If you're on Ozempic, Wegovy, Mounjaro, or Zepbound and you've searched the App Store for "GLP-1 tracker," you've almost certainly found Shotsy. It's the category leader — and for good reason. The injection tracking is smooth, the weight graphs are satisfying, and the dose reminders actually work.
I've been using Shotsy since early 2025. I recommend it to patients who need a clean, no-fuss way to track their shots and see their weight trend over time. It does that job well.
But after 14 months of use — and after reviewing the body composition data of over 200 GLP-1 patients in my practice — I have to be honest about something Shotsy can't show you. Something that may be the single most important metric of your entire GLP-1 journey.
Shotsy tells you what you lost. It cannot tell you what kind of weight you lost.
And that distinction — fat versus muscle — is increasingly the difference between people who finish GLP-1 treatment looking and feeling great, and people who end up skinny-fat, weak, and at higher metabolic risk than when they started.
What Shotsy Does Well
Credit where it's due. Shotsy is a polished, well-designed medication tracker, and it dominates the category for legitimate reasons:
Injection Tracking and Reminders
Shotsy's core feature is its shot-day workflow. You log your injection — date, time, dose, injection site — and the app builds a clean visual history. The reminder system is reliable. If you've ever forgotten whether you took your shot this week (we've all been there at 11 PM on a Thursday), this feature alone justifies the download.
Weight Trend Graphs
The weight graphing is genuinely excellent. Shotsy plots your weigh-ins against your injection timeline, so you can see how your weight responds to dose changes. The graphs are visually appealing and easy to screenshot and share — which is part of why you see Shotsy graphs all over Reddit and TikTok. The social shareability is clearly part of the product strategy, and it works.
Dose Escalation History
As you titrate from 0.25 mg to 0.5 mg to 1 mg and beyond (for semaglutide) or through the tirzepatide dose ladder, Shotsy maintains a clear timeline. This is useful for conversations with your prescriber and for understanding your own response pattern.
Side Effect Logging
You can log side effects — nausea, constipation, fatigue, injection site reactions — alongside your dose history. This creates a useful record, especially during the early titration phase when GI side effects are most common (affecting 40–50% of users according to clinical trial data from Novo Nordisk and Eli Lilly).
Who Shotsy Is Built For
Shotsy is an excellent fit if you are:
- New to GLP-1 medications and want a simple way to remember your shot day, track your dose, and see your weight go down
- Not particularly concerned about body composition — you care about the number on the scale, and that's your primary metric
- Looking for a clean, minimal app that does one thing and does it well without overwhelming you with features
- On iOS — the iPhone experience is noticeably better than Android
For this audience, Shotsy is a solid 8.5/10 app. Full stop.
But here's where the review gets more complicated — because for a growing number of GLP-1 users, the question isn't just "how much weight did I lose?" The question is: "What kind of weight did I lose?"
The Body Composition Blind Spot
This is the number that changes the entire conversation about GLP-1 weight loss. And it's the number that Shotsy — by design — cannot show you.
When you step on a scale after 6 months of semaglutide and it reads 30 pounds lighter, the natural reaction is celebration. The graph in Shotsy looks beautiful. The trend line is heading in the right direction.
But what if 10 of those 30 pounds were muscle?
🔬 The Science: Why Muscle Loss on GLP-1 Drugs Matters
Research consistently shows that 15–40% of weight lost during caloric restriction can be lean body mass (which includes skeletal muscle, organ tissue, and bone mineral). The exact ratio depends on three critical factors that Shotsy does not track:
1. Protein intake. According to nutritional researcher Lyle McDonald, GLP-1 users who weight train need 0.9–1.5 grams of protein per pound of lean body mass daily, depending on their body fat category. Most GLP-1 users dramatically under-consume protein because appetite suppression makes eating difficult — some dropping to 500–700 calories per day.
2. Resistance training. Weight training 2–3 times per week is the primary stimulus that signals the body to preserve muscle during a caloric deficit. Without it, the body has no reason not to cannibalize muscle tissue for energy.
3. Starting body fat percentage. Leaner individuals lose proportionally more muscle during weight loss. Someone at 22% body fat loses muscle faster than someone at 38% body fat, all else being equal — a principle known as the P-ratio (calorie partitioning ratio).
