For people on GLP‑1 medications

Remember what happened between visits.

Zuyu is a private GLP‑1 companion that keeps your doses, symptoms, injection sites, and weight organized on your device.

Zuyu keeps a private record of your doses, symptoms, injection sites and weight, then organizes it into a clear summary you can bring to your next appointment.

Launching soon

  • Download on the App Store
  • Get it on Google Play

Essential is free. United States. Adults 18 and over.

  • No account to create
  • Your entries stay on your device
  • No ads or trackers
The Zuyu Today screen, showing Sunday September 6, day 7 of the medication week, and the medications scheduled for the day.
The Zuyu Report screen, showing a clinician report for August 31 to September 6 with a 7-day, 30-day and since-last-visit selector.

In the app

A card reading: your next appointment, Wednesday September 16. Your visit is in 10 days.
The clinician report card in Zuyu: August 31 to September 6, five logged days, and a button to preview the clinician report.
A visit preparation card: your next appointment is Wednesday September 16, your visit is in 10 days, with a button to open visit preparation.
A generated Zuyu clinician report with Coverage, Next Appointment, Medication, and Dose and symptom timeline sections.

Appointment preparation

The part you can’t do from memory.

Fifteen minutes with a clinician goes quickly. Zuyu assembles what you logged into one structured report: the last 7 days, the last 30 days, or everything since your last visit.

  • 01MedicationRecorded by you
  • 02Dose history and changesRecorded by you
  • 03Dose and symptom timelineRecorded by you
  • 04Logged experienceRecorded by you

“Nothing is sent until you choose.”From the app

Zuyu organizes the information you recorded. It does not diagnose, interpret results, score medical risk, or recommend treatment.

Privacy and control

Your record lives on your phone.

Zuyu is local‑first. There is no account to create, and no Zuyu cloud holding your health history.

  • No account, no sign-in.Nothing to create, nothing to remember, and no copy of your health entries on our servers.
  • Kept on the device you wrote it on.Your entries are stored in an encrypted database on your phone.
  • No third-party advertising or tracking.Zuyu contains no advertising, attribution, or product-analytics software of any kind, and does not sell personal information.
  • Voice check-in stays on the device.Your device’s own speech recognition turns speech into text. No audio file is written.

Two services receive information that is not a health entry: Sentry receives technical crash diagnostics, and RevenueCat records your subscription status. Neither receives your health entries.

Read the full Privacy Policy
Where your Zuyu record lives A phone outline contains four labelled entries: doses, symptoms, injection sites and weight, held in an encrypted database. A dashed boundary sits outside the phone. Three faint arrows labelled export, print and share cross the boundary only when the person chooses to send something. ON YOUR DEVICE Doses Symptoms Injection sites Weight and notes Encrypted database No account · no Zuyu cloud ONLY IF YOU SEND IT ExportPrintShare

The information you enter leaves your device only when you take an action that sends it, such as exporting a report, sharing or printing a file, or creating a backup.

Estimated medication presence

A picture of your dosing rhythm.

Zuyu models how much of a medication is likely present between doses, from the doses and times you recorded, then puts the symptoms you logged on the same timeline.

Estimated medication presenceA model based on the doses you recorded
A bar chart from August 17 to September 6. Grey bars show the estimated presence of one medication as a percentage of its own recent modeled maximum, a lighter band shows the estimated range, short ticks mark recorded doses, and circles mark days with symptoms logged.
  • Estimated medication presence
  • Estimated presence range: the range consistent with the doses and times you recorded
  • Recorded doses taken
  • Symptoms you logged

Bar height runs from 0% to 100% of that medication’s own recent modeled maximum, so heights cannot be compared between medications. This is a model built from your entries, not a measurement of drug concentration.

Injection-site history in Zuyu: front and back body maps from June 9 to September 6 with a count badge on each logged site, above a recently-logged list showing upper arm right last logged September 3 and abdomen right last logged August 31.

Injection-site history

Every site you logged, on one map.

Front and back body maps built from your own entries, showing how many times each site appears and when you last logged it.

  • Filter by medication, or see every injectable together
  • Each site carries the date it was last logged
  • The full list travels with your record

Zuyu does not recommend injection sites. Follow the instructions from your clinician or medication guide.

The daily loop

About a minute a day.

A record is only useful if keeping it is easy.

The Zuyu check-in screen asking how was today, with buttons to use voice or use text.

Check in by voice or text

Answer a short check-in, and skip anything that does not apply.

The top of the Zuyu Today screen: Sunday September 6, day 7 of your medication week.

See where the week stands

Which day of your medication week it is, and what is scheduled today.

Today’s medications in Zuyu, listing a medication with its form and schedule and whether a dose has been logged.

Log a dose in two taps

Taken or not taken, with a note for your own record.

Voice check-in is part of Plus. Essential includes a 7-day trial, and typing a check-in is always included.

Plans

Choose the plan that fits you.

Start free. Plus adds the complete report, export and sharing, and ongoing voice check-ins.

Essential

Free

No account, no card, nothing to cancel.

  • ✓Private by design, on device
  • ✓No account needed
  • ✓Unlimited check-ins by typing
  • ✓A 7-day trial of voice check-ins
  • ✓Unlimited history
  • ✓Medications, doses, injection sites, and supply
  • ✓Backup and restore
  • ✓Full raw data export
  • ✓An outline of what your clinician report contains

Plus

$9.99 / month

or $59.99 / year

Everything in Essential, plus:

  • ✓The complete clinician report: 7-day, 30-day, and since your last visit
  • ✓PDF export, print, and share
  • ✓Your saved report archive
  • ✓Ongoing voice check-ins after your trial
  • ✓App lock and advanced privacy controls

Subscriptions are billed by the App Store or Google Play and can be managed or cancelled in your store account. Your own records are always yours: you can read them on every screen and export them in full on any plan.

Still deciding? See how Zuyu compares with other GLP 1 apps, including where they do more than we do.

Start with Essential. It’s free.

No account. Nothing to cancel.

Launching soon

  • Download on the App Store
  • Get it on Google Play

Essential is free. United States. Adults 18 and over.

Zuyu is an organizational and appointment-preparation tool. It is not a medical device. It does not diagnose, treat, cure, or prevent any medical condition, it does not prescribe or recommend dose changes, and it does not replace professional judgment or medical advice. Zuyu is intended for adults 18 years of age or older and is offered in the United States.

Download Zuyu, free