STRNTH: Strength Training 40+

Rebuild strength properly. Strength training built for lifters in their 40s, 50s and 60s. Smart progression, age-aware recovery and proof your training is working.

Most strength apps are written for 25-year-olds. STRNTH is for people who have lifted before, or are starting fresh now, and want to train for the long game.

Open the app. Your session is ready. Log a set in two taps. Watch the numbers climb week by week.

Free forever No card required, no time limit. These features stay free.

• Workout logging across sets, reps and weight, including bodyweight, assisted and added load
• Built-in programmes with multi-week blocks and deloads baked in
• Two-tap exercise swaps mid-workout
• Rest and tempo timers with voice cues
• HIIT preset library with Bluetooth heart rate and smart-trainer support
• Body composition with caliper body fat, waist to height and fuel guidance
• The STRNTH Index, PRs by muscle group and a year-long trend line
• Customisable home dashboard with drag-and-drop widgets
• Fatigue-aware readiness chip based on training stress and age
• Ask STRNTH library of curated answers on training, recovery and nutrition
• Workout history with charts, PR badges and exercise breakdowns

STRNTH Plus (Requires paid plan) Add custom content and unlock the full catalogue.

• Custom programmes: design a 4, 8 or 12 week block with your own splits and lifts
• Custom workouts built from scratch
• Custom HIIT with your own blocks and timing
• Add your own exercises with muscle group tagging
• Full programme catalogue and full training history
• Log workouts retroactively on past dates

STRNTH Pro (Requires paid plan) Everything in Plus, with cloud backup and the age-aware AI coach.

• Cloud backup. Sync across devices, reinstall without losing data
• Age-aware AI coaching weekly review of readiness, training density and recent volume
• Ask STRNTH AI: free-form questions answered with your last six months of training
• Save adapted workouts when you change exercises mid-session
• Plateau coaching when a lift stalls
• Build this week from your recent training
• Community programmes: publish and enrol with other Pro members

Paid plan details STRNTH Plus and STRNTH Pro are auto-renewing paid plans, billed monthly or yearly.

Payment will be charged to your Apple ID account at the confirmation of purchase. Your paid plan automatically renews unless cancelled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your paid plan in your account settings on the App Store.

STRNTH is built by Billy, a developer-lifter who got tired of fitness apps that treated him like a 22-year-old. Quiet by design. Honest about pricing. Built for the long game.

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