Howler by Coco Thrift

Step into a world of steamy fun with the hottest new dating app, Hellmatch, to pair yourself with a local supernatural hottie. Local single shifters, vampires, and fae are in your area and waiting to mingle.
Christina Mellbrooks is skeptical of a lot of things as a crime lab analyst. After another disastrous date, her best friend convinces her to download Hellmatch. Christina has never been one to play with danger, especially gorgeous supernatural men until her first swipe ends up being the hunkiest man she’s ever seen.
Except Jonathan isn’t a man at all, he’s a werewolf. A shifter who knows he wants.
And he wants Christina.