Feature
A line for every exercise.
Every movement you log gets its own progression, charted on the metric that movement actually progresses by. Spot the trend at a glance.
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The hard part
Not everything progresses by weight
A tracker that only understands kilograms draws a flat line through nineteen sessions on the elliptical, because none of them had a weight to plot. That's not an honest reading of the training — it's a limitation being reported as a plateau.
Each movement is charted on the first metric it actually records, in priority order: weight, then distance, then duration, then reps. A barbell lift progresses by load, a run by ground covered, a dead hang by time, a pull-up by reps. Everything gets a line.
- Weight — barbell and dumbbell work
- Distance — runs, rows, rides
- Duration — planks, hangs, carries
- Reps — bodyweight movements with no load
A deliberate choice
A rising line always means improvement
A run records both distance and time, so either could be charted. Time is the wrong one: covering the same ground faster makes the number go down, and you'd have a chart where some lines improve upward and others improve downward.
Distance is read first on purpose. It keeps every progression on the page pointing the same way, so you can scan a list of movements without stopping to work out which direction is good for each one.
Reading the trend
Fitted, not sampled from the endpoints
The obvious way to say whether a lift is going up is to compare the first session with the last. It's also the way that gets it wrong: one deload week at the end and a movement that has climbed all year reports as declining.
The direction comes from a least-squares fit over every point in the history, so the answer reflects the whole run of sessions rather than whichever two happen to sit at the ends. A per-session rate is shown once there are at least three sessions to fit — with two, the line passes exactly through both and the rate would be saying the same thing twice.
The same fit can be run over a recent window, so "how has this moved in the last month" is directly comparable with "how has this moved since I started" rather than being a different calculation wearing the same label.
Where you'll see them
- The exercise list
- Every movement you've logged, each with a sparkline and its latest value.
- The exercise page
- Full history for one movement — every session, the record, and the trend.
- On a workout
- A sparkline beside each exercise, showing where that session sits.
- In conversation
- Ask how a lift is going and the answer is read from the same data.
Questions
What does the chart actually plot?
One point per day, carrying that day's best effort. Two sessions on the same day collapse to the better of the two, so a light second session can't drag the line down.
How does it chart exercises that aren't measured in weight?
Each movement is charted on the first metric it actually records, in the order weight, distance, duration, reps. A barbell lift progresses by weight, a run by distance, a dead hang by time, and a pull-up by reps — so nineteen sessions on the elliptical draw a line instead of nothing.
Why distance before duration for a run?
Because for a run, better means covering more ground rather than spending more time out there. Charting distance keeps every metric pointing the same way, so a rising line always means improvement and nothing has to be read upside down.
Is the trend just the first and last session?
No. It's a least-squares fit over all the points, so a couple of deload days don't flip a genuinely rising movement to "down". The direction comes from the fitted line, not the two endpoints.
Why don't I see a per-session rate on some exercises?
It needs at least three sessions. Over two points the fit runs exactly through both, so the rate would just be restating the total change in smaller units.
Do differently-spelled exercises get separate charts?
No. Movements are grouped by a canonical form of the name, so "Wrist Curls" and "Wrist Curl" are one history rather than two.
Give it a month and look at the line.
That's when it starts being worth something.
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