Heptabase vs Tangram EMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Heptabase
This visual note-taking application aids in understanding complex subjects by providing access to all your notes and journals. You can also view your entire whiteboards on the go.
- Visual note-taking
- Access notes and journals
- Read whiteboards
- Learn complex topics
- 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.
Tangram EMS
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Tangram EMS is a smart energy management system designed to help enterprises monitor electricity usage in real time, analyze energy consumption, generate reports, and reduce both energy costs and carbon emissions.
Screenshots
Verdict
The clearest difference is update cadence: Heptabase at every 5 days against Tangram EMS's every 5 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Heptabase ships an update every 5 days, Tangram EMS every 5 months. The most recent releases landed on November 12, 2026 and October 28, 2026 respectively.
| Parameter | Heptabase | Tangram EMS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (71 ratings) — better | — |
| Positive reviews | 70.0% of reviews | — |
| Number of ratings | 71 — better | — |
| Update frequency | Every 5 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 14.0 — better |
| Further details — not scored | ||
| Size | 241 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Hepta Platforms, Inc | TANGRAM Company Limited. |
Bugs and requests
Heptabase
Reported bugs
13 issues- Unable to sign up for trial
- App won't let you sign in without an account
- Cannot sign up on iOS
- Web sign-up process stuck
- MacBook operation not intuitive
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- Whiteboard zoom/pan issues on trackpad
- Accidental new item creation while typing
- iPad app virtually useless for editing
- Mobile app difficult to use, not intuitive
- iOS apps cannot drag/re-order cards
- iPad apps cannot place cards
- Performance issues on opening app
- PDF annotation not supported on iPad
Requested features
6 requests- Tables and Kanban boards
- iPad app feature parity
- Drawing on whiteboards with iPad pen
- More AI integration
- Drag and re-order cards on iOS apps
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- Performance improvements
Tangram EMS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Heptabase
No in-app purchases
Tangram EMS
No in-app purchases
