GLP-1 Tracker: Spreadsheet vs App vs Notebook
*Ozempic, Wegovy, Mounjaro, and Zepbound are mentioned by name throughout this post. We are not affiliated with, endorsed by, or sponsored by any manufacturer. This is an organisational guide, not medical advice. All treatment and dosing decisions should be made with your prescribing healthcare provider.*
You have already decided to start tracking your GLP-1 treatment — weight, dose, side effects, protein, the whole picture. That is the important step, and you took it.
Now comes the second question — the one most guides skip over: what should you actually use to track it?
A notebook? A dedicated GLP-1 app on your phone? A spreadsheet? Each option has a community of loyal users, and each has genuine drawbacks that those users have quietly learned to work around. This post lays out the honest case for all three so you can pick the one that will actually stick through months of injections, dose titrations, and prescriber appointments — not just the one that sounds most appealing.
Before diving in, two companion posts cover what to track and how to log side effects week to week: What to Track on GLP-1 Medications (The Full Picture) covers every category worth logging and why it matters, and GLP-1 Side Effects: A Simple Log to Bring to Your Doctor covers a focused weekly log for prescriber appointments. This post is specifically about the tool question.
Option 1: Paper Notebook or Printable
Who it suits: Anyone who wants zero technology friction, prefers analogue habits, or is just starting treatment and wants the lightest possible commitment.
The honest case for it
A notebook has no login, no subscription, no learning curve, and no "the app changed its interface" problem. You can write in the margin, jot a note about what you ate before an injection, or flag a rough week with a sticky tab. For anyone who already keeps a journal or planner, adding a weekly GLP-1 section is a natural extension of an existing habit. The friction is essentially zero.
Printable checklists — a free version of which is linked at the end of this post — give you a consistent structure without the blank-page problem. You print a new sheet each week and rate what you noticed rather than deciding what to write from scratch.
The real drawbacks
Paper cannot show you a trend. GLP-1 weight loss is famously non-linear — two or three weeks of no movement followed by a drop — and a notebook holds all that weekly weight data, but seeing the actual trajectory requires flipping back and constructing the picture yourself. Most people do not do this, which means a genuine downward trend can feel like a stall, and a real stall can go unnoticed for weeks.
Paper is also physically vulnerable, and it makes connecting a dose change to a side-effect spike a manual exercise in cross-referencing dates. When you arrive at a prescriber appointment, you either bring the whole notebook or try to summarise months of injections, doses, and side effects from memory in the waiting room — which is exactly the situation tracking is supposed to solve.
Option 2: A Dedicated GLP-1 App
Who it suits: Anyone who wants reminders and a mobile-first experience; those who are comfortable with subscription software and do not need to export or share detailed data outside the app.
The honest case for it
Dedicated GLP-1 tracking apps — Shotsy, Glapp, and others — are designed specifically for this use case, which means they arrive with structure already built in. Fields for injection day, dose, site rotation, weight, and common side effects are already named and organised. Push notification reminders for your next injection are a genuine advantage for anyone whose weekly schedule keeps slipping. The experience is typically polished and the learning curve is short.
The real drawbacks
Most capable apps run on a monthly or annual subscription. Over months of treatment, and especially if you stay on a maintenance dose long-term, that adds up.
The more significant issue is data portability. Your logs live in the app company's cloud. If the app changes its business model, discontinues a feature, or shuts down, your treatment history may be difficult or impossible to export in a usable format. The fields are also fixed: if your prescriber wants you to track something specific — protein intake against a calculated target, a particular timing pattern around injection day — you are working around a form designed for a generic user rather than your situation.
Generating a doctor-ready summary — a clear, printable document covering the past six to eight weeks of weight, dose, and side effects — is often awkward in apps built for personal logging rather than clinical communication. You may end up screenshotting individual screens or typing a summary by hand anyway.
Option 3: A Spreadsheet (Google Sheets or Excel)
Who it suits: Anyone who wants trend visibility, doctor-ready outputs, and data that stays theirs permanently — and who is willing to either set one up or use a pre-built template.
The honest case for it
A well-designed spreadsheet solves the two core problems that paper and apps each fail at differently. Unlike paper, it can calculate, chart, and summarise automatically — a weight trend that smooths out the noise of a non-linear loss curve, a side-effect severity pattern across an injection cycle, a one-page summary that pulls your most recent entries together. Unlike an app, the file lives in your Google Drive or on your computer. You own it outright. There is no subscription, no cloud company's decisions about your data, and no "this feature moved behind a paywall" surprise.
