A free program for Android, by TESCO SW a.s..
My Home application allows you to easily access your rental information and it combines your contact details and important lease contract information. The application can provide information about the current status of the rental property, like if it is available or not, the current rent, the type of the contract (e.g. standard, social, etc.), if there are any changes in the rent or other important information.
If you are the tenant, you can change your contact details, register or de-register another person to/from the apartment without having to visit the actual customer office.
You can also report a malfunction, a defect or other technical requirement from the comfort of your home.