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Protocol. Progress. Privacy.

Trough: TRT Tracker

Trough is a TRT tracker app for iPhone that logs your testosterone injections, check-ins and bloodwork and shows your estimated levels between doses. A 30-second daily check-in turns how you feel into a Protocol Score, and streaks, levels and badges reward consistent logging. There's no account, and your log stays on your iPhone.

Download on the App Store

Your whole protocol at a glance

Trough dashboard with protocol rank, check-in streak, next injection and Protocol Score
Trough check-in saved, with XP earned, check-in streak and today's quests
Trough estimated testosterone level curve between injections, with the next injection due
Trough injection calendar with on-schedule streak, dose stamps and the next site in rotation
Trough achievements with protocol rank, streaks and badges
Trough bloodwork log with marker results, reference ranges and trends across draws
Trough privacy: no account, data stays on your iPhone, no ads

How it works

  1. Set up your protocol: compound, dose and injection frequency, plus any supplements you take.
  2. Each day, rate your energy, mood, libido, sleep quality and mental clarity in about 30 seconds. Trough turns it into a Protocol Score and keeps your streak going.
  3. Log each injection with its site. Trough shows your estimated levels between doses, suggests the next site in your rotation and reminds you on injection day. Add your lab results to follow each marker across draws.

Features

  • Daily check-in: energy, mood, libido, sleep quality and mental clarity on a 1–5 scale, plus morning wood and workout, combined into a Protocol Score
  • Injection log with dose, compound and site, a calendar of dose stamps and an on-schedule streak
  • Injection site rotation across 10 sites, with a suggested next site
  • Injection-day and daily check-in reminders
  • Estimated level curve between doses, calculated from your own injection log, including multi-ester stacks
  • Testosterone cypionate, enanthate, propionate and undecanoate, plus hCG, anastrozole, GLP-1s such as semaglutide and tirzepatide, and peptides such as BPC-157 and ipamorelin
  • Bloodwork log with your lab's reference ranges and each marker's history across draws
  • Trend charts for your check-in metrics and a weekly report
  • Streaks, 11 levels from Paper to Diamond, 42 badges, daily challenges and weekly quests
  • Apple Health sync: optionally reads HRV, resting heart rate, steps, active energy, sleep and body weight
  • Home Screen and Lock Screen widgets for your streak, level, next badge and next injection
  • CSV import from a spreadsheet, CSV export, and a printable Doctor Report (PDF) for clinic visits
  • Available in 11 languages

Log your next dose in seconds.

Download on the App Store

Who it's for

Men on testosterone replacement therapy (TRT) or hormone therapy who want a TRT tracker or testosterone injection log; anyone who wants to track testosterone cypionate or enanthate shots, rotate injection sites and remember their next pin day; people who keep an eye on their bloodwork, such as total and free testosterone, estradiol and hematocrit; people who also track hCG, anastrozole, GLP-1s or peptides; and anyone who wants a private log to bring to their doctor.

Privacy

Trough has no account and no sign-up, and it shows no ads. Your check-ins, injections, bloodwork and notes are stored on your iPhone, not on a Trough server, and nothing syncs to the cloud. Apple Health access is optional: Trough reads HRV, resting heart rate, steps, active energy, sleep and body weight, and only writes body weight. Exports are created on your iPhone and shared only where you choose. Purchases are handled by Apple, and Trough uses RevenueCat to confirm a Pro subscription. As its App Store privacy label states, the app may collect purchase history that isn't linked to your identity, and none of it is used to track you.

Languages

English, Dutch, French, German, Italian, Japanese, Korean, Polish, Portuguese (Brazil), Spanish and Swedish.

Price

Trough is free to download, with daily check-ins and the Protocol Score, the injection log with site rotation and reminders, Apple Health sync, widgets, and streaks, levels and badges. Trough Pro unlocks the estimated level curve, full trend history, bloodwork tracking, adjuncts and peptides (including GLP-1s), the weekly report and the Doctor Report PDF:

  • Monthly$9.99 (7-day free trial for eligible new subscribers)
  • Yearly$49.99 (7-day free trial for eligible new subscribers)

Prices are in US dollars and vary by country. Subscriptions renew automatically unless canceled at least 24 hours before the end of the period, and you can manage or cancel them in your Apple ID settings.

Frequently asked questions

Does Trough show my actual testosterone level?

No. The curve is an estimate calculated from your own injection log and each compound's typical half-life, not a lab measurement. Your bloodwork is the measurement, and you can log it in Trough to compare. Trough is a tracking tool, not medical advice.

Which compounds can I track?

Testosterone cypionate, enanthate, propionate and undecanoate, including multi-ester stacks, plus hCG, anastrozole, GLP-1s such as semaglutide and tirzepatide, and peptides such as BPC-157 and ipamorelin.

Does Trough help me rotate injection sites?

Yes. When you log an injection you pick one of 10 sites, and Trough suggests the next site based on the ones you've used least recently.

Do I need an account?

No. There's no sign-up, and your data stays on your iPhone. Nothing is uploaded or synced.

Does Trough read my Apple Health data?

Only if you allow it. It can read HRV, resting heart rate, steps, active energy, sleep and body weight, and it only writes body weight.

Can I share my log with my doctor?

Yes. Trough Pro creates a printable Doctor Report (PDF) with your protocol, bloodwork tables, trends and notes for your doctor, and you can also export your check-ins and bloodwork as CSV.

Is Trough free?

It's free to download, with daily check-ins, the Protocol Score and the injection log. Trough Pro is available monthly or yearly, each with a 7-day free trial for eligible new subscribers.

Which devices and languages does it work on?

iPhone with iOS 17 or later, with Home Screen and Lock Screen widgets. It's available in English, Dutch, French, German, Italian, Japanese, Korean, Polish, Portuguese (Brazil), Spanish and Swedish.

Keep your whole protocol in one private place.

Download on the App Store

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