JFE vs EM3720
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JFE
Access and manage your data sheets offline. Save, export, and email documents in PDF format from your mobile device.
- Offline access to data sheets
- Save and export PDFs
- Email data sheets
- Cross-device compatibility
Read full descriptionHide full description
Get your data sheets anywhere, even if you don't have an internet connection! You can export, save, and email PDF formatted data sheets.
EM3720
Read full descriptionHide full description
EM3720 App is for use with the EM3720 Meter. It enables your iOS device to View, Monitor, and Capture Pictures. As well as, Data Log the date/time stamped readings of the Smart Meter to Phones & Tablets. The exported test results can be shared via EMAIL, TEXT, PICTURE, and to EXCEL Wirelessly connects via Bluetooth to view AC voltage, DC voltage, Resistance, Continuity and Diode Test Saves Time and Money: 1.Identifies, alerts, captures and sends data instantly 2.Maximizes time – less re-checking 3.Problems captured - so repairs are easier Works on all iPhone, IPads, IPad Touches
Screenshots
Verdict
The clearest difference is iOS requirement: EM3720 at 11.0 against JFE's 15.0. On price, update cadence, ads and in-app purchases 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.
JFE ships an update every 3 months, EM3720 every 4 months. The most recent releases landed on October 17, 2026 and October 26, 2026 respectively.
| Parameter | JFE | EM3720 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 6 MB |
| Age rating | 4+ | 17+ |
| Developer | Melaroo LLC | ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD. |
In-app purchases
JFE
No in-app purchases
EM3720
No in-app purchases
