Terms of service

Last updated 2026-11-06

These terms govern your use of the Headache Log & Migraine Diary mobile app and website (the "Service"), provided by TLM Software Design, Inc., a Michigan corporation at 27280 Haggerty Road, Ste C-6, Farmington Hills, MI 48331, USA ("we", "us"). By installing or using the Service you agree to them.

Who can use the Service

You must be at least 13 years old (16 in the EU and UK). The app is for personal health tracking only.

What the Service does

The app lets you record headache and migraine attacks, medications, symptoms and triggers, set a daily reminder, view charts and monthly summaries, and, with the unlock, export your entries as a PDF report or a CSV backup. Your diary is stored locally on your device. No account or internet connection is required.

Not a medical device

The app is a personal diary. It is not a medical device or a clinical decision-support system. It does not diagnose, treat or give medical advice, and it does not recommend any medication or dose. Statistics are descriptive summaries of what you entered. Always consult a qualified healthcare professional about your health, and do not delay seeking care because of anything you read in the app. If you are in an emergency, call your local emergency number.

Acceptable use

You agree not to:

• use the Service as a substitute for professional medical advice or treatment;
• reverse-engineer, decompile or try to extract the source code of the app;
• use the Service to build a competing product or to train a machine-learning model;
• circumvent the purchase or any technical protection of the Service.

The $4.99 unlock

The PDF report, CSV export and import, and your history older than the current calendar month and the two before it are unlocked by a one-time in-app purchase of $4.99 (the price shown in your store may vary by region). It is not a subscription and does not renew. Without the unlock, older entries are hidden, not deleted. For 14 days after you first open the app, these features are available without the purchase; after that they lock until you buy the unlock.

The purchase is processed by Apple or Google. Where the store offers Family Sharing, the unlock applies under that store's rules. Features added to the unlock in later versions come at no extra cost.

Refunds

Refund requests are handled by Apple or Google under their policies.

• Apple: reportaproblem.apple.com
• Google Play: support.google.com/googleplay/answer/2479637

Your data

How we handle data is described in the Privacy policy. In short: your diary is stored only on your device.

Intellectual property

The Service and the app are owned by TLM Software Design, Inc. and its licensors. We grant you a limited, non-exclusive, non-transferable licence to install and use the app for personal, non-commercial health tracking. You keep ownership of what you enter.

Availability

Because the app works offline, its core features do not depend on our servers. Analytics and crash reporting need a network connection but no feature depends on them.

Disclaimers

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND. WE DO NOT WARRANT THAT IT WILL BE UNINTERRUPTED OR ERROR-FREE, OR THAT YOUR DATA WILL BE PRESERVED IN EVERY CIRCUMSTANCE (FOR EXAMPLE IF A DEVICE IS LOST OR RESET). BACK UP YOUR DIARY WITH YOUR DEVICE'S SYSTEM BACKUP (ICLOUD OR ANDROID BACKUP) OR, WITH THE UNLOCK, THE CSV EXPORT.

Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, TLM SOFTWARE DESIGN, INC. IS NOT LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, AND ITS TOTAL LIABILITY IS LIMITED TO THE GREATER OF WHAT YOU PAID FOR THE SERVICE IN THE PRECEDING 12 MONTHS AND USD 10. Some jurisdictions do not allow these limits, so they may not apply to you.

Termination

You can stop at any time by deleting the app. There is no account to close. Deleting the app removes the diary from your device.

Changes to these terms

We post material changes here and update the date above. Continuing to use the Service means you accept the new terms.

Governing law

These terms are governed by the laws of the State of Michigan, USA, without regard to conflict-of-law rules. Disputes go to the state or federal courts in Oakland County, Michigan. Nothing here waives a consumer-protection right that the law of your country of residence gives you and that cannot be waived by contract.

Contact

Questions about these terms: info@swtlm.com.