Here you can find all requirements for Money Manager Ex - WebApp: essentially what you need is a webserver with PHP support.
RECOMMENDED ADVICE
We suggest using WebApp on a shared hosting service to greatly simplify installation process:
most of free services meet the small requirements of WebApp.
Here you can find a list of these services.
If you know what you are doing, you can install a webserver on your pc:
after that you also need to properly configure your router to forward webserver port and reachit with a static IP or DNS, but for these you can find lots of guide so we will not discuss it here.
HOW TO INSTALL WEBAPP
Now simply open your browser to the folder URL and insert first settings.
GUID for data sync with desktop version is auto-generated, we suggest to don't change it
How to configure desktop Money Manager EX for data sync
How to upgrade
Wiki: Configure desktop MoneyManagerEX
Wiki: Free hosting
Wiki: Home
Wiki: Install webserver
Wiki: Requirements
Wiki: Upgrade