Now on the App Store · iOS

Finally Understand Why You Feel the Way You Feel

Thyself connects your symptoms, medication and supplement timing, meals, and labs to help you see patterns your labs alone can't show — then gives you the evidence to bring to your next appointment.

Free to start
Built by a Hashimoto's patient
Private by design
AI-powered insights
Thyself iOS app dashboard showing the daily check-in, medication, and diet rings, a logging streak counter, and an AI insight card

You feel bad.
You don't know why.

Is it your medication timing? Calcium, caffeine, or soy near your dose? A supplement or a meal you didn't think mattered? Thyroid patients know the frustrating gap between how they feel and what their labs say. Thyself helps you connect the dots.

Whether you're managing an underactive thyroid, an overactive one, an autoimmune condition, or life after thyroid cancer — Thyself adapts to you.

Features

Everything you need to see your own patterns.

01

Daily Check-In

10 seconds a day. Track symptoms, energy, and brain fog. Edit today's check-in anytime to add a symptom you notice later without losing what you've already logged. Reminders help you stay consistent.

02

AI-Powered Insights

AI analyzes your logged symptoms, medication and supplement timing, and meals to surface personal patterns. Get an early first look after a few days, with your first pattern in as little as 7 days. Insights are framed for discussion with your doctor — not a diagnosis, just clarity.

03

Three Daily Rings

Tap your Check-In, Medication, and Diet rings to quickly log your day. Track medication and supplement timing, backfill past medication days, and see recent diet and medication history in one place. Build streaks and earn badges as you go.

04

Thyroid-Specific Diet Tracking

Log meals in your own words. Thyself automatically detects common triggers like gluten and dairy, plus calcium or caffeine near your medication. Thyroid-specific tracking, not a calorie counter.

05

Lab Value Tracking

Track TSH, Free T3, Free T4, antibodies, and more in one place. Thyself Pro adds full lab trend charts so you can review changes over time with your doctor.

06

Smarter Appointment Briefs

Generate a structured brief from your own logged history. Get one brief per month free, or unlimited briefs with Thyself Pro. Share your brief before your visit and walk in with evidence, not just complaints.

Insights are patterns worth discussing with your doctor — never a diagnosis or medical advice.

Built by a patient, for patients

"I built Thyself because I couldn't understand why I felt terrible some days and fine others. No doctor could tell me. No app existed that connected the dots. Every feature exists because I needed it myself — from the daily check-in to the AI insights to the appointment brief. Whether you're managing hypothyroidism, Hashimoto's, Graves', hyperthyroidism, or life after thyroid cancer, Thyself was built to understand your thyroid, not just one condition."
— Philip, thyroid patient and founder

How it works

Three steps to understanding your thyroid.

  1. 1

    Start with simpler setup tailored to your thyroid journey. Log a 10-second check-in, medication and supplement timing, and meals in your own words.

  2. 2

    See an early first look after a few days, with your first AI-powered pattern in as little as 7 days of logging.

  3. 3

    Generate an appointment brief from your logged history and share it before your visit. One brief per month is free; Pro unlocks unlimited briefs.

Pricing

Free to start

No credit card. Upgrade only when you want the full picture.

Free

$0to start
  • Daily check-in logging forever
  • Medication & supplement timing
  • Meal logging & lab tracking
  • One AI insight per month
  • One appointment brief per month
  • Streaks, rings & badges

Thyself Pro Monthly

$9.99/ month
  • Unlimited appointment briefs
  • Share your brief before your visit
  • Fresh AI insights every week
  • Full lab trend charts
  • Complete symptom history beyond 30 days
Best value

Thyself Pro Annual

$39.99/ year
  • Everything in Pro Monthly
  • Save 67% vs monthly

Lifetime

$79.99one time
  • Everything in Pro, forever
  • One-time purchase, never renews

14-day free trial for new subscribers. Prices shown in USD.

Download Free on the App Store

Questions or feedback?

We read every message.

Or email us directly at getthyself@gmail.com