Trough
For men on prescribed TRT

Walk into your appointment with the whole picture on paper.

Trough is a private record of your testosterone treatment. Log your doses, copy in your blood results, and print a clear summary for your doctor or clinic.

Tell me when it's out See a sample summary

Coming to iPhone. No account, and your record stays on your phone.

How it works

Three small habits. One useful summary.

1

Log each dose

A couple of taps when you take it. Add where you injected if you want to. A reminder is there if you would like one.

2

Copy in your bloods

Type the values from your lab report, with the lab's own range and flag. With Trough Plus you can keep a photo of the report beside them.

3

Print the summary

Before your appointment, Trough lays your record out as a summary to print or share as a PDF, with the essentials on the first page.

What you can record

Everything your clinician asks about, in one place.

  • DosesWhat you took and when. The summary counts on-time, late and missed doses for you.
  • Blood resultsEach result exactly as your lab reported it, side by side across reports.
  • How you have beenFour quick ratings a week for energy, mood, libido and sleep.
  • Injection sitesTap a front and back body chart to note where each injection went.
  • Your questionsNote them as they occur to you. They print on the summary so none gets forgotten.
  • Changes, side effects and weightChanges are recorded as your clinician instructed them, in your own words.
The injection-site screen, with a body chart and one area selected
The blood results screen, listing three lab reports by date
Private by design

Your record stays on your phone.

Trough has no account and no server. We cannot see what you enter, so there is nothing for us to lose, sell or share.

No sign-upOpen the app and start. No email, no password.
EncryptedStored on your phone and locked with Face ID if you choose.
No adverts, no trackingNothing in the app reports on what you do.
Yours to takeBack up, export or delete everything whenever you like.
What Trough does not do

A record, not a second opinion.

Trough keeps what you enter and presents it clearly. Decisions about your treatment stay where they belong, with you and your clinician.

No medical adviceIt never tells you what to take, change or stop.
No dose calculatorsIt records the dose you were prescribed. It does not work one out.
No estimated levelsNo curves or forecasts. Only the results your lab actually reported.
No judging your resultsRanges and flags are the ones printed on your own lab report.
A man hands a printed page across the desk to his doctor
For clinicians

Ten minutes go further when the record is already on the desk.

The first page of the summary carries the essentials: current treatment, doses taken and missed, blood results across reports with each lab's own ranges, the patient's ratings, and the questions he wants to ask.

Everything on it was entered by the patient and is labelled that way. Trough adds no interpretation, no advice and no reference ranges of its own.

Download a sample summary
Pricing

Free to keep your record. A small subscription for the extras.

Trough

Free

For as long as you use it.

  • Log doses, blood results, check-ins and weight
  • Dose reminders and app lock
  • Summary of your most recent period
  • Back up and export everything, always

Trough Plus

£2.99 a month, or £19.99 a year

Everything in free, and:

  • Summary of your full history, or any dates you choose
  • The longer check-in before each appointment
  • Photos of your lab reports

Everything is unlocked until you share or print your first summary, or for three months, whichever comes first. If you stop paying, nothing you recorded is ever locked away: you can still see it, back it up and export it. Prices are for the UK; the App Store shows the price for your country.

Questions

Worth knowing before you start.

Who is Trough for?

Adults who have been prescribed testosterone by a clinician, whether through a GP, an NHS clinic or a private clinic, and who want to keep an orderly record of their treatment.

Is it a medical app?

It is a record-keeping app. It stores what you enter and prints it for your appointment. It does not diagnose, advise or interpret, and it is not a substitute for your clinician.

Which units does it use?

Blood results are kept in the units printed on your lab report. UK units such as nmol/L are offered first on a UK phone, and US units such as ng/dL on a US phone. Trough never converts a result.

What happens if I change phone?

Make an encrypted backup file on the old phone and restore it on the new one. Because there is no account, the backup is the only copy, so keep it somewhere safe.

Does it work with gels, or only injections?

Injections, gels and creams are covered, on a daily, weekly, twice-weekly or every-few-days schedule. Tablets taken more than once a day are not supported yet. Recording an injection site is always optional.

When is it out?

Trough is being finished now, for iPhone first. Send a note to hello@troughapp.com and we will write to you once, when it is available. Your address is used for that and nothing else.

Be the best-prepared patient in the room.

Trough is coming to iPhone. Leave a note and we will tell you the day it is out.

Tell me when it's out