DPU vs ESS Online
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
DPU
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This is a check-in and attendance tracking application designed for public use. The app supports multiple companies and organizations. Any organization can register to use the system. Their HR department can approve employee accounts via email (Google/Apple Sign-In). This is not limited to a specific business. We provide a platform for multiple businesses to manage check-in activities through a shared system, and all users are able to register and request access publicly.
ESS Online
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Employee Self-Service (ESS) is a widely used human resources technology that enables HR departments to manage staff profiles. Employees can view their attendance performance on their mobile phones and perform various job-related tasks by submitting online request forms, such as tardiness requests, leave applications, day-off changes, and timesheet modifications. ESS helps employees do HR responsibilities faster and more accurately. By allowing employees to handle HR tasks themselves, reducing work time and paper work for HR, administrative staff, or managers. When employees enter their own information, it also enhances data accuracy.
Screenshots
Verdict
The clearest difference is update cadence: DPU at every 2 weeks against ESS Online's monthly. ESS Online's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DPU ships an update every 2 weeks, ESS Online monthly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | DPU | ESS Online |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks โ better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 38 MB | 61 MB |
| Age rating | 17+ | 4+ |
| Developer | Hoai Nam Bui | Vanhak Sreng |
In-app purchases
DPU
No in-app purchases
ESS Online
No in-app purchases









