Comparison

Stack vs Titrate

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

Head to head
About

Stack

Features
Read full description

Stack is the all-in-one tracker for peptides, GLP-1 medications, and TRT protocols. Log every injection, build custom dosing schedules, track your progress, and keep your full history organized in one private place. Built for adults working with a prescribing healthcare provider, Stack replaces scattered notes and spreadsheets with a simple, consistent system you control. You enter your own values (peptide name, dose, schedule, and sites) and Stack keeps them organized, reminds you, and shows your progress over time. FEATURES • Custom Protocols & Stacks — Build your own multi-peptide protocols with flexible schedules (daily, weekly, every X days, or custom). Run multiple stacks at once, each clearly organized. • Smart Dose Logging — Log every injection in seconds and see what's due today on your Home screen and calendar. A daily streak keeps you consistent. • Reconstitution Calculator — Take the guesswork out of mixing. Enter vial amount, diluent volume, and target dose to get the exact mL or insulin-syringe units to draw. • Vial & Refill Tracking — Set how much each vial holds, watch it deplete with every dose, and refill in one tap. A tap-to-flip ring shows the exact percentage remaining. • Injection Site Tracker — Rotate sites with an interactive body map that remembers your recent spots, so you can avoid reusing the same area. • Apple Health Sync — Pull in weight, BMI, resting heart rate, HRV, sleep, steps, active energy, blood pressure, respiratory rate, body fat, lean mass, and VO2 max to see the full picture. • Progress Photos & Compare — Capture progress photos and view them side by side with weight and date overlays. Hide weight for privacy, then share a branded comparison. • Meal Scan — Snap a photo of your meal to estimate macros and keep nutrition alongside your protocol. • AI Assistant — Ask questions about your active stacks and protocols in a private chat built into the app. • Metrics & Insights — Clean charts and stats show how your protocol is trending over time. • Home Screen Widget — See your next dose and stay on track without opening the app. • Shareable Protocol Card — Generate a clean, branded card of your active protocol to save or share. PRICING Stack requires a subscription to unlock the full experience. IMPORTANT Stack is a personal record-keeping and organization tool for informational purposes only. It does not provide medical advice, diagnosis, or treatment, and is not a substitute for professional care. Always consult a qualified healthcare provider before starting, changing, or stopping any medication or protocol. Terms of Use (EULA): https://www.whatsyourstack.app/terms.html Privacy Policy: https://www.whatsyourstack.app/privacy.html Questions or feedback? Email us at contact@whatsyourstack.app.

About

Titrate

Log peptide and GLP-1 injections with precision. Track doses, frequencies, and cycles using a clean, clinical interface. Includes smart reminders and weight tracking, with premium features for vial mixing and hydration.

Highlights
  • Injection logging with dose tracking
  • GLP-1 and peptide support
  • Weight tracking with progress trends
  • Smart injection reminders
  • Vial mixing calculator (Premium)
  • Hydration tracking (Premium)
Features
Read full description

Most health apps want your attention. Titrate wants your precision. Titrate logs every injection in seconds, with a clean, clinical interface and zero gamification. No streaks. No badges. No noise. Just your protocol, tracked precisely. Build your titration ladder and Titrate follows it — where you are, what's next, and when. Track your vials as you use them and know exactly when each one runs out. Whether you're on Semaglutide, Tirzepatide, Retatrutide, BPC-157, Ipamorelin, Semax, or any other compound, Titrate keeps it organized and on schedule. FEATURES — Injection logging with dose tracking — Titration schedules built from your own protocol — Vial tracking with run-out dates and freshness countdowns — Support for GLP-1 medications and peptides across six categories — Weight tracking with progress trends — Vial mixing calculator (Premium) — Smart, reliable injection and step-up reminders — Hydration tracking (Premium) — Beautiful dark interface built for daily use YOUR PRIVACY All data is stored locally on your device. Nothing is transmitted to external servers. Ever. PREMIUM Unlock the full Titrate experience with a monthly or yearly subscription. Premium adds the complete titration ladder with dated step-ups, reminders before each planned increase, run-out dates that account for your climbing doses, the reconstitution calculator, and hydration tracking. Track your protocol with precision. — — — SUBSCRIPTION DETAILS Titrate Premium Monthly — $2.99 per month Titrate Premium Annual — $19.99 per year Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period at the cost of the chosen package. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Privacy Policy: https://titrationlabs.com/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Stack4 screens
Titrate4 screens

Verdict

The call

The clearest difference is iOS requirement: Titrate at 15.1 against Stack's 18.0. On price, update cadence, ads and in-app purchases 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. Stack sells 2 in-app purchases, starting at $9.99 per 7 days and Titrate sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Stack ships an update every 8 days, Titrate every 11 days. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.

Scorecard1 real difference · 9 level
Stack versus Titrate: the parameters behind the verdict, then further details
ParameterStackTitrate
PriceFreeFree
Rating—5.0 (17 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—17 — better
Update frequencyEvery 8 days — betterEvery 11 days
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size136 MB33 MB
Age rating17+12+
DeveloperAmari ThomasTitrate Labs LLC

In-app purchases

2 purchases

Stack

Subscriptions2
  • Stack Weekly$9.997 Days
  • Stack Yearly$49.991 Year
2 purchases

Titrate

Subscriptions2
  • Titrate Premium Monthly$4.991 Month
  • Titrate Premium Annual$24.991 Year

Questions

Is Stack free?
Stack is free to download, with in-app purchases available.
Is Titrate free?
Titrate is free to download, with in-app purchases available.
Do Stack or Titrate have ads?
Neither Stack nor Titrate shows ads.
Which is updated more often, Stack or Titrate?
Stack ships an update every 8 days, and Titrate every 11 days. Most recently, Stack was updated on September 14, 2026 and Titrate on September 21, 2026.

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