# KoiLog: Koi Pond Tracker

> Lifestyle

Canonical page: [https://chrome-stats.com/d/id6788127388](https://chrome-stats.com/d/id6788127388)

## Overview

- **ID:** `id6788127388`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** TOBY M BERGER
- **Category:** Lifestyle
- **Version:** 1.1
- **Last updated:** 2026-07-24
- **First published:** 2026-07-18
- **Size:** 1.62 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/koilog-koi-pond-tracker/id6788127388)
- **Website:** [https://koi-log.com](https://koi-log.com/)
- **Privacy policy:** [https://tobyberg43.github.io/koilog-site/privacy.html](https://tobyberg43.github.io/koilog-site/privacy.html)

## Description

KoiLog is the private, offline-first logbook for backyard koi keepers. No account. No cloud. Yours forever.

Everything you track in a notebook, done properly:

WATER TESTING
Log temperature, pH, ammonia, nitrite, nitrate, KH, GH, salt, dissolved oxygen and TDS in seconds. Charts with koi-safe range bands show trends at a glance.

FEEDING GUIDE
KoiLog reads your latest water temperature and tells you exactly how to feed — from winter dormancy (do not feed) to summer growth feeding. Koi are cold-water fish, and KoiLog covers the whole year.

YOUR KOI COLLECTION
A profile for every fish: variety, photos, growth measurements with length/weight charts, source, value and status. Watch your tosai grow into jumbo.

MAINTENANCE & TREATMENTS
Recurring tasks with reminders — water changes, filter cleans, UV bulbs. Log salt or medication treatments with an active day counter. The built-in salt calculator doses therapeutic salt correctly for your pond volume (salt is an optional treatment — koi are freshwater fish).

PRIVATE BY DESIGN
Everything stays on your device. No sign-up, no subscription required, no tracking. Export your data to CSV anytime.

FREE: 1 pond, 5 koi, 3 tasks, 30 days of charts, salt calculator and feeding guide.
KOILOG PRO: unlimited everything, full history, collection stats and CSV export — one-time lifetime purchase or monthly.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://koi-log.com/privacy.html

## Rankings

- #1,614,111 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6788127388)