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History, analysis and account

Which data matter most for tracking strength progress?

At minimum, record the exact movement variation, load, reps and date. RIR, tempo, rest time and range of motion provide useful context when recorded reliably. Compare like with like.

Screenshots

App interface screenshots and illustrated Grunty store visuals. Tap an image to enlarge it.

Squat progression with training-volume chart, session dates, working sets and records in English.
Compare sessions using the same exercise and variation. Warm-up sets are excluded from the displayed working-set volume.

Practical tip

A heavier load with much less range of motion or very different RIR is not the same performance.

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