eSGN vs DMS4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eSGN
Digitally sign and share PDF documents securely and legally from anywhere. Create a Digidentity account for a legally binding signature, then import and sign your PDFs within the app. Invite others to sign documents with a simple workflow.
- Digital PDF signing
- Legally binding signatures
- Secure document sharing
- Invite others to sign
- Digidentity account integration
- PIN code security
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The eSGN app enables you to digitally sign and share your PDF documents, wherever you are and whenever you like! Sign your documents with a secure and legally binding signature and invite other people to sign your document using a simple to use workflow. How it works: Create a Digidentity account (https://auth.digidentity.eu/accounts/new). This involves creating a personalised smart card with a 5-digit pin code (this adds an extra layer of security to your Digidentity account), making your signatures legally binding. For this you will need to download our Digidentity App. Download the eSGN app. Log into the eSGN app using your Digidentity login credentials and 5-digit pin code. Import the PDF document you wish to sign. Use the app to sign the document and confirm it with your 5-digit pin code. Share it!
DMS4
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DMS4 allows EWT customers to monitor the performance of their turbine portfolio with secure user access control. Users can monitor all their wind parks via the HOME section. Selecting a wind park takes the user to the PARK section which shows the operational status, power and wind speed of all turbines in the park, and provides park level reports of daily energy production and availability, downloadable in MS Excel format. Selecting a turbine takes the user to the TURBINE section where live operational data are displayed via a state-of-the-art graphical user interface or dashboard, as well as turbine-level reporting, downloadable in MS Excel format. Turbine alarms and warnings are visible as notifications in all sections. Once the app is installed on a device, the user must be registered on EWT's server before a login is possible. Contact EWT for registration.
Screenshots
Verdict
The clearest difference is update cadence: eSGN at every 2 months against DMS4's every 6 months. DMS4's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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.
eSGN ships an update every 2 months, DMS4 every 6 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.
| Parameter | eSGN | DMS4 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 6 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Digidentity BV | EWT IP B.V. |
In-app purchases
eSGN
No in-app purchases
DMS4
No in-app purchases









