KoiApp — Koi & Pond Tracker Live

KoiApp is the complete app for koi keepers and breeders — track every fish, care for your pond, and control it all from your phone. Part of the KoiSoft system. TRACK YOUR FISH • Register every koi with photos, variety, length, weight and history • Follow growth over time with clear charts, and compare fish in a pond • Measure a fish straight from a photo — mark a known reference and get exact length • Scan a fish with AI to identify species and variety and estimate size • Turn a phone photo into a polished studio ID card with its own QR code • Build a family tree with parents and offspring KOIDOCTOR — YOUR AI ADVISOR • Ask about health, symptoms, water chemistry, feeding and seasonal care • Attach a photo and get an answer about your own fish • Log a water test and have KoiDoctor read it: it weighs pH against KH, nitrite against temperature and stocking, and tells you what the situation actually is • Find fish vets near you • Guidance, not a replacement for a vet — in an acute case, call one WATER TESTS AND POND CARE • Log temperature, pH, ammonia, nitrite, nitrate, KH and GH in under a minute • Every reading is colour-coded as you type, and you can photograph the test strip as documentation • See each value charted over time so you can tell where the pond is heading • Feeding plans that follow water temperature, fish size and food type • Pond overview with live status CONTROL YOUR POND WITH KOIBOX (optional hardware) • Monitor and automate: pump, UV, heating, lights and feeding • Water level with automatic top-up, and live water temperature • Energy control that follows the electricity price • Push alerts on critical events, wherever you are • KoiPlugg smart plug for equipment you would rather not hard-wire BREEDING • KoiMix weighs a pairing: likely offspring varieties, which of your fish to breed from, and why • Generate an image of the expected offspring KOI MARKETPLACE • Browse koi for sale and reach the seller directly • List your own koi and share your personal storefront • Transfer a koi to its new owner with the full history — photos, measurements, logs and water tests Available in English, Norwegian, German, Dutch and Japanese. Built at the pond's edge by a koi enthusiast, for koi enthusiasts. No account is needed to explore the shop, browse the marketplace or use the feeding calculator. Create a free account to manage your own koi, ponds and devices. Premium adds unlimited ponds and fish, monthly studio image credits and custom control panels.