Guide
Semaglutide and tirzepatide are weekly injections on a titration ladder, with side effects that cluster around step changes and a result that only shows up over months. That is a tracking problem, and a reminder app is the wrong shape for it.
Standard semaglutide runs 0.25, 0.5, 1, 1.7 and 2.4 mg, four weeks apiece; tirzepatide runs 2.5 through 15 mg in six steps. Set the phases once and the schedule advances itself on the right dates, with a reminder before each step change. You can hold at a step, go back down one, or stop — none of which disturbs the history behind it. Map your own ladder before you start.
Nausea and appetite changes tend to spike after a step up and settle. Logged with a severity, they plot against your dosing timeline, so you can see whether week three of a new step is genuinely worse or whether you are remembering the bad days. That is the difference between deciding to hold a step and guessing.
Losing weight is easy to measure and easy to misread. What matters is what came off. A smart-scale or gym body-scan import brings in body fat, muscle mass and body water, so a plateau on the scale that is actually a recomposition reads correctly instead of looking like failure.
Put the vial price in once and every logged dose carries it — cost per dose, per month, cost per pound lost, and an estimate of what reaching your goal will cost from where you are now. Very few trackers compute the last one, and it is often the number that changes a decision.
HbA1c, fasting glucose, lipids and liver markers are the panel most people on a GLP-1 end up watching. Import the PDF from your lab portal rather than typing it, and put a marker, a dose and a body metric on one chart.
That is the common panel, not the limit. Over 400 markers are recognised by name, from a standard CMP to specialty panels, and any marker your lab reports is tracked and charted whether the app knows it or not — with no cap on markers, draws or history on any plan.
Adding a Wegovy, Ozempic, Mounjaro or Zepbound pen does not need you to look up what is in it. Pick the brand and the strength and the amount and liquid are filled in as the carton states them — how much is in the device, and in how much liquid — with every figure still editable, because compounded vials rarely match a carton.
These are product facts and nothing more: no starting dose, no ladder, no recommendation. The line between “this pen holds 0.25 mg in 0.5 mL” and “take 0.25 mg” is the line between a fact and a prescription, and the app only ever states the first.
A weekly injection raises an obvious question the following week: did it last. When you log a dose you can say how the previous one held — strong, fading, or worn off. Once there is enough of it, your protocol screen says in one sentence when yours tends to fade and over how many cycles, because “day 5” from two cycles and from twenty are different statements and you cannot tell them apart without the number.
Below three cycles it shows nothing at all rather than a confident answer drawn from two points, and a dose you never answered for counts as unknown rather than as “it held fine”. It reports what you logged and suggests no dose, split or change — that is a conversation for your prescriber, and the record you bring is better for having it written down.
BioHack Track is free. Unlimited compounds, protocols, doses and history, no ads and no account — and the backup and CSV export are free too, so your data is never held hostage.
One that understands the titration ladder rather than treating every week as identical — so it advances the dose on schedule, warns you before a step change, and lets you hold or step back down without breaking your history. It should also take your weight, body composition and labs, because dose adherence alone does not tell you whether it is working.
Set the schedule once and log with one tap when you take it. BioHack Track shows the estimated level between injections from the compound's half-life — semaglutide's is about a week — so the chart shows estimated active levels rather than only marking the days you injected.
Yes, and side by side if you have switched. Both are in the compound library with their half-lives and standard ladders, and a switch mid-protocol keeps both stretches on the same timeline.
Yes. Enter the vial as you have it, in mg or units, and reconstitute with the built-in calculator if it arrived lyophilised. The app does not care where the vial came from.
No, and it should not. It maps the ladder your prescriber set, does the arithmetic and shows you the result. Dosing decisions are between you and them.
For personal tracking. Not medical advice, and not a substitute for your prescriber.