WhosePoo - Nature Detective

Found something on your walk? WhosePoo identifies UK animal droppings from a single photo — instantly, on your device, with no internet required.

Point your camera, tap identify, and find out which UK mammal left its mark. Whether you're a curious dog walker, a nature enthusiast, or a wildlife surveyor, WhosePoo puts a field guide in your pocket.

IDENTIFY 19 SPECIES WhosePoo recognises droppings from red fox, European otter, badger, hedgehog, rabbit, roe deer, fallow deer, brown hare, pine marten, stoat, water vole, grey squirrel, red squirrel, brown rat, American mink — plus dog, cat, and livestock, so you always get a useful answer.

ON-DEVICE & PRIVATE All identification happens on your device using Apple's Core ML. Your photos are never uploaded or shared anywhere.

RECORD YOUR FINDS Every identification is saved as a sighting with the date, location, and a map pin. Browse your history or see all your finds on a full map.

LEARN AS YOU GO Each result includes a fun fact about the species and identification notes explaining exactly how we recognised it.

GEOGRAPHIC INTELLIGENCE WhosePoo uses your location to weight results based on which species are actually present in your area, using occurrence data from the Global Biodiversity Information Facility (GBIF).

DAILY POO JOKES Because finding poo should be fun.

FREE TO IDENTIFY Identification is always free. Unlock your complete sighting history and full map with a one-time purchase — no subscription, no account required.

Perfect for: • Nature walks and countryside exploration • Teaching children about UK wildlife • Wildlife surveys and citizen science • Dog walkers wondering what their dog just found