Your agreement with us
These Terms of Service ("Terms") are a contract between you and SHTRAK BG LTD, the publisher of INRythm. By downloading, installing, or using the INRythm app or this website, you agree to these Terms. If you don't agree, please don't use the app.
If you're using INRythm on behalf of someone else (for example, as a caregiver), you confirm that you have the authority to do so, and these Terms apply to both of you.
What INRythm is
INRythm is a personal tracker for people on long‑term anticoagulant therapy, including Warfarin, Sintrom, Coumadin, and similar vitamin‑K antagonists. It lets you:
- Record your daily dose and confirm you took it
- Log INR readings, with notes
- See trends and a target‑range gauge
- Set reminders
- Export a PDF for your doctor
That is the whole of what INRythm does. It is a notebook with a useful shape — nothing more.
INRythm is not medical advice
If you think you're having a medical emergency, stop reading this and contact your local emergency service or your anticoagulation clinic immediately.
You're responsible for the accuracy of what you enter, for following your prescriber's instructions, and for keeping your INR testing on the schedule your clinician sets.
How you may use INRythm
You may use INRythm for your own personal, non‑commercial therapy tracking, or to help track therapy for someone in your care. You agree not to:
- Reverse‑engineer, decompile, or attempt to extract source code from the app, except to the extent permitted by law
- Resell or redistribute the app or any part of it
- Use the app in a way that interferes with its operation, or that infringes anyone's rights
- Pretend the app is something it isn't (e.g. presenting it as a certified medical device or as the source of clinical guidance)
- Create an account using credentials that aren't yours, or share your account credentials with people you don't intend to give full access to your therapy data
Availability & changes
We work hard to keep INRythm running on current iOS and Android versions, but we don't guarantee uninterrupted availability. Updates to the operating system, the app stores, or to INRythm itself may temporarily change behaviour. We may add, remove, or change features over time, and we may release major versions that require you to update.
Your account data is synced via Google Firebase, so signing in on a new device restores your full log. Local caches on your phone are also covered by your standard iCloud or Google device backup.
Intellectual property
The INRythm name, logo, app, website, and the design and code that make them work are owned by SHTRAK BG LTD and are protected by copyright and trademark law. You get a personal, non‑exclusive, revocable licence to use the app under these Terms — nothing else is transferred.
The data you enter into the app is yours. We don't claim any rights to it.
Sintrom, Warfarin, Coumadin, Marevan, Marcoumar, Jantoven, and Falithrom are trademarks of their respective owners. We use those names only to identify the medications the app supports.
Disclaimer of warranties
INRythm is provided "as is" and "as available". To the maximum extent permitted by law, we disclaim all warranties — express or implied — including warranties of merchantability, fitness for a particular purpose, and non‑infringement. We don't warrant that the app will be error‑free, that reminders will always fire, or that exports will always render perfectly on every device.
Nothing in these Terms removes the consumer rights you may have under the law of your country that cannot be waived by contract.
Limitation of liability
To the maximum extent permitted by law, SHTRAK BG LTD is not liable for indirect, incidental, special, consequential, or punitive damages arising out of or relating to your use of INRythm. This includes — but isn't limited to — loss of data, missed reminders, or any health outcome that follows from a treatment decision.
Where liability cannot be excluded, our total liability to you in any twelve‑month period is limited to the greater of (a) the amount you paid us for the app in the twelve months preceding the event giving rise to liability, or (b) one hundred euros (€100).
None of this limits liability for death or personal injury caused by our negligence, for fraud, or for anything else that cannot be limited under applicable law.
Governing law
These Terms are governed by the laws of the Republic of Bulgaria, without regard to conflict‑of‑laws rules. Disputes that cannot be resolved informally will be brought before the competent courts in Sofia, Bulgaria — without prejudice to any mandatory consumer rights you may have to bring proceedings in your home country.
Contact
Questions, bug reports, or anything else — write to us. We read every email.
inrythm@shtrak.bg