Ya, quite boring when it is 11:53 PM and shopback do this to me.
First click, it is top up page, then killed Lazada and relaunch again, take me another 15 second(lousy lazada app)
And I means, shopback can be better by allowing user to create a Lazada App jumper shortcut on the Launcher, so without opening the shopback app, you just click the shortcut created by shopback, and bang, problem solved, and customer will always launch Lazada app it using this fast method.
Not opening shopback first, wait 5 second, then need another user action to click on lazada icon, then jump to lazada app.
But one click shortcut, jump to shopback, then auto jump to lazada app.
Then you can just hidden the real lazada app inside the folder or drawer, and normally just using that shortcut when you want to surfing on lazada.
Maybe you will say, how about the issues that shopback ads on the homepage?
Well, easy, just pop up on the notification with picture and words after lunching Lazada app, if the customer want to know more, they will click on it, simple enough.
You are welcome, but it is mostly useless as too complex step, and no one want to use it.

Ha! Doubt that Shopback will do what you suggest. Most people will just ignore the notification. They likely to get better chance of people seeing their ads if they have to go through Shopee first.