StrengthBox: Workout Tracker

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Everyone
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About this app

StrengthBox is the workout log for people who lift. Log sets in seconds, follow programs that add the weight for you, and watch three white lights come on when you hit a new record.

PROGRAMMES THAT DO THE THINKING
• Ready-made programs: 5/3/1, StrongLifts 5x5, PPL, Upper/Lower, Full Body, PHUL, Arnold Split, German Volume Training and more
• Automatic progression: make every set and the weight goes up next session; miss and you repeat it
• Percentage programs worked out from your max
• Build your own, or follow one your personal trainer sends you

FAST LOGGING ON THE GYM FLOOR
• Sets, reps and weight in a few taps, with last session's numbers alongside
• Plate calculator that shows exactly which plates go on the bar
• Rest timer that starts when you tick off a set
• Supersets, AMRAP, EMOM and For time with their own clock
• Cardio intervals, like 6 × 400 m

HYROX-STYLE HYBRID RACE
• Simulate a full or half race: 8 × 1 km runs with stations in between
• Weights for your division, splits for every segment and your best segments
• The Hybrid Race Prep program, three days a week

SEE HOW STRONG YOU ARE
• Personal records detected automatically
• Strength level compared with others of your age and weight class
• Recovery map of the muscles you've trained
• Monthly challenges, medals and a record board

TRAIN WITH FRIENDS
• Start a crew and see who's training right now
• Give props to the others in your crew

EASY TO SWITCH
• Import your training history from StrengthLog (CSV) and carry on where you left off

STRENGTHBOX PREMIUM
Free, you log as much as you like, follow one program and see the last five days of history. Premium unlocks unlimited programs, your full history and charts of your records. Try it free before you decide.

No ads. Built in Sweden.
Gym log with programs that add the weight for you, new PRs and Hyrox races.
Updated on
Oct 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

StrengthBox 2.2
• Blocks in your session: supersets, AMRAP, EMOM and For time with their own clock and result
• Hybrid race: simulate a Hyrox-style race with splits, divisions and best segments
• New program: Hybrid Race Prep
• Cardio in intervals, like 6 × 400 m
• Lamps sit in a black lamp box
• A session is never lost: it's kept on your phone until it's uploaded
• Fixes for exercise order, the next session and skipped days