Fortnightly
Habit & Task Tracker

Privacy Policy

Last updated: April 2026

In Plain English
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All data stays on your deviceYour habits, tasks and progress are stored locally and never uploaded to any server.

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Your API key is yoursStored only on your device. Never seen or transmitted to us.

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No ads, no trackingWe do not collect analytics, show ads, or track your behaviour.

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AI coaching is optionalOnly your habit data is sent to Anthropic when you request AI coaching โ€” nothing else.

1. Introduction

Fortnightly ("the App", "we", "us") is a personal habit and task tracking application. This Privacy Policy explains what information the App collects, how it is used, and your rights regarding your data.

By using the App, you agree to the practices described in this policy. If you do not agree, please discontinue use of the App.

2. Information We Collect

Data stored locally on your device

The App stores the following data exclusively on your device using Android's local storage (AsyncStorage). This data never leaves your device unless you explicitly use the AI Coaching feature:

Data we do NOT collect

๐Ÿ’ก The App has no backend server and no database. There is nowhere for your personal data to be stored other than on your own device.

3. AI Coaching Feature

The App includes an optional AI Coaching feature powered by Claude AI (developed by Anthropic, PBC). This feature is entirely opt-in and requires you to provide your own Anthropic API key.

What is sent to Anthropic

When you close a fortnightly cycle and AI coaching is triggered, the following data is transmitted directly from your device to Anthropic's servers:

What is NOT sent to Anthropic

Anthropic's privacy practices

Data sent to Anthropic is subject to Anthropic's own Privacy Policy, available at anthropic.com/privacy. We encourage you to review it. The App uses the Anthropic Messages API directly from your device โ€” we have no access to this data.

Your API key

Your Anthropic API key is stored only on your device using local storage. It is transmitted only to Anthropic's servers (api.anthropic.com) as an authentication header. It is never sent to us or any other party.

4. Data Sharing and Disclosure

We do not sell, trade, rent, or otherwise share your personal data with any third parties, except as described below:

There are no other circumstances under which your data is shared.

5. Data Security

Your data is stored on your device using Android's standard local storage mechanisms. The App uses HTTPS for all network communications and enforces a strict network security configuration that only permits connections to Anthropic's API servers.

While we take reasonable precautions, no method of electronic storage is 100% secure. You are responsible for maintaining the security of your device.

6. Data Retention and Deletion

All data is stored locally on your device for as long as the App is installed. You can delete your data at any time by:

We do not retain any copies of your data as we have no server-side storage.

7. Children's Privacy

The App is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided information through the App, please contact us so we can take appropriate action.

8. Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be reflected on this page with an updated "Last updated" date. We encourage you to review this page periodically.

Continued use of the App after changes constitutes acceptance of the updated policy.

9. Your Rights

Since all your data is stored locally on your device, you have full control over it at all times. You may:

10. Contact Us

If you have any questions about this Privacy Policy or the App's data practices, please contact us:

genie10001@gmail.com