Peptide Tracker vs ShotLog
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Peptide Tracker
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PepAi is the peptide tracker for your whole protocol. Log BPC-157, TB-500, GHK-Cu, semaglutide, tirzepatide and more in seconds, see what is due today, and know when a vial is running low. Built in: a reference library where every fact links to its source on PubMed, DailyMed, MedlinePlus or the FDA. NEVER MISS A DOSE See your next dose at a glance. Get a reminder when it is time, then log, snooze or skip in one tap and keep your streak going. YOUR PROTOCOLS, ORGANIZED Run several protocols at once, each with its own schedule. Track peptides, medications and supplements side by side. Add any compound you need, including one that is not already in the library. VIALS AND INVENTORY Keep track of what you have on hand. PepAi shows what is running low so you can reorder before you run out. EVERY FACT CITED Browse educational reference pages for common compounds. Each one cites its sources, with links to peer reviewed research on PubMed, FDA approved labelling on DailyMed, patient information from MedlinePlus and guidance from the U.S. Food and Drug Administration. The full reference list is always available under Profile, Medical sources. SEE WHAT IS CHANGING Log evening check-ins, weight and hydration. Follow energy, mood, sleep and other outcomes over time, and see them next to your doses. INSIGHTS YOU CAN USE Weekly summaries, goal progress and shareable milestones help you stay consistent without piecing it together from scattered notes. PRIVATE BY DESIGN Your logs are yours. PepAi does not track you across other apps and websites. Sign in with Apple, Google or email, export your records when you need them, and delete your data at any time from Profile. IMPORTANT PepAi is a personal tracking and educational tool. It does not provide medical advice, diagnose conditions, or recommend compounds or dosages. Educational content is summarized from the published sources cited in the app and is not a substitute for care from a licensed healthcare provider. Always follow your prescriber's instructions. SUBSCRIPTION - PEP AI PREMIUM Pep AI Premium unlocks the full app. Two auto-renewable plans are available: โข Pep AI Premium Yearly โ 12 months โ $49.00 per year (approx. $4.08 per month), including a 3-day free trial โข Pep AI Premium Monthly โ 1 month โ $9.99 per month, no free trial Prices are in U.S. dollars and may vary by region; your local price is always shown in the app before you purchase. Payment is charged to your Apple ID account at confirmation of purchase. Your subscription renews automatically for the same period and price unless it is cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. Any unused portion of a free trial is forfeited when a subscription is purchased. You can manage or cancel your subscription in your Apple ID account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/appstore/dev/stdeula/ Privacy Policy: https://codanix.com/pepai/privacy-policy Terms of Service: https://codanix.com/pepai/terms/
ShotLog
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The calm way to keep your injections on schedule. Log a shot in two taps, rotate sites without guessing and follow your dose steps, all in one private app. No account, no servers: everything you enter stays on your iPhone. WHO IT'S FOR ShotLog is for anyone who self-injects on a regular schedule prescribed by a doctor: weekly GLP-1 pens, testosterone, biologics, fertility protocols, vitamin shots and more. You enter the medication, dose and rhythm. ShotLog keeps track. ONE SCREEN, ONE ANSWER Open the app and see what matters: when the next shot is due, where the last one went and your current dose. No spreadsheets, no sticky notes, no "was it Wednesday or Thursday?" LOG IN TWO TAPS Date, dose and site are already filled in. Tap and you're done. Forgot to log? Add an earlier date anytime. ROTATE SITES WITHOUT GUESSING A body map shows how long each site has rested, from abdomen quadrants to thighs and arms. ShotLog suggests the site that has rested longest, so you don't have to remember. FOLLOW YOUR DOSE STEPS If your prescription raises the dose over time, enter each step and its number of weeks. The current step and dose update by themselves as the weeks go by. YOUR HISTORY AT A GLANCE A monthly calendar marks every shot as on plan, shifted or skipped. Tap a day to see the details. REMINDERS THAT DON'T NAG A heads-up the day before, a reminder on the day and a gentle repeat if you haven't logged. Missed a dose or paused your course? ShotLog adjusts without judgment. What to do next is a conversation for you and your doctor. PRIVATE BY DESIGN โข No account, no sign-up, no servers โข Your data stays on your iPhone. We never see it โข No ads, no tracking, no analytics on your health data โข Face ID lock, CSV export and delete-all in one tap FREE AND PRO Free forever: your course, two-tap logging, history, reminders, Face ID lock and CSV export. ShotLog Pro adds the site rotation map with next-site suggestion, the dose ladder by weeks and a reminder the day before your dose step changes. IMPORTANT ShotLog is a logbook, not medical advice and not a medical device. It does not recommend, calculate or change doses and does not interpret symptoms. Everything in the app is entered by you, as prescribed. Always follow your doctor's instructions and talk to your healthcare provider before changing your treatment. You can also read: Privacy Policy: https://sites.google.com/view/castles-trip-privacy-policy/shotlog Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
Peptide Tracker and ShotLog are too close to call on the numbers: across 6 compared parameters โ price, update cadence, ads and in-app purchases among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Peptide Tracker sells 2 in-app purchases, starting at $9.99 per month and ShotLog sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 10 days. Both last shipped on November 13, 2026.
| Parameter | Peptide Tracker | ShotLog |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 18.6 | 18.0 โ better |
| Further details โ not scored | ||
| Size | 41 MB | 4 MB |
| Age rating | 17+ | 12+ |
| Developer | Codanix LLC | Stanislav Duplinskiy |
In-app purchases
Peptide Tracker
- Premium Monthly: Full Library$9.991 Month
- Premium: Protocols & Insights3 Days trial$49.991 Year
ShotLog
- ShotLog Pro โ 1 Week3 Days trial$1.997 Days
- ShotLog Pro โ 3 Months7 Days trial$16.993 Months
- ShotLog Pro โ 1 Year7 Days trial$44.991 Year









