RX Engine: WOD & Strength Log

RX Engine is the training app for functional fitness, powerlifting and CrossFit athletes who take their data seriously. No account, no cloud, no ads — your workouts stay on your phone. Log strength, WODs and PRs and track your long-term progress.

─── STRENGTH ───

Log every strength session with the structure that fits your style:

• SETS — free input per set

• INTERVAL — fixed reps with adjustable rest time

• LADDER — automatically progressing percentage of your 1RM

• BUILD-UP — step by step toward your maximum

The app calculates your estimated 1RM (Epley formula) after every set.

─── WOD ───

Four workout-type-specific scoring methods:

• AMRAP — score by rounds and bonus reps

• FOR TIME — score by finish time, optional time cap

• EMOM — track each minute, including partial reps

• TABATA — 20s work / 10s rest, score = lowest round

Log classic benchmark workouts like Fran, Cindy and Murph separately in your logbook.

─── PRs ───

Store all your personal records per exercise.

• Gym log / workout journal

• Personal record tracking

• Built-in 1RM calculator (Epley formula) per exercise

─── LOG ───

Browse your complete training history including:

• Progress charts per exercise

• Volume per session

• Intensity zones relative to your 1RM

• Benchmark score timeline

─── MORE ───

✓ Fully offline — no account needed, no data sent to servers

✓ Built-in rest timer and stopwatch

✓ Dark theme, designed for the box environment

✓ Available in 11 languages

✓ Free to use