For testosterone therapy

Never miss a shot.

Dose reminders on your schedule, the next injection site picked for you, and your bloodwork and symptoms in one private log, ready for your next doctor visit.

Free, with optional Pro · No account · Your log stays on your phone

The Today screen: the next dose, tonight at 8 PM, with the suggested site, the right deltoid
Everything in one place

Built for how TRT actually works.

Twice a week or every 3.5 days, IM or SubQ, cypionate or enanthate, with or without hCG: set your protocol once and the app keeps track.

The calendar: every dose taken and scheduled
Reminders & calendar

Every dose, on time.

  • Any schedule: weekly, twice a week, every 3.5 days, every other day or daily.
  • Reminders at your dose time, with Log it and Skip right on the notification, plus a gentle follow-up if you haven't logged it.
  • A calendar of every shot taken, skipped, missed and coming up, with your labs and check-ins.
  • A widget with your next dose and site on your home screen (and the iPhone Lock Screen).
  • mL and syringe units: your prescribed dose, worked out for your vial’s concentration.
  • Supplies: what's left in your vial, spare vials, syringes and needles, with a reminder before you run low.
Injection-site rotation on a body map
Site rotation

The next spot, picked for you.

  • A body map of glute, ventrogluteal, deltoid, thigh and abdomen sites, IM and SubQ.
  • Automatic rotation: the most rested site is always suggested, to keep soreness and scar tissue down.
  • At a glance: which sites are ready, healing or used recently.
  • Soreness noted: mark a sore spot, a bruise or a lump, and that site gets extra rest.
Lab results: total testosterone, estradiol, hematocrit and more
Bloodwork

Your labs, over time.

  • Total and free T, estradiol, hematocrit, hemoglobin, PSA, SHBG, LH, FSH, lipids and more.
  • US or SI units: ng/dL or nmol/L, pg/mL or pmol/L, converted for you.
  • Range indicators with your own lab's ranges, and a reminder when the next panel is due.
  • Draw timing: see whether each result was drawn near peak, midway or at trough.
Daily check-ins and between-shot insights
Symptoms

How you feel, day by day.

  • A ten-second check-in: energy, mood, libido, sleep and focus.
  • Side effects like acne, water retention or night sweats, plus weight and blood pressure.
  • Between-shot insights (Pro): which days after your shot feel best.
★ TRT Tracker Pro

See your peaks and troughs.

Pro estimates your testosterone curve from every logged dose and the ester's half-life, calibrated to your own bloodwork, and shows how the same weekly amount behaves on other schedules.

Estimated levelsCalibrated to your labs
Trend chartsEvery lab marker and rating
Every medicationTestosterone, hCG and more
Doctor reportA PDF, plus a spreadsheet
Between-shot insightsYour best days after a shot
No adsA clean, quiet log

Monthly, yearly (with a free trial for new subscribers) or a one-time lifetime unlock. Cancel any time in your store account.

Estimated levels calibrated to a lab result
Private by design

Your log never leaves your phone.

No account

No sign-up, no email, no cloud. Open the app and start logging.

On-device only

Doses, labs and symptoms are stored on your phone and never sent to us or to advertisers. Add a Face ID or fingerprint lock if you like.

Yours to keep

Back up to a file, restore it on a new phone, and make a PDF report for your doctor whenever you want.

FAQ

Questions

Is it free?

Yes. Logging, reminders, the calendar, site rotation, labs, daily check-ins, supplies and the widget are free, supported by ads. TRT Tracker Pro adds estimated levels, trend charts, between-shot insights, more than one medication and doctor reports, and removes ads. It's monthly, yearly (with a free trial for new subscribers) or a one-time lifetime purchase.

Does the app give medical advice?

No. It's a personal log. Estimated levels are illustrations from published ester half-lives, not lab results, and lab ranges vary between labs. Always follow your prescriber's instructions.

Which medications and schedules does it support?

Testosterone cypionate, enanthate, propionate, undecanoate and four-ester blends, plus hCG, gonadorelin, anastrozole and any custom medication, injected IM or SubQ or taken orally. Schedules can be specific weekdays or every N days, including every 3.5 days. It works for testosterone HRT too.

Where is my data, and can I move phones?

Everything stays on your phone; we never receive it. Settings › Back up to a file saves your whole log, and Restore from a backup brings it back on a new phone, iPhone or Android.

Does it work offline?

Yes. Logging, reminders and charts all work without a connection. Only ads and purchases need one.

Can I show my data to my doctor?

Yes: Pro makes a PDF report of your protocol, injections, labs, vitals and symptoms for any period, and exports your whole log as a spreadsheet (CSV) to email or print.

Is there a widget?

Yes, free: your next dose, its time and the next site on your home screen, on iPhone and Android, and on the iPhone Lock Screen. With discreet notifications on, it leaves out the medication's name.

Stay on top of your protocol.

Set up in a minute. Your first reminder is on its way.