ThyroidHealthOS

A complete thyroid disease data tracker in one private offline app. Seven tabs. One file. Yours forever for one price. A lab values tracker that graphs TSH, Free T3, Free T4, Reverse T3, TPO antibodies, Tg antibodies, TSI, Total T3, Total T4, vitamin D, ferritin, and B12 over months and years - showing both standard lab reference ranges and functional medicine optimal ranges side by side, so you can see whether you are merely "in range" or actually optimal. A medication tracker for Levothyroxine, Synthroid, Tirosint, Armour Thyroid, NP Thyroid, Cytomel, methimazole, and PTU - with dose, brand, timing rules (empty stomach, 60 minutes before food / coffee / calcium / iron), and brand-swap notes that capture how a generic-to-Synthroid or Synthroid-to-Tirosint switch affected your TSH four to eight weeks later. A daily symptom log scoring fatigue, brain fog, hair loss, cold intolerance, palpitations, anxiety, weight change, mood, sleep, and constipation on a simple 0-3 scale, with a 7-day grid that turns subjective feelings into an objective trend you can show your endocrinologist. A vitals tracker for basal body temperature (under-medicated hypo runs cold), resting heart rate (over-medicated runs fast), weight, and blood pressure. A doctor visit log that records the date, the doctor, the labs ordered, the plan changes ("increased Synthroid 75 to 88 mcg"), and a running question list for next time so you do not forget what you wanted to ask. Settings for profile, diagnosis, JSON export and import, and full reset. Every input saves locally to your device. Nothing goes to a server. No account, no subscription, no app store, no annual fee, no health data sold to advertisers. Works on laptop in any browser, and adds to your iPhone or Android home screen as a standalone app for offline use.

WHAT'S INCLUDED

• Lab values over time - TSH, Free T3, Free T4, Reverse T3 with trend charts
• TPO and Tg antibodies plus TSI for Graves
• Vitamin D, ferritin, B12 (T4 to T3 conversion cofactors)
• Standard lab range AND functional optimal range side by side
• Medication tracker - Levo, Synthroid, Tirosint, Armour, NP Thyroid, Cytomel
• Dose, timing, brand-swap notes, adherence streaks
• Methimazole and PTU support for Graves / hyper
• Daily 10-symptom log - fatigue, brain fog, hair, cold, palps, anxiety, weight
• Basal body temp, resting HR, weight, BP vitals
• Doctor visit log - dates, plan changes, lab orders, notes
• Running question list for next endocrinologist or functional med visit
• JSON export / import / full reset in Settings
• 100% private - data never leaves your device
• Single HTML file - laptop + iPhone + Android home screen, fully offline

100% PRIVATE AND OFFLINE

Your lab values, medications, and symptom logs are sensitive. This app never sends a single byte to a server. No account, no cloud, no analytics, no tracking. All your TSH, Free T3, Free T4, Reverse T3, antibody, dose, timing, symptom, vitals, and visit data lives only on your device. Works completely offline.

WORKS ON ALL DEVICES

Open on laptop, add to home screen on iPhone (Safari) or Android (Chrome) as an app. One file, all devices.

INSTANT DOWNLOAD

Download once, use forever. No subscription, no renewal, no expiry.

PERFECT FOR

• Anyone diagnosed with Hashimoto thyroiditis tracking antibodies and labs
• Hypothyroid patients on Levothyroxine or Synthroid managing dose changes
• Anyone who switched between generic Levo, Synthroid, and Tirosint
• Graves and hyperthyroid patients on methimazole or PTU
• Post-thyroidectomy patients managing T4 and T3 replacement
• Anyone whose TSH is "normal" while symptoms persist - bring real data to your doctor
• Patients seeing both an endocrinologist and a functional medicine MD
• Anyone refusing to put thyroid data in a cloud health app

Questions? Message us on Etsy - we reply within 24 hours.

Disclaimer: This is a personal tracking and journaling tool. It is not medical advice and does not replace your endocrinologist, functional medicine doctor, primary care provider, or pharmacist. Always consult your healthcare provider for diagnosis and treatment. Reference and "optimal" ranges shown are general educational targets, not personalized recommendations.