Good app but a battery hog

This app is great, but its not the best and has some limitations.

For one, it runs location services in the background and drains your battery like crazy!
It needs to have a while app is in use option in location services like most apps. Why this was omitted when it doesnt use any features like Apple Wallet (Passbook) is beyond me.

Secondly, it needs Apple Wallet integration. I want my passes to pop up when I come near my local store. The app doesnt do this, so it should have the option to export passes to Apple Wallet as a barcode (Apple now allows plain barcodes in Apple Wallet) with the option to add a favorite store or multiple store locations to the pass so it pops up accordingly.

Thirdly, there are never any good coupons or any coupons at all at the stores I shop at within the app. Maybe integrate it with a coupon service or add coupons that I could easily find at many coupon sites I frequent, to the app.

applechamp about CardStar