Train531: 5/3/1 Strength Coach
AI Training & Workout Planner
About
This app goes beyond basic percentage calculations for strength training. It uses AI to generate personalized supplemental and accessory workouts based on your history, equipment, and goals. Track progress with detailed charts and receive actionable feedback from the AI coach.
What's New in Train531
1.6.1
September 29, 2026
Do your lifts in any order. Starting a week on Overhead Press no longer skips you ahead to the next week: a week moves on once every lift in it is done. Week names now say where you are in the cycle, like "Week 2 · 3/3/3+", instead of a bare "Week 3". A week or lift you pick on Today stays picked. Accessories with no set weight no longer say "BW" unless they really are bodyweight moves. Barbell rows and lunges show the reps, and you choose the weight. Thanks to everyone who wrote in about these.
MoreSubscriptions & In-App Purchases
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Unlimited workouts with AI coaching
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FAQ
What is Train531?
Train531 is a strength training application designed for users following the 5/3/1 program. It differentiates itself by incorporating an AI coach to generate personalized supplemental and accessory workouts, going beyond basic percentage calculations.
How does Train531's AI coach work?
The AI coach analyzes your training history, available equipment, and stated goals to prescribe supplemental and accessory exercises. This aims to eliminate guesswork and optimize your training alongside your main 5/3/1 lifts.
Does Train531 offer a free trial?
Yes, every plan starts with a 30-day free trial, allowing you to experience the full AI coaching features for a month. You can cancel anytime during the trial period.
What are the subscription costs for Train531?
After the free trial, Train531 offers two subscription options: $4.99 per month or $34.99 per year. Both plans provide access to the AI training and workout planner features.
What devices does Train531 support?
Train531 is available on iPhone and iPad. Your training data syncs seamlessly across these devices and the web app at app.train531.com.
How often is Train531 updated?
The latest version available is 1.5.0, which was last updated on August 16, 2026. This indicates a relatively active development cycle for the application.
What is the age rating for Train531?
Train531 has an age rating of 4+. This suggests it is suitable for a broad audience and does not contain mature content.
Does Train531 have ads?
No, Train531 is ad-free. The application focuses on providing a clean and focused training experience without advertisements.
