Attracting frogs to your pond can be fairly simple
Place native underwater plants around the edge to provide cover for adults and emerging tadpoles.
Plants should be planted around the edge of the pond, but not to much to block sunlight, or give to much shade. Include shallow, areas, and edges so frogs and toads can easily climb in and out, or add a hollow log, or sticks partly in and out of the water for climbing.
Make sure your pond is located away from chemical contaminations, from runoff from manure, composts, pastures, septic tanks and chemical treated lawns.
if you want to keep the frog and tadpoles happy, don’t add any fish!