Comparison

Pep Planner vs Ester

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

Head to head
About

Pep Planner

This app helps researchers organize peptide and GLP-1 protocols, inventory, and data. It features daily task tracking, protocol building, a peptide calculator, and vendor/order management. Research+ offers advanced features like AI assistance and cloud sync.

Highlights
  • Protocol tracking and scheduling
  • Inventory and stockpile management
  • Peptide calculator
  • Vendor and order tracking
  • AI Research assistant (Research+)
  • Cloud sync (Research+)
Features
Read full description

Pep Planner is the planner you wish existed three spreadsheets ago. Whether you're just starting out or deep in the rabbit hole, it keeps your protocols, reminders, inventory, and history organized so you don't have to. Organize your peptide research. TODAY'S RESEARCH Front and center when you open the app. Inspired by the handmade "Today's Research" bookmarks from every original physical Pep Planner, now interactive. Your day is split into Morning and Evening with every task laid out. Tap to mark complete, add a note, and move on. Checked something by mistake? Tap Undo. REMINDERS Get reminded when it's time, so nothing on your schedule slips by. FREE & RESEARCH+ Pep Planner is free to use: no payment, no commitment. New users get 14 days of full Research+ access to try everything. After the trial, keep using the app free or upgrade to Research+ for unlimited protocols, unlimited stockpile, cloud sync across all devices, AI Assistant, Buddy System, advanced analytics, and premium themes. Monthly, annual, or lifetime. Your call. YOUR PROTOCOLS Build and track your own schedules: cycles, frequency, timing, and notes. Whether it's one peptide or a full stack, the app remembers which week you're on. Quick Start gets you running in 30 seconds. Fill in the details when you're ready. AI ASSISTANT (Research+) Ask questions about your own records right inside the app. It reads your protocols, notes, and history, not the internet. No outside guidance. Just your data, organized and surfaced when you need it. BUDDY SYSTEM (Research+) One app for two people. Add a partner and keep records for both. A single tap switches between views. Each person's data stays completely separate. VENDORS & ORDERS Store vendor info, payment methods, tracking numbers, and order history in one place. Never lose a contact or forget who had what in stock. STOCKPILE Know exactly what you have. Track quantities, batches, expiration dates, and notes. Orders can move straight into your stockpile when they arrive. No more panic counting. CALENDAR More than just dates. Protocols, supplements, notes, future buys, and breaks, all on one screen. See what's coming, what's ending, and what needs attention. Daily notes and task completion built in. HOME DASHBOARD Pick Simple for a clean daily view or Advanced for the full picture: tasks, active protocols, orders, inventory, goals, hydration, and weight at a glance. GOALS & NOTES Set your own milestones. Keep free-form notes. Track what matters to you. ANALYTICS & THEMES Your data works for you. Consistency, spending breakdowns, delivery lead times, and low stock alerts, all calculated from what you enter. Choose themes like Sage, Mauve, and Taupe and set your notification preferences. SYNCED & PRIVATE Your data syncs across your phone, tablet, and the web. We never sell or share it. Built for the peptide community. All content is yours: user-created, user-managed. This app is an organizational tool only. Not medical advice. Not health guidance. Not for diagnosis or treatment. Privacy Policy: [thepepplanner.app/privacy](https://thepepplanner.app/privacy) Terms of Use: [thepepplanner.app/terms](https://thepepplanner.app/terms)

About

Ester

Features
Read full description

Ester is a private tracker for physician-prescribed hormone and peptide therapy - TRT, GLP-1 medications, and other injectable or oral treatments. Log doses in two taps, see estimated medication levels, keep your lab work in context, and watch your real progress. START WITH 7 DAYS FREE Every feature is included with an Ester Pro subscription, and new subscribers get a 7-day free trial. EVERYTHING STAYS ON YOUR DEVICE No account. No server. No analytics. Your data never leaves your phone - we could not hand it over if we wanted to. Lock the app with Face ID and choose a discreet home-screen icon. LOG IN TWO TAPS A daily checklist with reminders, streaks, and injection-site rotation history. Vial inventory tracks what you have on hand, how much is left, and when you'll run out. ESTIMATED LEVELS A levels chart estimates active medication from the doses you log, using published half-life values. Solid past, projected future, a steady-state badge - and a washout view when a treatment period ends. LABS IN CONTEXT Record blood panels with editable reference ranges. Trends show every marker against your treatment timeline, and values outside your reference range are flagged. RECEIPTS FOR YOUR PROTOCOL Report cards summarize each treatment period: weight, body composition, strength, lab changes, and adherence. Compare periods side by side and share progress cards with medication names hidden by default. ESTER NEVER GIVES ADVICE Ester tracks and visualizes data you enter. It does not recommend medications, doses, or schedules, and it is not a substitute for medical care. Always consult your physician. Ester requires an auto-renewing Ester Pro subscription ($4.99/month or $29.99/year). New subscribers get a 7-day free trial. Subscriptions renew unless cancelled in your App Store settings. Your data stays on your device even if your subscription ends. Terms: https://castanedanetworks.com/ester/terms Privacy: https://castanedanetworks.com/ester/privacy

Screenshots

Pep Planner2 screens
Ester4 screens

Verdict

The call

The clearest difference is iOS requirement: Pep Planner at 15.0 against Ester's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Pep Planner sells 6 in-app purchases, starting at $4.99 per month and Ester sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference ยท 7 level
Pep Planner versus Ester: the parameters behind the verdict, then further details
ParameterPep PlannerEster
PriceFreeFree
Positive reviews0.0% of reviewsโ€”
Update frequencyEvery 2 monthsโ€”
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumโ€”
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better18.0
Further details โ€” not scored
Size110 MB3 MB
Age rating4+12+
DeveloperLeBrock MaldonadoCastaneda Networks LLC

In-app purchases

6 purchases

Pep Planner

Subscriptions4
  • The Pep Planner โ€“ Monthly$4.991 Month
  • The Pep Planner - Research+ Monthly$4.991 Month
  • The Pep Planner โ€“ Annual$39.991 Year
Show 1 more
  • The Pep Planner - Research+ Annual$39.991 Year
One-time2
  • The Pep Planner - Research+ Life$99.99
  • The Pep Planner โ€“ Lifetime$119.99
2 purchases

Ester

Subscriptions2
  • Ester Pro7 Days trial$4.991 Month
  • Ester Pro7 Days trial$29.991 Year

Questions

Is Pep Planner free?
Pep Planner is free to download, with in-app purchases available.
Is Ester free?
Ester is free to download, with in-app purchases available.
Do Pep Planner or Ester have ads?
Neither Pep Planner nor Ester shows ads.

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