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SimplySign – the mobile qualified electronic signature

SimplySign will turn your smartphone into a modern working tool thanks to which you will quickly and conveniently sign any e-documents as if you were signing them personally.

Electronic signature in SimplySign is: Signing contracts without a contract value limit. Possibility to sign files in any format. A single application to sign documents with a qualified certificate on your smartphone. A solution supported in all key public administration services. An excellent tool for business applications.

For more information about the service, visit

The service is not intended for M2M applications and mass signing of e-documents.

CERTUM recommends
Price From:

€77.99 gross €77.99 net

The product in the selected configuration is currently unavailable

  • 1 year
  • 2 years
  • 3 years

SimplySign –  mobile qualified electronic signature includes:

  • qualified certificate valid for: 1, 2 or 3 years
  • support for:
    - mobile devices with: Android or iOS
    - computers types: PC and Mac OS X
  • free software for signing and verification of e-documents/files
  • manufacturer's warranty:
    - for a certificate valid 1 year: support 12 months
    - for a certificate valid 2 years: support 24 months
    - for a certificate valid 3 years: support 36 months

What do you need in order to use SimplySign?

Use SimplySign only on mobile devices:

SimplySign - is a mobile application thanks to which you will sign any electronic documents. Within the frameworks of this application, there also is an OTP code generator, which is needed to authenticate the user to the remote signature service (can also be installed on another mobile device).

Basic requirements:

  1. Internet access
  2.   Smartphone or tablet with the following operating system:
    - Android - from v6.0 and above
    - iOS v10.0 (for SimplySign v3.5); from iOS v11.0 and above (for SimplySign v 4.0)

Use of SimplySign on mobile devices and on a traditional PC/ Laptop:

SimplySign  - download this application to your mobile device to use the OTP code generator,  which identifies the user in the process of putting a signature on a traditional computer: PC / Mac OS.  This application also contains a module, which allows signing documents on a mobile device.

Basic requirements:

  1. Internet access
  2. Smartphone or tablet with the following operating system:
    - Android - from v6.0 and above
    - iOS v10.0 (for SimplySign v3.5); from iOS v11.0 and above (for SimplySign v 4.0)

SimplySign Desktop - download this application so you can use the key services available on the market such as: Płatnik, eDeklaracje, ePUE, etc. The SimplySign Desktop application emulates the connection of a physical cryptographic card and card reader to your computer. With this solution you will be able to use SimplySign in applications requiring the use of a physical card. This application also features the proCertum SmartSign module, which allows signing documents on a traditional computer: PC / Mac OS.

Basic requirements:

  1. Internet access
  2. Microsoft .NET Framework 4
  3. Oracle Java software
  4. PC/laptop:
    • operating system:
      - Windows - 7,8,10 - OS X - Mountain Lion, Mavericks, Yosemite, El Capitan
  • CPU: Pentium 1 GHz (or compatible)
  • RAM: min. 4 GB
  • a minimum of 200 MB of free hard disk space before installing the application
  • screen resolution: 1024x768 or higher


Simple and intuitive activation process:

 1. Buy the product in the online store and receive your SimplySign service activation code. This code will be needed to run the service. It is available in your account at the Certum store and it will sent via e-mail to the address used to log in to your Certum account.

 2. Activate it - It only takes a few minutes! For activation of SimplySign, you were assigned an individual activation code. You may use it within 60 days. In order to begin activation of the service, the following actions will be performed:

  • preparing a mobile device with internet connection (smartphone / tablet)
  • download and configure the SimplySign application
  • filling in the application for a qualified certificate
  • verification of identity in the selected point (Certum Company Point/ Certum Partner Point/ notary public)
  • installation of the certificate on a mobile device and/or on PC

3. Start use - Your certificate is now active and ready for use. To start using the service, launch the SimplySign application installed on your mobile device or SimplySign Desktop downloaded to your PC and start signing e-documents.

Activate and automatic installation of a qualified certificate on a SimplySign (instructional video):

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