Swapp link is not working properly. It said that the version is too old, but I can’t find any working update, not even in the xda forum.
The developer canceled the project then app was removed from Play Store too. So sad, was good one.
What now? It was a good app, was very close to fully understand it! Is there any app with the same features?
For now , i didnt find any similar to Swapp… But if some developer come who understand from Java can do 1 for us 
I would pay some bucks for an app like that… 