Shotsy tracks none of these three factors. It cannot tell you how much protein you're eating. It cannot tell you whether you're training. And it certainly cannot estimate your body fat percentage or lean body mass.
The result: a user can watch their Shotsy weight graph trend beautifully downward for six months while silently losing muscle at an alarming rate — and the app gives them no indication that anything is wrong.
"I've been tracking my shots for 6 months but I have no idea if I'm losing muscle or fat. I just know the number is going down." — r/Ozempic user, February 2026
"I lost 18 pounds but ten of that was muscle. My DEXA scan was devastating." — r/semaglutide user, January 2026
What's Missing: Feature by Feature
Beyond the body composition blind spot, there are several significant gaps in Shotsy's feature set that become more apparent the longer you use the app:
No Food Database or Nutrition Tracking
Shotsy has zero nutrition features. No food database, no meal logging, no calorie tracking, no macronutrient breakdown. For an app designed for people on weight loss medication, this is a striking omission. Protein intake is the single most important dietary variable for preserving muscle during GLP-1 treatment. According to McDonald's GLP-1 Solution protocol, the minimum protein requirements range from 0.7 g/lb of lean body mass (for sedentary obese users) up to 1.5 g/lb of lean body mass (for lean users who weight train). Without any way to track food intake, users are flying blind on the most critical nutritional variable.
No Body Composition Tracking
The app tracks total weight only. There is no body fat percentage input, no lean mass estimate, no waist measurement log, and no integration with body composition devices (smart scales, DEXA results, etc.). Given that the entire clinical concern around GLP-1 weight loss is the composition of that weight loss, this gap is increasingly difficult to justify.
No AI Coaching or Personalized Guidance
Shotsy shows you data but doesn't interpret it. There's no guidance on what to eat, how much protein you need, whether your rate of loss is too aggressive, or what you should do when you hit a plateau. For users paying a monthly subscription, the absence of any intelligent guidance layer is a missed opportunity.
Apple Health Sync Behind the Paywall
Syncing with Apple Health — a basic feature that most health apps offer for free — requires a Shotsy subscription. This feels like an artificial restriction designed to push free users toward the paid tier rather than a genuine feature limitation.
Weaker Android Experience
Multiple users report that the Android version of Shotsy lacks feature parity with iOS, including slower updates, more bugs, and missing visual polish. For an app in a category where roughly 45% of the US smartphone market uses Android (Statcounter, 2025), this is a significant limitation.
No Cloud Backup
If you lose your phone or switch devices, your Shotsy data may not transfer. There is no cloud backup or account-based data storage. For an app tracking medical history over months or years, data portability is a genuine concern — not a nice-to-have.
Privacy Concerns
Following their 2025 funding round, Shotsy's data practices have come under scrutiny. Health data — especially medication data — is among the most sensitive personal information a user can generate. Users have raised legitimate questions about how Shotsy stores, shares, and monetizes this data.
Shotsy Pros
- Best-in-class injection tracking and reminders
- Beautiful, shareable weight trend graphs
- Clean, intuitive interface (especially iOS)
- Solid dose escalation timeline
- Side effect logging alongside dose history
- Strong community presence (Reddit, TikTok)
Shotsy Cons
- Zero body composition tracking
- No food database or protein tracking
- No muscle loss monitoring or alerts
- No AI coaching or personalized guidance
- Apple Health sync paywalled
- No cloud backup — data loss risk
- Android experience trails iOS significantly
- Pricing has increased since 2024
- Post-funding privacy concerns unresolved
Pricing: What You Pay and What You Get
| Plan | Price | What's Included |
|---|---|---|
| Free | $0 | Basic shot tracking, limited weight log, no Apple Health sync |
| Monthly | $9.99/mo | Full weight graphs, dose history, side effect logging, Apple Health sync |
| Annual | $59.99/yr (~$5/mo) | Everything in Monthly, discounted rate |
For a pure medication tracker, the pricing is reasonable — roughly in line with other health tracking subscriptions. The question is whether you need more than medication tracking. If you do, you'll need to add separate apps for nutrition (MyFitnessPal, Cronometer), exercise programming, and body composition — which adds cost, complexity, and the friction of managing data across multiple apps that don't talk to each other.
The Real Question: Is Tracking Shots Enough?
