Comparison

Stacker vs Protocol Her

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

Head to head
About

Stacker

This app helps you discover, dose, and track peptide protocols for various health goals. It offers curated stacks, personalized schedules, and progress tracking with reminders. Features include a reconstitution calculator and an AI assistant for protocol summaries.

Highlights
  • Personalized stack building
  • Curated stacks with dosage guides
  • Dose and progress tracking
  • Smart dosing schedules and reminders
  • Reconstitution calculator
  • Expert-vetted peptide library
  • AI peptide assistant (Pro)
Features
Read full description

Stacker is the peptide stack tracker. It's built to help you find the right stack for your goals, dose it correctly, and track whether it's actually working. Most peptide apps stop at "remind me to dose." Stacker takes you from goal → stack → results. BUILD YOUR PERSONALIZED STACK Tell us your goals — fat loss, muscle, recovery, skin, longevity, sleep — and Stacker recommends a named stack (LEAN, GLOW, Wolverine, KLOW) or the individual peptides that fit. Every stack comes with suggested doses, routes, and schedules you can adjust. CURATED STACKS WITH DOSAGE GUIDES Browse proven stacks with clear, per-peptide dosage guidance and difficulty levels — so you know exactly how to run GLP-3, BPC-157, TB-500, retatrutide, tesamorelin and more, not just what they are. TRACK DOSES & PROGRESS Log every dose in a tap, keep your streak, and watch your "Day X of N" protocol progress. Capture progress photos to see changes over time, and run check-ins on the metrics that matter for your goal. DOSING SCHEDULES & SMART REMINDERS Daily, weekly, or custom — Stacker generates the full schedule, anchors it to your real start date, and sends reminders so you never miss a dose. Evening catch-up nudges keep you honest. RECONSTITUTION CALCULATOR Step-by-step: exactly how much BAC water to add and how many units to draw for your dose — paired with a clear subcutaneous injection guide covering technique and site rotation. EXPERT-VETTED PEPTIDE LIBRARY A growing catalog with mechanisms, dosing ranges, cycle lengths, common stacks, and what to watch for — each peptide with Learn, Schedule, and Sources tabs so you go from research to running it in one place. AI PEPTIDE ASSISTANT Ask anything and get instant, informational protocol summaries and schedule checks. (Stacker Pro) BUY WITH MEMBER PRICING Order products through partner checkout, with member pricing on partnered products. (Stacker Pro) PRIVATE BY DEFAULT Your stacks, metrics, and photos are yours. We don't sell your data, and you can delete your account anytime. Stacker Pro Unlock progress photos, the AI peptide assistant, unlimited tracking, member pricing, and research & news. $69.99/year with a 3-day free trial. Payment is charged to your Apple Account after the trial; auto-renews until canceled. Manage or cancel anytime in Settings. Terms: https://usestacker.app/terms Privacy: https://usestacker.app/privacy Stacker is for educational and informational purposes only and is not medical advice. Always consult a qualified healthcare provider before starting any peptide protocol.

About

Protocol Her

This app helps women track their peptide and GLP-1 protocols privately on their device. Log doses, cycle, measurements, and lab values, with optional reminders and Apple Health integration. Includes a unit conversion utility for reconstitution math.

Highlights
  • Private on-device logging
  • Dose and cycle tracking
  • Optional reminders
  • Apple Health integration (read-only)
  • Measurement and photo timeline
  • Reconstitution math utility
  • PDF export for clinicians
Features
Read full description

Private tracking for women following peptide and GLP-1 protocols. No account. No sign-up. Your logs stay on your iPhone. PRIVATE BY DESIGN - No account or login. Open the app and start using it. - Your doses, photos, and notes are stored on your device. - No ads. No social feed. We do not sell your data. STAY ORGANIZED - Log your doses and see your schedule at a glance. - Optional reminders at a time you choose. - Tap any reminder to land on the exact screen it is about. - Quick daily check-ins for weight, water, protein, energy, and appetite. - Log your cycle to keep personal context alongside your protocol. SEE YOUR FULL PICTURE - Connect Apple Health to view your daily steps and nightly sleep alongside your protocol. Read only, and only if you choose to connect. KEEP YOUR HISTORY IN ONE PLACE - A private body measurement and photo timeline that stays on your device. - A simple place to record bloodwork and lab values for your own reference. - Your active compounds and their schedules, organized in one place. RECONSTITUTION MATH, MADE CLEAR (EDUCATIONAL) - A unit conversion utility for the arithmetic behind reconstitution. Convert between concentration, liquid volume, and syringe units. - This is an educational reference for the math only. It is not a dose calculator and does not provide medical or dosing advice. Always double check your own figures and follow your clinician. BRING IT TO YOUR APPOINTMENTS - Export a clean, readable PDF of your logged history to share with your clinician. MADE FOR WOMEN Protocol Her focuses on what women actually track, in plain language, with support resources easy to find. MEMBERSHIP Protocol Her offers an optional auto-renewing subscription with monthly and yearly plans. Current pricing is always shown in the app before you purchase. Payment is charged to your Apple ID at confirmation of purchase. Your subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Privacy Policy: https://protocolher.com/privacy Terms of Use: https://protocolher.com/terms IMPORTANT Protocol Her is an organizational and educational tool. It does not provide medical advice, diagnosis, treatment, or dosing recommendations. Always consult a qualified healthcare professional about your health and any medication or peptide. If you are struggling, support resources are available in the app, including crisis support and the National Alliance for Eating Disorders.

Screenshots

Stacker4 screens
Protocol Her4 screens

Verdict

The call

The clearest difference is rating: Stacker at 5.0 against Protocol Her's 4.8. On price, review sentiment, ratings volume and update cadence 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. Stacker sells 1 in-app purchase, starting at $69.99 per year and Protocol Her sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Stacker holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 12 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Stacker ships an update every 4 days, Protocol Her every 6 days. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

Scorecard1 real difference · 9 level
Stacker versus Protocol Her: the parameters behind the verdict, then further details
ParameterStackerProtocol Her
PriceFreeFree
Rating5.0 (12 ratings) — better4.8 (9 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings12 — better9
Update frequencyEvery 4 days — betterEvery 6 days
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size49 MB17 MB
Age rating17+17+
DeveloperAbove Capital LLCDZ LABS LLC

Customer experience

Stacker

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Protocol Her

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Stacker

Subscriptions1
  • Stacker Pro3 Days trial$69.991 Year
2 purchases

Protocol Her

Subscriptions2
  • Monthly$12.991 Month
  • Annual3 Days trial$69.991 Year

Questions

Is Stacker free?
Stacker is free to download, with in-app purchases available.
Is Protocol Her free?
Protocol Her is free to download, with in-app purchases available.
Which has better reviews, Stacker or Protocol Her?
Stacker is rated higher. Stacker averages 5.0 out of 5 from 12 ratings, while Protocol Her averages 4.8 from 9 ratings.
Do Stacker or Protocol Her have ads?
Both Stacker and Protocol Her show ads.
Which is updated more often, Stacker or Protocol Her?
Stacker ships an update every 4 days, and Protocol Her every 6 days. Most recently, Stacker was updated on October 1, 2026 and Protocol Her on September 30, 2026.

Other comparisons