After some real long searching around the Internet, I've found a little application that can be used as a light meter on your mobile phone.
Here we go.
NOTE: This is for Java
phones, NOT for Android or iPhone.
Application is called "Eksponometr" and can be found here
Requirements: Mobile phone with camera, (mobile) internet.
0) Download and install app on your phone.
1) Take a photo with your phone camera of the area you want to meter.
2) Run Eksponometr.
3) Press 7.
4) Pick the newest file, it's the one you've just shot.
5) Press #.
6) This is the EXIF data. I think you know what to do with it.
Use 0 for help.
From now on, press * instead of steps 3 and 4 every time you want to read out the latest photo's data. It automatically picks the latest photo.
Thanks for reading.