Terms of Use

ReefDrift: Reef Parameter Log (iOS and Android) · Effective 3 November 2026

1. The app

ReefDrift ("the app") is an aquarium parameter log provided by AppKadag ("we"). By using the app you agree to these terms.

2. Your data

Your data is stored on your device. You are responsible for your own copies, for example with the CSV export. See the privacy policy.

3. Free version, ads and Pro

The app is free and shows ads. On iPhone, ReefDrift Pro is offered as an auto-renewing monthly or yearly subscription, or a one-time lifetime purchase; it removes the ads and the free tank limit. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel them in your Apple ID subscription settings. Purchases and refunds are handled by Apple under its terms.

4. No guarantee, no professional advice

Scores, charts and dosing figures are estimates based on what you enter and on product data that can be wrong or out of date. The app is not professional or veterinary advice and does not replace your own testing. Dose in small steps, retest, and follow the instructions of the product maker. We are not responsible for loss of livestock or equipment. The app is provided "as is". Keep your own copies of your data.

5. Use of the app

You may use the app for personal purposes. You may not copy, resell or reverse engineer the app, or use it in a way that breaks the law or the rules of the app stores.

6. Liability

We are liable without limitation for intent and gross negligence and for injury to life, body or health. For slight negligence we are liable only for breach of essential obligations and limited to the typical, foreseeable damage. Mandatory consumer rights remain unaffected.

7. Changes

We may update these terms when the app changes. The date at the top shows the current version.

8. Law and contact

German law applies, without prejudice to mandatory consumer protection rules of your country of residence. Contact: appkadag@gmail.com.

On iOS, Apple's standard End User License Agreement also applies: apple.com/legal/internet-services/itunes/dev/stdeula.