TRT Plus
TRT Plus is made and published by Nathan Southern. AppBrain is an independent app data site and isn't affiliated with Nathan Southern. The app name, icon, screenshots and description belong to Nathan Southern and are shown as published on the App Store.
AppBrain's verdict
- Rating on App Store
- 4.05
- 20 ratings
- Last updated
- September 18, 2026
- Size
- 60.3 MB
It doesn't have enough ratings yet to judge what users think.
User feedback
Ratings and reviews on the App StoreComments on TRT Plus for iOS
We don't have enough comments to show example comments. Please check back later.
Store listing
By Nathan Southern, from the App StoreDescription by Nathan Southern Written by the developer, not by AppBrain. Click to read.
The framework for TRT and enhanced protocols.
At a glance: a protocol planner built to replace your spreadsheets and notes.
Under the hood: a full hormone optimization platform with AI-powered bloodwork analysis, advanced pharmacokinetic modeling, and a knowledge base covering everything from TRT fundamentals to peptides and advanced enhanced protocols.
See the full framework at trtplus.app
NOT A LOGGING APP. A COMPLETE FRAMEWORK.
From ordering the right bloodwork through TRT Plus pathology partners, to interpreting your results, dialing in with the Testimator™, and adjusting your protocol — every feature exists to close that loop.
Order → Interpret → Dial In → Adjust → Repeat.
MY PROTOCOL
— Daily Dashboard: your full schedule at a glance — checkboxes, visual syringe, injection stacking
— 100+ pre-configured compounds: anabolics, TRT ancillaries, peptides, GLPs, SARMs, Supp Stacks — one tap to add
— Dose Titration: set automatic ramping and tapering plans for any compound
— Peptide reconstitution calculator — enter dry powder, bac water calculates automatically
— Pharmacokinetic charting: the only TRT app with a true multi-route PK model — injectables, orals, peptides, and testosterone cream
— Peak-to-trough T level fluctuation modeling based on your exact protocol — see the swing, not just the average
— Frequency Tuning: detects when your peak-to-trough swing is higher than it needs to be and suggests the most practical schedule to smooth it
— Rotation Planner: set your sites once, the app forecasts the sequence
— Testosterone cream with Topi-CLICK® interface and site-specific absorption modeling
— Inventory management with advance reorder notifications
— Two modes: Classic for straightforward TRT, Advanced for the full enhanced stack
MY BLOODWORK
— Automated OCR scanning — upload any photo or screenshot, markers extract automatically
— Enhanced reference ranges calibrated for TRT and enhanced athletes, not the general population
— Reference ranges that move with your health — the Cardio-Metabolic Cascade feeds your cardiovascular markers into a personalized testosterone ceiling
— Hormonal balance scored against your true androgenic load using exclusive DHT receptor potency and paracrine amplification model
— Biomarker Score: a weighted composite across 15 markers — hormones, cardiovascular, liver, kidney, hematology
— Free T via four methods: Vermeulen, Mazer, Södergård, and Zakharov — exclusive to TRT Plus, and the only model accurate at supra-physiological levels
— AI Bloodwork Report: 8 sections interpreting your results alongside your active protocol in context
— Pathology partner integration for athlete-specific panels: ApoB, Cystatin C, GGT (region dependent)
THE TESTIMATOR™
Predict your testosterone response across any protocol before you run it — anchored to your actual bloodwork, not a population average. Understand the shape of your response.
KNOWLEDGE BASE
100+ topics across 15 categories. 150+ studies cited. Zero generic AI content. Every biomarker and recommendation covered with the depth for someone actually running a protocol.
THE BUILD
Built by an application engineer with 25 years of experience — and on TRT — in collaboration with TRT clinics, coaches, and pathology partners. Grounded in de-identified data from thousands of real-world TRT patient results. Not a general health app retrofitted. Built from the ground up for this population.
Charted #2 in App Store Health & Fitness · Top Paid TRT App
Full feature breakdown, screenshots, and the engine behind it all: trtplus.app
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 60.3 MB
- Content rating
- Medium
Technologies used by TRT Plus
Releases
Updates seen on the App Store- Version
- 3.1
- Launched
- May 2023
No changelog data
Alternatives
Similar apps and more from Nathan SouthernAlternatives to TRT Plus
Also available on Google Play
Rankings
App Store top chartsApp Store Rankings for TRT Plus
About the app and developer
About TRT Plus
TRT Plus is a health & fitness app developed by Nathan Southern.
User Ratings
TRT Plus is rated 4.05 out of 5 stars. The rating is based on 20 ratings.
App Information
TRT Plus is freely available from the App Store. The app size is 60.32 MB. The latest version available is 3.1. The last update was on September 18, 2026.
Technical Requirements
The app has a content rating of Medium Maturity. The app has been available on the App Store since May 2023.
Developer information for Nathan Southern
Address: