e vs 4D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
e
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The e-Gro app provides rootzone information that puts you in the driver’s seat. The reliable platform paired with our high-quality sensors enable you to monitor and steer your crops. View sensor data from all rooms in your facility and monitor key measurements such as EC, WC, room temperatures and relative humidity. Powered by Grodan
4D
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4D-Bios Co., Ltd. integrates research and development, production, sales, and technical services, promoting systematic, intelligent, and standardized agricultural planting solutions, system equipment, and services globally.
Screenshots
Verdict
The clearest difference is update cadence: 4D at every 2 weeks against e's every 33 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.
e ships an update every 33 months, 4D every 2 weeks. Both last shipped on November 4, 2026.
| Parameter | e | 4D |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 33 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Rockwool International A/S | 4D Bios Inc. |
In-app purchases
e
No in-app purchases
4D
No in-app purchases
