Comparison

Peptide Tracker & Calculator vs Shotday

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Peptide Tracker & Calculator

This app helps you meticulously track and calculate peptide dosages, inventory, and injection sites. It provides smart alerts for low stock and detailed logs of your usage history for research, fitness, or therapeutic protocols. Your data is stored securely and privately on your device.

Highlights
  • Comprehensive peptide inventory management
  • Precise dosing log and calculation support
  • Intelligent injection site rotation tracking
  • Smart low stock alerts
  • Detailed dose history review
  • Secure local data storage
Features
Read full description

The Ultimate Peptide Tracker & Calculator for All Your Protocols Take control of your peptide journey! Whether you're deep into peptide research, optimizing for fitness with performance peptides, aiding recovery with compounds like BPC-157 or TB-500, exploring biohacking protocols, or managing GLP-1 agonists like Semaglutide and Tirzepatide, Peptide Tracker & Calculator is your essential management tool. Stop relying on messy notes or complex spreadsheets – track everything accurately in one secure, easy-to-use app. Comprehensive Peptide Inventory Management: Log Any Peptide: Maintain a detailed database of all your compounds – from research peptides and GHRP/GHRH analogs (like CJC-1295 or Ipamorelin) to healing peptides and GLP-1s. Track Critical Vial Data: Record concentration (mg/mcg), units, vial size (ml), diluent (e.g., BAC water), date, storage conditions (fridge/freezer), source, batch number, and expiration dates. Essential for consistency and safety across all peptide protocols. Smart Low Stock Alerts: Visual indicators warn you when any peptide vial is running low, helping you reorder before interrupting your research, peptide cycle, or therapy. Precise Dose Logging: Accurate Dose Recording: Log every administration with meticulous detail: specific peptide used, dose amount (mg/mcg/IU), date/time, method/site (subcutaneous, intramuscular), and personal notes for context (e.g., "pre-workout," "post-injury"). Complete Dose History: Review your entire usage history for any tracked peptide. Filter logs by compound (e.g., view all BPC-157 doses) to analyze patterns, effectiveness, and adherence. Perfect for managing complex peptide stacks or cycles. Intelligent Injection Site Rotation: Smart Site Tracking: Maintain a personalized map of injection sites with customizable rest periods for optimal absorption and tissue recovery. Rotation Recommendations: Receive intelligent suggestions for your next injection site based on usage history and proper rotation patterns. Site Status Monitoring: Color-coded indicators show which sites are ready for use, need rest, or are inactive, helping prevent site overuse and associated complications. Find Information Instantly: Quick Search: Locate specific peptides, inventory details, or past dose logs in seconds. Privacy You Can Trust: Your peptide usage and research data are confidential. All information entered into Peptide Tracker & Calculator is stored securely and locally on your device only. We never access, collect, or store your personal data. Master Your Peptide Regimen: Peptide Tracker & Calculator is the indispensable tool for researchers, athletes, biohackers, and anyone utilizing peptides for performance, recovery, longevity, or wellness. Download today and bring precision and organization to your peptide management! Subscription Information: • Monthly and annual subscription options available • Annual subscription includes a 3-day free trial • Payment will be charged to your Apple ID account at confirmation of purchase • Subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period • Account will be charged for renewal within 24 hours prior to the end of the current period • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription Privacy Policy: https://glp1.app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Shotday

