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App Store Apps > Health & Fitness > TRT Plus
TRT Plus icon

TRT Plus

by Nathan Southern · Health & Fitness · Free
On the App Store since May 2023 · Data updated 2026-10-17
App Store

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

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Store listing

By Nathan Southern, from the App Store
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Screenshots by Nathan Southern, from the the App Store listing
Description by Nathan Southern Written by the developer, not by AppBrain. Click to read.
Hormone optimization. Understood.

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
Official page on the App Store Also on Google Play

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

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Rankings

App Store top charts

App Store Rankings for TRT Plus

This app is not ranked

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

Nathan Southern

Address:

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Overview Alternatives Reviews Rankings Technology
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