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 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.
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 weekly 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 weekly, Tangram EMS every 5 months. The most recent releases landed on October 1, 2026 and September 19, 2026 respectively.
| Parameter | Heptabase | Tangram EMS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (70 ratings) — better | — |
| Positive reviews | 69.0% of reviews | — |
| Number of ratings | 70 — better | — |
| Update frequency | Weekly — 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 | 242 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Hepta Platforms, Inc | TANGRAM Company Limited. |
In-app purchases
Heptabase
No in-app purchases
Tangram EMS
No in-app purchases