This is where the Shotsy review becomes less about Shotsy and more about what GLP-1 users actually need.
In 2024, when the GLP-1 app category was brand new, medication tracking was the obvious first feature. "Did I take my shot?" is a concrete, binary question. An app that answers it reliably is genuinely useful.
But in 2026, the conversation has shifted. The clinical community, the user community, and the research literature have all converged on the same conclusion: the quality of weight loss matters as much as the quantity.
What Does "Quality of Weight Loss" Mean?
Quality of weight loss refers to the ratio of fat to lean mass in the weight you lose. High-quality weight loss means you're losing primarily fat while preserving muscle. Low-quality weight loss means you're losing significant amounts of muscle along with fat — leaving you lighter on the scale but metabolically worse off, weaker, and at higher risk for weight regain. Research from Lyle McDonald's GLP-1 protocol shows that three factors determine weight loss quality: adequate protein intake (0.7–1.5 g/lb lean body mass), resistance training (2–3 sessions per week minimum), and appropriate deficit sizing (25–30% below maintenance for most users).
A 2026 GLP-1 app that only tracks injection dates and total weight is like a financial app that only tracks your account balance without showing you what you're spending money on. The number is real, but it tells you almost nothing about whether you're heading toward a good outcome or a bad one.
The users who end up with "Ozempic face" — that gaunt, hollowed-out look that has its own TikTok trend — aren't just losing weight too fast. They're losing the wrong kind of weight. They're losing the muscle and connective tissue that gives the face its structure. And no amount of shot tracking can prevent that.
"I feel deflated. My face looks hollowed out and tired. I look worse naked than before I started." — GLP-1 user, Reddit r/Ozempic
What a Complete GLP-1 App Would Look Like
Based on the current research and the needs I see daily in clinical practice, a truly complete GLP-1 companion app would combine:
- Medication tracking — injection dates, doses, side effects (Shotsy does this well)
- Body composition monitoring — estimated body fat percentage, lean mass tracking, fat-to-muscle loss ratio
- Protein target personalization — based on your lean body mass, body fat category, and activity level
- Food logging with macros — specifically calibrated for GLP-1 users who struggle to eat enough
- Resistance training guidance — the minimum effective dose of training to preserve muscle
- Intelligent coaching — guidance that adapts as your weight changes, your deficit shifts, and your needs evolve
Shotsy delivers #1 very well. It delivers none of #2 through #6.
The Alternative: LeanShield
LeanShield is a newer GLP-1 companion app built specifically around the body composition problem. Its core metric — the LeanShield Score — estimates whether you're losing primarily fat or muscle, based on your measurements, protein intake, training status, and rate of loss.
The positioning is clear: Shotsy tells you what you lost. LeanShield tells you what kind of weight you lost.
Where Shotsy is a medication tracker that shows weight, LeanShield is a body composition guardian that uses your GLP-1 protocol as context. It includes personalized protein targets (calculated from your lean body mass using Lyle McDonald's category-based system), resistance training minimums, and AI-driven coaching that adapts as your body changes.
We'll publish a full comparison in our LeanShield vs Shotsy article. But if the body composition gap concerns you — and the research suggests it should — LeanShield addresses the exact blind spot that Shotsy leaves open.
Find Out What Kind of Weight You're Losing
Take the 60-second LeanShield assessment and get your personalized body composition score — including your protein target, muscle risk level, and what to do next.
Get Your LeanShield Score →Our Verdict: Shotsy in 2026
Shotsy remains the best pure GLP-1 medication tracker on the market. If your only need is injection reminders, dose logging, and a weight trend graph, it delivers well and the interface is polished.
But calling Shotsy a "GLP-1 companion app" in 2026 is increasingly misleading. It's a shot tracker that shows weight. It doesn't track nutrition, body composition, protein intake, muscle loss, or provide any personalized guidance — and these are now the factors that the research literature identifies as the primary determinants of whether GLP-1 treatment produces a good long-term health outcome or a metabolically fragile one.
For users who are content watching the scale number go down without asking what that number is made of, Shotsy is a fine tool. For users who want to know whether they're losing fat or muscle — and what to do about it — Shotsy is incomplete by design.
Rating: 7.5/10 — Excellent at what it does. But what it doesn't do is increasingly the part that matters most.