is built into NOTE TO TONE in full, so you can hear the music without owning ARPJAM Studio. ■ How to use it - Open the app and a phrase appears - Press SOUND and music is generated for that phrase - Press KEEP to save the phrase and its music; look back from Stocks - Once unlocked, a download button appears. It saves an ARPJAM settings file (a JAM file) to edit in ARPJAM Studio, or to add to a playlist in ARPJAM Player ■ Unlock Free use gives you three phrases and their music each time you open the app. A single purchase unlocks unlimited phrases and JAM file downloads. Nothing recurring. ■ Good for - A brief that will not start - Circling the same thought - Resetting your head before a meeting - Finding a way into a piece of music - Looking at something meaningless before sleep May a good idea find you. --- Credits: PIANO: Salamander Grand Piano V3 — Alexander Holm (CC BY 3.0)
Screenshots
Verdict
The clearest difference is in-app purchases: Heptabase at none against NOTE TO TONE's 1. NOTE TO TONE's advantage is update cadence (every 2 days vs weekly). On price, ads, device support 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
Both are free to download. NOTE TO TONE sells 1 one-off in-app purchase. Heptabase asks for nothing beyond the download.
Heptabase ships an update weekly, NOTE TO TONE every 2 days. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.
| Parameter | Heptabase | NOTE TO TONE |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (71 ratings) — better | — |
| Positive reviews | 70.0% of reviews | — |
| Number of ratings | 71 — better | — |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 16.0 |
| Further details — not scored | ||
| Size | 239 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Hepta Platforms, Inc | Takashi Tsunoda |
In-app purchases
Heptabase
No in-app purchases
NOTE TO TONE
- Unlock$0.99









