Meet TroughMap — Map when your GLP-1 shot wears off

Health And Fitness

TroughMap

Map when your GLP-1 shot wears off

What TroughMap does

Know the exact day your GLP-1 wears off, before the food noise blindsides you.

Semaglutide and tirzepatide are once-weekly shots, but appetite suppression isn't flat across those seven days. Most people feel quietest in the first 48 hours and then notice hunger, cravings, and that familiar food noise creeping back near the end of the cycle. The trouble is it feels random in the moment. TroughMap proves it isn't. By anchoring a quick daily check-in to your injection day, it surfaces your personal wear-off day, the recurring trough where your shot loses its grip, so a hard Thursday stops feeling like a personal failure and starts looking like a predictable pattern you can plan around.

This is not another macro tracker or weight-loss diary. TroughMap does exactly one thing and does it well: it maps appetite against the injection cycle. Each day you rate your hunger and food-noise level on a simple scale and optionally jot a note. TroughMap aligns every entry to Day 1 through Day 7 of your dose week and builds a heat strip, a color-coded map of where in the week your appetite stays calm and where it spikes. Over a few cycles the pattern locks in. You'll see your trough day at a glance, spot whether a dose change moved it, and walk into your next prescriber appointment with a clear picture instead of a vague memory.

It's built for the way real GLP-1 life works. Switch your shot day, skip a week, or titrate up, and TroughMap re-aligns the map without losing your history. The weekly curve shows your average hunger by cycle-day. The calendar marks every injection and every check-in. And because this is private health data, none of it ever leaves your phone. There is no sign-up, no email, no cloud sync, and no subscription wall. Open it, tap, and you're done in five seconds a day.

Whether you're new to a GLP-1 and learning your body's rhythm, or months in and fighting an end-of-week rebound, TroughMap turns a fuzzy feeling into a map you can actually use.

• Anchor every entry to your weekly injection day, with easy shot-day changes • One-tap daily hunger and food-noise rating, plus optional notes • Per-day heat strip that reveals your personal wear-off trough • Weekly appetite curve showing average hunger across Day 1 to Day 7 • Injection calendar with dose and check-in history at a glance • Re-aligns automatically when you switch shot days or titrate • 100% offline and on-device, no account and no subscription • Clean, fast, and built for a five-second daily check-in

A look inside

Tap any screenshot to open the full-resolution version.

What's inside

• Cycle-anchored daily check-in — A single screen to rate hunger and food noise and snap the entry to its Day 1-7 position in the current injection cycle, with an optional note.
• Wear-off heat strip — A color-coded per-day strip that aggregates every cycle to show exactly which day of the week appetite returns, highlighting the personal trough.
• Weekly appetite curve — A line/area chart of average hunger by cycle-day across all logged weeks, so users see the suppression-to-rebound arc at a glance.
• Injection calendar & re-align — A calendar marking each shot and check-in; changing the shot day or titrating re-aligns all history without data loss.

Why we built it

GLP-1 appetite suppression fades unevenly across the 7-day cycle, so users get blindsided by an end-of-week hunger rebound that feels random and undermines their plans and their dose-change conversations with prescribers.

What makes it different

TroughMap makes the within-week appetite trough the central object, anchoring a daily food-noise rating to each injection cycle to expose a personal wear-off day. Incumbent GLP-1 apps (Ro, Found, Noom) bundle coaching, macros, and weight; generic trackers like Bearable measure mood across no cycle anchor. Within our o…

Who it's for

Anyone who wants honest tracking without a coach, a subscription, or a streak guilting them at 11pm.

In one line: Map when your GLP-1 shot wears off

Try it

See the Map when your GLP-1 shot wears off for the full feature list, the info table, and support links.

Use TroughMap, found a bug, or have a feature request? Comments are open below — anonymous is fine.