Columns are fully flexible. If your prescriber asks you to start tracking something new — a protein target, a specific side effect, a timing pattern — you add a column. The sheet does not push back.
For sharing with a provider, a spreadsheet exports cleanly to PDF. A well-built template can auto-generate a single-page summary of recent logs that you can print or show on your phone — the kind of document a prescriber can actually read in a 15-minute appointment rather than scroll through weeks of your notes with you.
The real drawback
An empty spreadsheet is just a grid. Building the right structure — the right side-effect categories, a weight-trend chart that auto-updates, a protein and hydration calculator, a summary page that pulls current data — takes meaningful time and some spreadsheet competence. This is the one genuine barrier, and it is also the problem that a pre-built tracker template is specifically designed to remove.
What Actually Matters for GLP-1 Treatment Specifically
The tracking tool question is not just about personal preference. GLP-1 treatment has specific tracking requirements that matter when choosing a format.
Weight trends over weeks, not daily noise. As covered in our what-to-track guide, GLP-1 weight loss typically shows up as stalls followed by drops, and daily weighing mostly captures water retention rather than fat loss. A weekly weigh-in charted over eight or more weeks makes the real trajectory visible in a way that a single number never can. Paper cannot chart this automatically. Apps can show it, but the export may not be clean. A spreadsheet with a chart does it without extra work.
Dose and titration events lined up against side effects and weight. Almost every meaningful shift in side-effect severity or a weight plateau traces back to a nearby dose event — a titration step, a hold, a missed week. Seeing your dose history on the same view as your side-effect ratings and weight is what makes that connection visible, rather than something you have to reconstruct from memory at your next appointment.
Protein and hydration against a real target, not a guess. GLP-1 medications suppress appetite significantly, and protein is the nutrient most at risk of being cut along with everything else. A tracker that calculates a protein and hydration target from your own weight — rather than asking you to remember a generic number — makes it far more likely you will actually notice when you are falling short.
A doctor-ready summary you can actually hand over. As covered in the side-effects log guide, the most useful thing you can bring to a prescriber appointment is a one-page summary: your weight trend, your worst side effect and when it peaked, and whether you're consistently hitting your protein and hydration targets. Creating that from a paper notebook is a manual task. Creating it from a GLP-1 app depends entirely on that app's export features. A spreadsheet with a summary tab that auto-fills from your log generates it in seconds.
The Honest Recommendation
There is no single right answer that works for everyone. If you know yourself to be an analogue person who will consistently write in a notebook and can summarise it for your prescriber verbally, a notebook with a printable checklist structure is better than a digital tool you will not open. If you genuinely benefit from injection reminders and a mobile interface is the only way you will maintain the habit, a paid GLP-1 app may be worth the subscription.
For most people who want to see the real weight trend through the noise, hit protein and hydration targets without guessing, and produce something useful for a prescriber — without a subscription — a well-built spreadsheet is the strongest option. The barrier is setup time, and a pre-built template removes that barrier entirely.
The GLP-1 Weight-Loss Journey Tracker ($15) is a Google Sheets and Excel file that includes a daily log for 18 side effects rated 0–5, auto-calculating protein and hydration targets based on your own weight, weight and measurement charts, an optional injection-site log, and an auto-populating Doctor Visit Summary that pulls your most recent weeks of entries into a one-page document. No app, no subscription. The file is yours.
Where to Start
If you want to try structured tracking before committing to anything, the free GLP-1 tracking checklist is the right first step:
Free GLP-1 tracking checklist — printable, no sign-up
One page, covers weight, dose, side effects, and injection day, with space for notes. Download it, print it, use it for a few weeks. It works as a standalone tool and as a preview of what the full tracker does in more depth.
When you are ready for the protein and hydration calculator, the side-effect heatmap, and the auto-generating doctor summary:
GLP-1 Weight-Loss Journey Tracker — Everyday Trackers ($15)
Start with the checklist. Add the full tracker when the habit is in place and you want more from it.
*This post is an organisational guide, not medical advice. Ozempic, Wegovy, Mounjaro, and Zepbound are prescription medications. All dosing and treatment decisions should be made with your prescribing healthcare provider. We are not affiliated with or sponsored by any pharmaceutical manufacturer.*