Comparison

Bio Log vs PepTrack

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

Head to head
About

Bio Log

This app helps you meticulously track peptide doses, vial details, and personal notes in a centralized journal. It offers features for logging entries, managing injection sites, and reviewing historical data. Optional AI assistance can help organize notes and generate summaries.

Highlights
  • Dose and vial tracking
  • Injection site mapping
  • Journaling with notes
  • History search and filtering
  • Vial inventory management
  • AI-powered summaries
  • Data export
Read full description

Keep your peptide records clear, organized, and easy to review. Bio Log brings your schedules, dose entries, vial details, and personal notes into one focused journal. SEE YOUR DAY View scheduled entries and what you’ve already recorded. Keep reminders connected to the profiles you create. LOG WHAT HAPPENED Record an entry as taken or skipped. Add the amount, time, injection site, and notes you want to keep. Review your entry before saving. Choose a recorded injection site on the front-and-back body map and see which sites appear in your recent history. FIND YOUR HISTORY Search your journal by peptide or note. Filter taken and skipped entries, review earlier records, and make corrections when needed. Remove profiles from your active library without losing their history. Restore them from Archived whenever you need them. KEEP VIAL DETAILS TOGETHER Save vial amounts, lot information, and storage notes. See remaining inventory estimates based on your saved records. ADD CONTEXT Keep symptoms, lab results, and progress photos alongside your tracking. Review summaries of your own entries. BIO LOG AI Ask questions about your journal, organize notes, and review optional AI summaries in a clean conversation view. Draft logs remain yours to review and confirm before saving. YOUR RECORDS, YOUR CONTROL Journal records are stored on your device. Export your tracking records when you need them. Optional AI features use an online service with your permission. MEMBERSHIP Download Bio Log to explore the demo. Personal tracking and the full feature set require an auto-renewing monthly Bio Log Membership. Payment is charged to your Apple Account. Your subscription renews automatically unless canceled at least 24 hours before the current period ends. Manage or cancel your subscription in App Store account settings. Bio Log is for personal tracking and organization. It does not provide medical advice, diagnosis, treatment, dosing instructions, peptide recommendations, or sourcing advice. Consult a qualified healthcare professional before making medical decisions. AI-generated summaries may be incomplete or inaccurate. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://biolog-ai-backend.vercel.app/api/privacy

About

PepTrack

Features
Read full description

PepTrack helps you organize personal peptide-related notes and explore educational reference content in one private, easy-to-use app. PERSONAL RECORDS Create and manage records using information you already have. Keep names, notes, dates, and inventory details organized in one place. ROUTINE ORGANIZATION Organize routines that you enter manually and review your saved activity history. PepTrack does not create routines, recommend amounts, or provide treatment guidance. EDUCATIONAL LIBRARY Browse concise educational reference pages covering research context, available evidence, safety notes, and source links. HISTORY AND INSIGHTS Review your records and activity history to keep your personal information organized over time. PRIVATE BY DESIGN Your records are stored locally on your device. No account is required. PEPTRACK PRO Upgrade to PepTrack Pro for: • Unlimited records • Full activity history • Vial notes • Calendar view • Inventory organization • Additional record-management features IMPORTANT PepTrack is intended only for personal record keeping and educational reference. It is not a medical device and does not provide medical advice, diagnosis, dosage guidance, medication calculations, or treatment recommendations. Always follow guidance from a qualified healthcare professional. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current subscription period. You can manage or cancel subscriptions in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Bio Log4 screens
PepTrack4 screens

Verdict

The call

Bio Log and PepTrack are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Bio Log sells 1 in-app purchase, starting at $3.99 per month and PepTrack sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
Bio Log versus PepTrack: the parameters behind the verdict, then further details
ParameterBio LogPepTrack
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better17.6
Further details — not scored
Size5 MB2 MB
Age rating17+17+
Developeralexander rieger星燃 余

In-app purchases

1 purchases

Bio Log

Subscriptions1
  • Bio Log Membership$3.991 Month
3 purchases

PepTrack

Subscriptions3
  • Peptide Log Pro (Weekly)$2.997 Days
  • Peptide Log Pro (Monthly)$7.991 Month
  • Peptide Log Pro (Yearly)3 Days trial$49.991 Year

Questions

Is Bio Log free?
Bio Log is free to download, with in-app purchases available.
Is PepTrack free?
PepTrack is free to download, with in-app purchases available.
Do Bio Log or PepTrack have ads?
Neither Bio Log nor PepTrack shows ads.
Which is updated more often, Bio Log or PepTrack?
Bio Log ships an update every 2 weeks, and PepTrack every 2 weeks. Most recently, Bio Log was updated on November 10, 2026 and PepTrack on October 31, 2026.

Other comparisons