Software602 Signer vs eProtokol
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Software602 Signer
This premium tool facilitates electronic signatures, time stamps, and data mailbox management. It supports authorization of various document types and mobile photos with GPS data, utilizing qualified digital signatures and remote certificate storage.
- Electronic signature authorization
- Time stamping
- Data mailbox management
- Support for PDF, PDF/A, Office 365 documents
- XML form data authorization
- Mobile photo authorization with GPS
- Qualified digital signature creation
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Signer is a premium tool for handling electronic signatures, time stamps and data mailboxes. Uses selected qualified SecuSign services (https://www.602.cz/secusign/). Authorization of documents (PDF, PDF/A), XML form data (FormApps) and mobile photographs with GPS coordinates with an electronic signature and time stamp. Support for qualified digital signature creation according to eIDAS with certificates stored in remote signing service (HSM), validation of qualified certificates issued within the EU. Viewing received and sent data messages in your personal as well as company data mailbox and sending new data messages with direct creation of the document to be sent.
eProtokol
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eProtokol will help you effectively manage the work of your employees and monitor the costs of individual projects in detail. Our goal is to create a clear system that digitizes key internal processes in small and medium-sized companies in the construction and craft professions. Thanks to this, you will save time and get a perfect overview of what is happening in your company - everything is at your fingertips.
Screenshots
Verdict
The clearest difference is in-app purchases: eProtokol at none against Software602 Signer's 2. eProtokol also leads on update cadence (every 2 days vs every 3 months). On price, ads, device support 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. Software602 Signer sells 2 one-off in-app purchases. eProtokol asks for nothing beyond the download.
Software602 Signer ships an update every 3 months, eProtokol every 2 days. The most recent releases landed on July 21, 2026 and September 11, 2026 respectively.
| Parameter | Software602 Signer | eProtokol |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 60 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Software602 a.s. | Vaclav Klicka |
In-app purchases
Software602 Signer
- Next year of Signer usage$49.99
- Signer Licence + 1 year$129.99
eProtokol
No in-app purchases
