Privacy Policy for Aquarium Chemistry Pro

Last Updated: June 18, 2026

Overview

Aquarium Chemistry Pro ("the App") is committed to protecting your privacy. This Privacy Policy explains how we handle information when you use our aquarium chemistry management and tracking application.

Data We Collect

Locally on your device only:

Aquarium tank profiles (name, volume, water type)
Water chemistry readings (pH, ammonia, nitrite, nitrate, and more)
Maintenance task schedules and completion history
Tank photo journal images (stored in app documents folder)
Cycling tracker readings and progress
Calculator inputs and results
App preferences and settings
Premium purchase status

No personal information is required — no account creation, no email, no sign-in.

Google AdMob (Free Tier Only)

Free users see banner, interstitial, and app-open ads served by Google AdMob. AdMob may collect:

Device advertising ID (for ad targeting)
General usage data for ad optimization

Upgrading to Pro removes all ads permanently. See Google's Privacy Policy for AdMob details.

Google Analytics (Firebase Analytics)

We use Firebase Analytics to collect anonymous, aggregated usage data:

Screen views and navigation patterns
Feature usage (which calculators and tools are used most)
Crash reports (to improve stability)
NO personal identifiers are collected

In-App Purchases

Pro purchases are processed by Google Play. We receive only confirmation that a purchase was completed. We do NOT receive:

Credit card or payment details
Billing address
Google account information

Photo Journal Data

Tank photos you take or import via the Photo Journal feature are stored locally in your device's app documents directory. These photos are never uploaded to any server. Deleting a photo from the app or uninstalling the app removes them from your device.

Data Sharing

We do NOT sell, trade, or share your personal data with third parties, except:

Google (AdMob, Analytics, Play) as described above
When required by law

Data Retention

All aquarium data and photos are stored locally on your device. Uninstalling the app deletes all local data. To request deletion of any analytics data, contact us below.

Children's Privacy

This app is not directed at children under 13. We do not knowingly collect personal information from children.

Contact Us

For privacy questions or data deletion requests, email: dev@corithmflowmatrix.com

Subject line: "Aquarium Chemistry Pro - Privacy Request"

Summary: All aquarium data and photos stay on your device. No personal info required. Ads only for free users. We respect your privacy.