Show HN: Compare the big 4 US carriers (android)
https://play.google.com/store/apps/details?id=com.mosaik.cellmaps
This is our first jump into mobile app development and I'd like some feedback from you guys. Enter "hackernews" under Settings->Enter Coupon Code and it will unlock the paid upgrades, but please try it without first to get a feel for what is different. U.S. only for now.
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