SynergyA side-effect tracker that narrows down what's behind a symptom
Synergy logs side effects next to everything you take, then works through the timeline to narrow down what changed before a symptom showed up. It gives you a record to bring to a clinician — it does not diagnose.
Log it when it happens
A side effect takes a few taps: what, when, how strong. It lands on the same timeline as your doses, supplements and peptides.
The analyzer works the timeline
Reacting to something while taking four things? The side-effect analyzer works through what changed and when, and gives you a record to bring to a clinician.
A record, not a diagnosis
Synergy never names a cause as fact and never suggests a dose. It shows you the timeline so the conversation with your clinician starts from data.
Weight and Apple Health alongside
Connect Apple Health to see weight trends next to your protocol; bloodwork trends are part of Synergy Pro.
Made for use, not for show
Log it. See where it went. See what it touches.
Private by design
Your tracking data lives on your device, with optional cloud backup you control. No ads, no data sold. Built in the USA.
Synergy is an informational and tracking tool; it does not source or sell any compound and never suggests a dose. Free tier: interaction checks, label scanning, side-effect log, and export. See the comparison and the FAQ. Trackers by medication: semaglutide · tirzepatide · retatrutide · liraglutide · dulaglutide · all apps compared.