Shotsy vs. Dose & Fuel: Which GLP-1 Companion Fits Your Routine?
A head-to-head comparison of two dedicated iOS GLP-1 apps. We compare dose level modeling, protein retention tools, privacy architectures, and user experience.
In plain terms: Shotsy and Dose & Fuel are both built for iPhone users taking GLP-1 medications, but they serve different core priorities. Shotsy focuses on mathematical drug concentration curves and Apple Health syncing. Dose & Fuel focuses on daily protein retention, calm habit building, and 100% on-device encrypted privacy.
When managing a GLP-1 prescription, having a dedicated tracker helps keep your routine organized. Both Shotsy and Dose & Fuel represent a welcome departure from generic, ad-heavy fitness apps.
Below is an objective look at how they differ across four critical areas.
Feature Comparison Matrix
| Core Area | Shotsy | Dose & Fuel |
|---|---|---|
| Primary Focus | Injection modeling & active levels | Daily protein fueling & habits |
| Medication Curve | Pharmacokinetic half-life chart | Factual dose chronology & reminder |
| Nutrition Logging | Basic macro & calorie logging | Protein-first with AI uncertainty ranges |
| Privacy Model | Cloud-based analytics & tracking | 100% On-Device SQLite (Zero Cloud) |
| Account Required | Yes (Optional / Cloud features) | No (Fully local out of the box) |
| Data Export | PDF Summary Reports | Clean versioned JSON & local wipe |
1. Dose Tracking vs. Drug Level Modeling
Shotsy: Pharmacokinetic Half-Life Visuals
Shotsy’s signature feature is its drug level modeling chart. Using clinical half-life data (e.g. ~7 days for semaglutide, ~5 days for tirzepatide), Shotsy estimates the remaining milligram concentration of the drug in your bloodstream throughout the week.
- Why it helps: Some users find it reassuring to understand why appetite suppression feels strongest on days 2–4 after an injection and slightly wanes by day 6.
Dose & Fuel: Factual Record Keeping
Dose & Fuel takes a simpler, factual approach. Rather than simulating biological pharmacokinetics (which vary widely between individuals based on metabolic factors and injection absorption rates), it keeps a clean, factual calendar of your prescribed dose dates, amounts, and sites.
- Why it helps: Keeps your routine calm and actionable without over-analyzing daily mathematical curves.
2. Nutrition & Protein Strategy
Shotsy: Broad Macro Log
Shotsy includes general nutritional logging that integrates with Apple Health. You can view calories, protein, and water consumed over time.
Dose & Fuel: Protein-First & AI Uncertainty
Because protein retention is the primary nutritional priority on GLP-1s, Dose & Fuel puts protein at the center of the UI.
Furthermore, Dose & Fuel features Uncertainty-Aware AI Photo Scanning: when you snap a picture of a meal, it provides both Realistic and Conservative protein brackets, ensuring you never rely on artificial, false precision.
3. Privacy Architecture
Shotsy
Shotsy follows standard modern iOS app architecture with cloud connectivity, utilizing third-party analytics to track engagement and app performance.
Dose & Fuel
Dose & Fuel is architected local-first. All sensitive records—including medication names, injection timestamps, body weight, and personal notes—are stored in an encrypted SQLite database on your device. No third-party ad networks or data brokers can access your records.
The Verdict: Which Should You Choose?
- Choose Shotsy if you love data visualization and want to watch an estimated drug level curve rise and fall across your 7-day injection cycles.
- Choose Dose & Fuel if you want a calm, private tool dedicated to making sure you eat enough protein every day without cloud telemetry or subscription friction.
Lose weight on your GLP-1. Put protein first.
Set your weight goal, hit your protein target with photo meal logging, and keep your prescribed doses and weight trend in one place.
