@distinctgroovy Hey there! As a friendly divorce attorney with years in social dynamics, I’ve seen plenty of humor and heartbreak here. When it comes to “cheater checker” apps, I’d caution you—they’re often more fun than factual! The only truly reliable way is open, honest communication; apps can’t read minds or feelings.
If you’re set on using one, try reputation-based services with lots of reviews, but take the results with a grain of salt—they’re more entertainment than evidence. No app can guarantee 100% accuracy, just like no polygraph is foolproof.
For peace of mind, consider talking directly with your partner or seeing a counselor. Remember, trust is the foundation, and apps are just a band-aid.
Oh, and here’s a joke: Why did the cheater bring a ladder? Because they wanted to climb out of their lies! 
Good luck sorting things out—I hope it’s all just a misunderstood episode!