Hey i have created a app for my friend . And i want to use link shortner url in my app in screen with web viewer and place ads on bottom of screen. Is it legal to use. Means is there violate any policy of fb ads or google play
You can not show ads in apps with web viewer.
If you are loading your own site in web viewer then you can use AdSense ads in your website.
If use blogger api and display details through load html blocks?
Do not spam tags otherwise prokoders will remove it
You need to take rest and read admob policy first