Koi Cal Pond Care + Health AI

Aaron Heine · Utilities

5.0 4 ratings Free

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Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Oct 9, 2026
New version 3.02 → 3.04

New: print a fish roster! Make a PDF of all your koi with their paintings and details from Settings. Important fix: iCloud sync no longer removes fish from your device. If fish disappeared after the last update, this version restores them from the paintings and photos still saved on your device. Also fixes iCloud Sync Now and cleans up text throughout the app.

Sep 25, 2026
New version 3 → 3.02

In-app purchases · US

What this app sells inside itself, grouped by kind and priced for this storefront.

Subscriptions
Weekly Unlock $2.99/ week · 3-day free trial
Monthly Koi Cal Subscription $7.99/ month · 3-day free trial
Yearly Koi Subscription $44.99/ year · 3-day free trial

Screenshots

About

Keep track of your school in a beautiful way. Enter your pond info to keep your water clean and fish healthy. Koi Cal helps koi owners keep track of every fish they own, diagnose pond problems, dial in feeding, and keep their water crystal clear. Build a profile for each koi, log a feeding, run a water test — and get a personalized Health Plan tuned to your fish, your weather, and your pond. YOUR SCHOOL, ORGANIZED • A profile for every koi: name, variety, birthdate, length • Photo timeline per fish — watch them grow month by month • AI-stylized portraits of your favorites • iCloud sync keeps your school backed up across devices • Sort by name, age, or most recently added AI HEALTH PLAN • Personalized feeding recommendations — how much, how often, what food • Pond Report card — at-a-glance health overview • Per-concern advice — fixes targeted at your exact problem, not generic forum tips • Auto-adjusts to your local weather and water temperature LOG WHAT MATTERS • Daily feedings (up to 3/day) with food type • Water tests: pH, KH, GH, nitrate, nitrite, salinity • Pond setup: size, location, sunlight hours, circulation time • Fish details: species, size, age group, count WE CATCH PROBLEMS LIKE • Cloudy, green, or dark water • Inadequate circulation or filtration • Overstocking and overfeeding • Flukes and other parasites • Low energy, hiding, or loss of appetite • Out-of-range pH, nitrite, nitrate, KH, and GH • Stunted growth and obesity TRACK YOUR GOALS Whether you want better color, faster growth, breeding success, or calmer behavior — Koi Cal tunes its recommendations to your goal. WHY KOI CAL? Most pond apps treat your fish as a number. Koi Cal treats them as individuals. Every koi gets a name, a photo timeline, and a place in your school — and the AI weighs your pond, your fish, and your weather together to give you one clear answer. Save your fish, save your weekend. Built for backyard koi keepers, water garden hobbyists, and fish keepers of every level. End User License Agreement https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What's new · 3.04

New: print a fish roster! Make a PDF of all your koi with their paintings and details from Settings. Important fix: iCloud sync no longer removes fish from your device. If fish disappeared after the last update, this version restores them from the paintings and photos still saved on your device. Also fixes iCloud Sync Now and cleans up text throughout the app.

Details

DeveloperAaron Heine
ReleasedFeb 2025
UpdatedMay 2026
Version3.04
Size25.7 MB
RequiresiOS 17.5 or later
Age rating4+
LanguagesEnglish
PriceFree
Categories UtilitiesHealth & Fitness
Bundle IDcom.designoverhaul.koical