Best TRT Tracker App for UK Men in 2026
NHS Nebido users: track troughs and energy dips across your 10-14 week cycle. The 4 best TRT tracker apps ranked and compared for UK men.
You know that feeling in week 11 or 12 of a Nebido cycle. Energy is gone, libido is flat, motivation has dropped off. You are pretty sure it is a trough, but you have no real data to bring to your next clinic appointment. A TRT tracker app changes that completely.
UK men on TRT face a specific tracking challenge: NHS protocols tend to be longer injection intervals (Nebido every 10-14 weeks) or multi-ester compounds like Sustanon, both of which create complex PK curves that generic health apps were not built to handle. The right tracker turns your subjective "I feel off" into documented evidence your prescriber can actually act on.
This guide covers the four best options available to UK users in 2026. For the full comparison of all 7 tracker apps, see the complete TRT Tracker App Guide.
The Quick Answer
Regimen is the best TRT tracker app for UK users. The combination of injection site rotation, pharmacokinetic (PK) curves for both Sustanon's multi-ester mix and Nebido's long-release profile, and health correlation tracking makes it the most capable option for how TRT actually works in the UK.
If privacy is your top priority and you are on a straightforward single-ester protocol through a private clinic, OptiPin is worth a look. But for NHS Nebido users and Sustanon users who need to understand their trough pattern, Regimen's PK modeling is the differentiating feature.
The Top 4 Apps, UK-Framed
1. Regimen: Best overall for UK users
iOS and Android. Free for one compound, GBP 3.99/month (roughly) for multi-compound tracking. 4.9 stars (70+ reviews).
Regimen supports 600+ compounds, which matters if you are adding ancillaries like anastrozole or HCG alongside your TRT protocol. The PK curve visualisation shows you where you are in your Nebido cycle on any given day, so the energy drop in week 12 stops being a surprise. You can log energy, libido, and sleep quality alongside injection dates and see the correlation over time. That is exactly the kind of documented history that helps you have a productive conversation with your NHS prescriber or private clinic.
For Sustanon users: Regimen handles multi-ester PK separately, which means the propionate peak and the decanoate trough show up as distinct patterns rather than a single average line.
Ready to track your protocol?
- Smart reminders so you never miss a dose
- Progress tracking with photos and weight
- Medication level curves for every compound
2. OptiPin: Best for privacy-focused users
iOS only. Freemium with a GBP 3.20/month premium tier. 4.47 stars across 75 reviews.
OptiPin keeps your data fully on-device. No cloud sync, no account required. It tracks 100+ medications with a straightforward log and reminder system. It will not give you PK curves or health correlations, but if you want the simplest possible tracker that stays off any server, it is genuinely good at what it does.
3. TRT Plus: Best for deep protocol analysis
iOS and Android. GBP 10.30 one-time purchase. 4.2 stars (iOS), 3.6 stars (Android).
TRT Plus offers the most detailed PK modeling available in any TRT tracker, including OCR bloodwork scanning. It is built for people who want to run the numbers themselves. The iOS version is significantly more polished than Android. Worth considering if you are a data-driven user on a private clinic protocol who reviews bloodwork closely.
4. Himcules: Lightweight free option
iOS only. Free. 5.0 stars (3 reviews).
Himcules is TRT-only and genuinely minimal: home screen widgets, clean injection logging, no frills. The review count is too low to draw conclusions about reliability, but the widget integration is a nice touch if you want your injection countdown visible without opening an app.
Tracking on NHS Nebido
Nebido (testosterone undecanoate 1,000mg/4mL) is the most commonly prescribed injectable in the NHS TRT pathway. The injection frequency of every 10-14 weeks is convenient in theory, but the trough in the final 2-4 weeks before your next injection is a real clinical problem for many men.
Here is what tracking gives you in this context: you can log your injection date and then track your energy, mood, libido, and sleep quality week by week. After two or three cycles, Regimen's correlation charts show you exactly when your symptoms start declining relative to injection date. That is not just useful for you. It is a documented argument for your prescriber to either adjust your interval or explore a different protocol.
If you are on Sustanon through an NHS GP or a private clinic like Optimale, Leger Clinics, or The Man Clinic, the multi-ester tracking in Regimen handles the different release profiles (propionate, phenylpropionate, isocaproate, decanoate) so you are not trying to interpret four curves manually.
For a full picture of the UK TRT access landscape, the TRT UK Guide covers NHS routes, private clinics, and bloodwork requirements in detail.
Frequently Asked Questions
Can I use a TRT tracker app with my NHS GP?
Yes. The data you collect in a tracker app is yours to use however you want. Showing your GP a chart of symptoms correlated against injection dates is a legitimate and useful way to support a protocol adjustment request. NHS GPs respond to documented patterns.
Does Regimen work for Nebido's long injection interval?
Yes. Regimen's PK modeling handles testosterone undecanoate's extended release profile. You set your injection date and dose, and the curve reflects the actual release pattern rather than assuming a short-ester peak-and-trough shape.
Is OptiPin available in the UK App Store?
Yes. OptiPin is available on the iOS App Store for UK users. Note it is iOS only (there is no Android version). If you are on Android, Regimen or TRT Plus are your main options.
What if I'm tracking Sustanon and a second compound like anastrozole?
Regimen handles multi-compound protocols with separate tracking for each compound. You can log Sustanon, anastrozole, and any other ancillaries in the same dashboard, which is useful for understanding how AI dose adjustments correlate with mood or symptom changes.
Is there a free TRT tracker that works well for UK users?
Regimen is free for single-compound tracking. If you are on a basic Sustanon or Nebido protocol without ancillaries, the free tier gives you injection logging, reminder scheduling, and the PK curve visualisation. You only need the paid tier when adding a second compound.
Track your UK TRT protocol with Regimen. Sustanon, Nebido, and Testogel supported. PK curves, injection site rotation, and health correlation. Free for one compound.
Regimen is a tracking tool, not a medical service. We do not provide medical advice. Always consult your healthcare professional before starting, changing, or stopping any medication protocol.