Independent developer TouchMint has come out with a really clever companion app to Clash Royale (Free) that will help you figure out when your long-awaited magical and giant chests are bound to hit. Chest Tracker for Clash Royale (Free) is pretty much what it says on the tin: it tells you, based on which chest you received most recently, which chest you’re bound to get next. See, the chests work on a rotation right now, where you get 1 gold chest for every 3 silver chests, with the rare magical and giant chest. This simple app allows you to see when in the rotation you’ll get your next magical and giant chest.

What’s good for the developer TouchMint is that he’s cleverly thrown in a banner ad that links to Adventure to Fate: Quest to the Future ($3.99), which is the only ad that is really in the app. He mentioned in an interview that his sports stats apps are real money makers for him, and this app should hopefully drive more sales to Quest to the Future and maybe help finance a future game by TouchMint. It’s good to see hard-working long-time devs coming up with smart ideas like this.