Features
Read full description

Shotday is a private, on-device tracker for people on GLP-1 medications like Ozempic, Wegovy, Mounjaro, and Zepbound. It's designed for the five things that actually matter on a weekly shot routine — and nothing else. ▸ ROTATE INJECTION SITES Tap a stylized body diagram to log where you injected. Shotday automatically suggests next week's site so you don't bruise the same spot twice. The "last week" zone is greyed out. The recommended next zone pulses gently. That's it — no scrolling, no menus. ▸ A 20-SECOND SIDE-EFFECT LOG On the day after your shot, the home screen replaces the countdown with a one-tap "How are you feeling?" card. Rate nausea, fatigue, constipation, and appetite suppression on a clean 1-5 scale. Tap chips for headaches, heartburn, sulfur burps, dizziness. Add anything else as a custom symptom. Done. ▸ PROTEIN-FIRST FOOD LOG GLP-1 drugs work by killing your appetite. That's the problem. If you don't eat enough protein you lose muscle along with the fat. Shotday computes a daily target from your weight (0.7g per pound of bodyweight) and gives you tiles for the protein staples — Greek yogurt, eggs, chicken, cottage cheese, whey, salmon, tofu, beef. One tap to log. No calories, no macros, no guilt. ▸ DOSE ESCALATION LADDER Standard escalation for semaglutide and tirzepatide is built in. The ladder shows where you are, when you'll be eligible to bump (4 weeks per rung, the standard practice), and what the next dose looks like. Bump up, step down, or enter a custom compounded dose — all logged with a timestamp. ▸ REFILL ALARM Tell Shotday how many doses your pen holds (4 for Ozempic/Wegovy, 1 for Mounjaro/Zepbound vials) and when you last filled. It counts down each time you log a shot and warns you 7 days before you'd run out — early enough to actually call the pharmacy. ———————— ▸ PRIVATE BY DESIGN Shotday has no account system. No email. No cloud. Your data is written to your device's encrypted local storage and never leaves — there is no server to send it to. We don't run analytics. We don't track you. We don't have ads. If you delete the app, your data is gone with it. That's the whole story. ▸ NOTIFICATIONS Optional local reminders for shot day, the post-shot side-effect prompt, and refill alerts. Quiet hours are honored. You can deny notification permission and the app still works — the home screen always shows what's coming up. ▸ DARK MODE Full dark and light themes that follow iOS system settings, or pick one manually. ———————— ▸ HONEST DISCLAIMER Shotday is a tracking tool, not medical advice. It's built from publicly available manufacturer guidance and standard nutrition science. Always consult your prescribing physician before starting, stopping, or changing any medication. In an emergency, call your local emergency number. ▸ SHOTDAY PRO A 14-day free trial unlocks everything. After that, Pro is $4.99/month or $29.99/year (auto-renewable subscription via your Apple ID). Cancel any time in your Apple ID Account Settings. Your data stays on your device whether or not you subscribe. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Peptide Tracker & Calculator4 screens
Shotday4 screens

Verdict

The call

Peptide Tracker & Calculator and Shotday are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Peptide Tracker & Calculator sells 4 in-app purchases, starting at $3.99 per month and Shotday sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Peptide Tracker & Calculator versus Shotday: the parameters behind the verdict, then further details
ParameterPeptide Tracker & CalculatorShotday
PriceFreeFree
Rating4.8 (582 ratings) — better—
Positive reviews70.3% of reviews—
Number of ratings582 — better—
Update frequencyEvery 2 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.1 — better
Further details — not scored
Size58 MB36 MB
Age rating12+17+
DeveloperDavid DzeveckijSENTHIL KUMAR KANNAN

In-app purchases

4 purchases

Peptide Tracker & Calculator

Subscriptions4
  • Full App Access (Monthly)$3.991 Month
  • Full App Access (Monthly)$4.991 Month
  • Full App Access (Yearly)3 Days trial$19.991 Year
Show 1 more
  • Full App Access (Yearly)3 Days trial$24.991 Year
2 purchases

Shotday

Subscriptions2
  • Shotday Pro14 Days trial$4.991 Month
  • Shotday Pro14 Days trial$29.991 Year

Questions

Is Peptide Tracker & Calculator free?
Peptide Tracker & Calculator is free to download, with in-app purchases available.
Is Shotday free?
Shotday is free to download, with in-app purchases available.
Do Peptide Tracker & Calculator or Shotday have ads?
Neither Peptide Tracker & Calculator nor Shotday shows ads.

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