Comparison

Bio Log vs WE

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 daily views, logging capabilities, and history search, with optional AI assistance for summaries and organization. Records are stored locally for your control.

Highlights
  • Schedule and dose tracking
  • Vial inventory management
  • Injection site mapping
  • Journal search and filtering
  • AI-powered note organization
  • Local data storage
  • 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

WE

Features
Read full description

Your Apple Watch already knows how you are doing. WE-IN turns what it records into one thing you can act on: how long your body takes to settle after you eat. WHAT IT DOES Your Response curve A single line for your day, scored on the watch itself. No phone in your pocket, no waiting on a server, no signal needed. Settle time How many minutes a meal actually took to clear, measured against your own baseline rather than a nutrition table. Weekly Read The pattern across days: your calmest window, your most sensitive one, and what genuinely moved the number this week. History Every day you have worn the watch, and the month at a glance. Snap & Predict Photograph a plate and see the response WE-IN expects from it. ON YOUR WRIST The whole calculation runs on your Apple Watch. Add the complication to your watch face and your Response is there when you raise your wrist. Rising and settling alerts arrive on the watch, so you are told when something is worth acting on rather than having to go and look. YOUR FIRST THREE DAYS ARE FREE WE-IN is free for three days, counted from the first time you open it. No card is needed to start. After three days WE-IN needs a subscription to continue. Your readings stay in Apple Health either way, so subscribing later picks up where you left off rather than starting from nothing. SUBSCRIPTION WE-IN Premium — 9.99 USD per month, or 79.99 USD per year. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Manage or cancel your subscription in your Apple Account settings. Privacy Policy: https://we-in.co/privacy Terms of Use: https://we-in.co/terms REQUIRES AN APPLE WATCH WE-IN reads heart rate, heart-rate variability, sleep and movement from Apple Health. An Apple Watch is required for it to have anything to read. WE-IN is a wellness app, not a medical device. It does not diagnose, treat, cure, prevent or monitor any condition, and it does not measure anything in your blood. Nothing it shows you is medical advice. If something concerns you about your health, speak to a doctor.

Screenshots

Bio Log4 screens
WE3 screens

Verdict

The call

The clearest difference is update cadence: WE at every 3 days against Bio Log's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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 WE sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Bio Log ships an update every 3 weeks, WE every 3 days. Both last shipped on October 31, 2026.

Scorecard1 real difference · 8 level
Bio Log versus WE: the parameters behind the verdict, then further details
ParameterBio LogWE
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size5 MB44 MB
Age rating17+4+
Developeralexander riegerNeha Rastogi

In-app purchases

1 purchases

Bio Log

Subscriptions1
  • Bio Log Membership$3.991 Month
2 purchases

WE

Subscriptions2
  • WE-IN Premium Monthly3 Days trial$9.991 Month
  • WE-IN Premium Yearly3 Days trial$79.991 Year

Questions

Is Bio Log free?
Bio Log is free to download, with in-app purchases available.
Is WE free?
WE is free to download, with in-app purchases available.
Do Bio Log or WE have ads?
Neither Bio Log nor WE shows ads.
Which is updated more often, Bio Log or WE?
Bio Log ships an update every 3 weeks, and WE every 3 days. Most recently, Bio Log was updated on October 31, 2026 and WE on October 31, 2026.

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