The Iron Church, reborn
An AI personal trainer that writes your plan for your discipline, your kit and your week, then coaches every session. Built by one person, written up one dispatch at a time.
Iron Church is reborn
The app has been rebuilt from the ground up. Same Brodin, same training, and every screen redrawn to be cleaner, calmer and quicker to read between sets. Your plans, rites, records and honours came straight across.
- Five surfaces, one swipe apart: Body, Plan, Today, Records and the Temple.
- Brodin, one tap from every screen, already knowing what you were looking at.
- The live rite, redrawn, with his cue, the demo clip, swaps and the plate calculator.
- The Forge, rebuilt: build your own block, and Brodin reviews it before you commit.
Three steps in
Let Brodin name your path
Five questions about what you want, how long you have trained, your days, your kit and your temperament, and Brodin names one of 21 disciplines as yours. Or choose from the full list. Free, no account.
Brodin writes your block
A block of sessions in your discipline’s shape, for the kit you own and the days you can train. Most disciplines run four weeks: three that build and a lighter one to recover.
Train, log, climb
Each session’s weights come from how the last one went. Every set becomes an estimated max, every record is kept, and you climb from Novice to Eternal.
What Brodin does
Brodin is an AI model working inside rules written in code. He does the writing and the talking; the code checks his plans and does the counting.
Writes your block
Four weeks built for your discipline, your kit and your week, checked in code before you see it.
Sets today’s weights
Heavier when you had it; the same weight and one more rep when you ground it out.
Checks in before you lift
A quick check of your sleep, energy and stress lightens a session after a rough night.
Knows when to back off
Five fatigue signals decide when your lighter week comes, or whether the block runs on.
Estimates your max from every set
Brzycki, Epley and Mayhew, each used for the rep range where it is most accurate.
Talks it through
Ask him anything. He reads your log and your plan before he answers.
All thirteen, each with how it works and the science behind it: Meet your coach at theironchurch.co.uk.
Free to start
Free
- Five AI plans and rites from Brodin
- Five movement swaps a day
- Two campaign blocks toward a date
- The Forge, logging, records and the muscle map, always free
Premium
- Brodin writes your plans and rites past the free five
- Swap movements up to 30 times an hour
- Campaign blocks toward a date past the free two
Web prices shown. On iPhone, the App Store shows the price in your currency, and any free trial, before you pay.
Posts from the build
Iron Church is reborn
The app rebuilt from the ground up: what’s new, what Brodin actually does, and the science behind it.
Read the dispatch →Which of the 21 paths of iron is yours?
Brodin asks five questions and names your training discipline, with its history and your first workout.
Take the Naming →Four goals, four engines
Stronger, bigger, leaner, healthier: each is a different adaptation, and how the engine programmes for the one you chose.
Read the breakdown →Why do people quit fitness training?
Six evidence-backed reasons people abandon the gym, and why flexible programming keeps them.
Read the science →Why most AI fitness apps are just marketing
A decision tree with a chatbot bolted on is not AI. The architecture behind Iron Church, and why the context is the product.
Read the build →Enter the temple
Iron Church is live on the web and on iPhone, with Android in beta. Name your discipline and Brodin writes your first plan. Free to start.