Stacksy vs STAKK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stacksy
Organize and track your personal peptide protocol with this private application. Manage your entire routine, including what peptides to take and when. Offers monthly and yearly subscription plans for full access.
- Organize peptide protocols
- Track peptide dosages
- Schedule peptide intake
- Private routine management
- GLP-1 tracking
Read full descriptionHide full description
Stacksy is a simple, private way to organize and track your personal peptide protocol. Your whole routine in one place: what you're taking and when to take it. Stacksy requires a Premium auto-renewable subscription to use the app: - Stacksy Premium (Monthly): $9.99 / month - Stacksy Premium (Yearly): $39.99 / year Payment is charged to your Apple ID at purchase confirmation. Your subscription auto-renews unless cancelled at least 24 hours before the period ends. Manage or cancel anytime in your App Store account settings. Privacy Policy: https://stacksy.netlify.app/privacy Terms of Use (EULA): https://stacksy.netlify.app/terms
STAKK
Read full descriptionHide full description
Take control of your peptide routine with STAKK. STAKK is an all-in-one peptide tracker, injection log, reconstitution calculator, and protocol organizer. Whether you are tracking GLP-1 medications such as Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Rybelsus®, Saxenda®, Victoza® or Trulicity®, peptides such as BPC-157 and TB-500, or a completely custom peptide stack, STAKK helps you keep your doses, injections, schedules, cycles, and history organized in one clean app. PEPTIDE & INJECTION TRACKING Record your injections in seconds and build a complete history of your routine. STAKK keeps your peptide, date, time, dose, and schedule together so you no longer have to rely on scattered notes, screenshots, spreadsheets, or memory. RECONSTITUTION CALCULATOR Take the repetitive math out of reconstitution. Enter the amount in your vial, the volume of reconstitution liquid, and the amount you want to measure. STAKK calculates the resulting concentration and corresponding syringe volume for you. CUSTOM PEPTIDE STACKS STAKK is built for more than one medication or peptide at a time. Organize multiple compounds into your personal stack while maintaining individual schedules, injection records, and histories for each one. SMART SCHEDULES & REMINDERS Create schedules around your routine and let STAKK help you keep track of what comes next. See upcoming injections, follow your cycle timeline, and receive reminders based on the schedules you create. Each peptide or medication can have its own independent schedule, giving you flexibility even when your routine contains multiple compounds with different intervals. INJECTION SITE ROTATION Keep track of where previous injections were administered using a visual injection-site history. Instead of trying to remember which location you used last time, STAKK gives you a simple record you can review whenever needed. CYCLE HISTORY & PROGRESS Your previous routines do not disappear once a cycle ends. STAKK keeps your logged history available so you can review past injections, timing, quantities, peptide combinations, and completed cycles over time. BUILT FOR PEPTIDE TRACKING STAKK can be used to organize many different peptide and GLP-1 routines, including semaglutide, tirzepatide, liraglutide, dulaglutide, retatrutide, BPC-157, TB-500, CJC-1295, Ipamorelin, GHK-Cu, MOTS-c, Tesamorelin, Sermorelin, and custom entries. IMPORTANT HEALTH INFORMATION Availability, approval status, and permitted use of individual substances vary by country. The inclusion of a substance within STAKK does not constitute an endorsement or recommendation for its use. STAKK is a tracking, logging, calculation, and organizational tool only. It does not provide medical advice, diagnosis, treatment recommendations, dosing recommendations, prescribing guidance, or instructions to begin, change, or discontinue any medication, peptide, or other substance. Any calculation shown within STAKK is based on information entered by the user and should be independently verified where appropriate. Always consult a qualified healthcare professional regarding medications, peptides, injections, dosing, side effects, treatment decisions, or other medical concerns. SUBSCRIPTION INFORMATION Some features within STAKK require an active subscription. If you choose to purchase a subscription, payment will be charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current subscription period. Your account will be charged for renewal within 24 hours before the end of the current period at the price of your selected plan. Subscriptions can be managed or cancelled through your Apple Account Settings. Terms of Use (EULA): STAKK uses Apple’s Standard Licensed Application End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Stacksy at none against STAKK's shown. Stacksy also leads on update cadence (every 2 days vs monthly) and iOS requirement (15.1 vs 17.6). On price, 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
Both are free to download. Stacksy sells 5 in-app purchases, starting at $9.99 per month and STAKK sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Stacksy ships an update every 2 days, STAKK monthly. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.
| Parameter | Stacksy | STAKK |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (16 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 2 days — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 65 MB | 9 MB |
| Age rating | 17+ | 12+ |
| Developer | Velor4 LLC | Trusted Brands UG (haftungsbeschrankt) |
In-app purchases
Stacksy
- Stacksy Pro (Monthly)$9.991 Month
- Stacksy Pro (Yearly)3 Days trial$24.991 Year
- Stacksy Pro (Yearly)7 Days trial$24.991 Year
Show 2 moreShow fewer
- Stacksy Pro (Yearly)$24.991 Year
- Stacksy Pro (Yearly)3 Days trial$39.991 Year
STAKK
- Stakk Premium Weekly$6.997 Days
- Stakk Premium Yearly$49.991 Year









