PDF Reader vs EM3720
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Reader
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PDF Reader-store is your essential app for managing and viewing all your important documents. Go beyond just PDFs! Our app offers robust support for opening and displaying PDFs, Excel spreadsheets, Word documents, and various image files, all in one convenient place. Whether you're reviewing a report, checking a spreadsheet, or viewing an image, PDF Reader-store provides a seamless and intuitive experience. Keep your files organized and accessible, ensuring you're always prepared. Download PDF Reader-store today and streamline your document viewing!
EM3720
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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 ads: EM3720 at none against PDF Reader's shown. EM3720 also leads on update cadence (every 4 months vs every 114 months) and iOS requirement (11.0 vs 14.0). On price, 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.
PDF Reader ships an update every 114 months, EM3720 every 4 months. The most recent releases landed on May 17, 2026 and September 18, 2026 respectively.
| Parameter | PDF Reader | EM3720 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 114 months | Every 4 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 6 MB |
| Age rating | 4+ | 17+ |
| Developer | Ramalingam Sivaramakrishnan | ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD. |
In-app purchases
PDF Reader
No in-app purchases
EM3720
No in-app purchases
