More than one
schedule.
Two schedules is more than twice the bookkeeping: different intervals, different vials, and levels that overlap. pinning keeps each one separate, draws them on one chart so the overlap is visible, and books every dose against the vial it actually came out of.
What actually goes wrong
One schedule fits in your head. Two rarely do, because the intervals drift out of phase and the vials stop mapping cleanly onto what you are doing.
The failure is usually inventory rather than timing: a vial runs out earlier than expected because doses were counted against the wrong one, or against nothing at all.
How pinning handles it
One chart, every schedule
Levels are drawn together from each compound’s half-life, so where they overlap is something you can see rather than work out. Anything without a half-life is named under the chart instead of being silently left off.
Vials belong to schedules
A vial can be linked to a schedule, moved to another, or unlinked. Each logged dose draws down the vial it names, so what is left is counted.
Two schedules free, more on Pro
The free tier runs two at once, and the paid tier lifts that. Everything else — the log, the curves, the calculator — is free at either.
What it will not do for you
- — It will not tell you whether running two things together is sensible. It draws what you told it and nothing more.
- — The curves are estimates from published half-lives, many of which are averages and some of which do not exist — the app marks those rather than smoothing over them.
Can I track several compounds at the same time?
Yes. Two schedules run at once on the free tier and more on Pro, and their levels are drawn on one chart so the overlap between them is visible.
How do I know which vial a dose came from?
Because logging a dose asks. The pin is booked against that vial and draws it down, so the remaining amount is a count rather than an estimate.
Why is one of my schedules missing from the chart?
Because it has no half-life set, which is what the curve is drawn from. The app names any schedule left off underneath the chart and links to where the figure is entered.
For informational purposes only — not medical advice