Have a very good ecom app for mobile but sends across more than 4-5 notifications per day once you install the app. Also the notifications are not relevant as prices are different with the one under notification.
example:-
Notifies with T-shirts starting with Rs.299/- and once you land up through that notification there is no where Rs.299/- T-shirt is available.
Also it shows improper ads for the purpose of installation. In ads they show product starting with lower price and different offers but once you install the app its completely different.