The matchup checker app lets you select two of the Pokémon you own, and lets you see if those two Pokémon will produce an egg together or not. If the Pokémon reject each other an egg will not be produced.
A Prinplup and a Golduck almost match together because they are like birds. And they have beaks too!
| List of Pokétch Apps |
|---|
| Digital Watch - Calculator - Memo Pad - Pedometer - Pokémon List |
| Friendship Checker - Dowsing Machine - Berry Searcher - Day-Care Checker - Pokémon History |
| Counter - Analog Watch - Marking Map - Link Searcher - Coin Toss |
| Move Tester - Calendar - Dot Artist - Roulette - Trainer Counter |
| Kitchen Timer - Color Changer - Matchup Checker - Stopwatch - Alarm Clock |