Comparison

Peptide Vault vs Stackr

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

Head to head
About

Peptide Vault

Log peptide doses, track injection sites, and manage custom regimens. Access a reference library of over 50 peptides and a reconstitution calculator. All data is stored privately on your device.

Highlights
  • Dose logging
  • Injection site rotation
  • Custom regimen building
  • Compound overlap reporting
  • Peptide reference library
  • Reconstitution calculator
  • On-device data storage
Features
Read full description

Peptide Vault is the tracking and research companion for people who take their protocol seriously. TRACK Track an FDA-approved GLP-1 (semaglutide, tirzepatide, and other approved GLP-1s): dose schedule, next-dose countdown, streaks, adherence, dose history, and reminders. The Reconstitution calculator does the math for you — vial size and water in, syringe units out. BUILT AROUND YOUR SCHEDULE Pick your first dose day and your schedule patterns from it — weekly, twice weekly, three times weekly, every other day, or every two weeks. Log a dose in seconds. Your history lives on a calendar you can actually read. PEPTIDE VAULT PRO • My cabinet — save vial photos, ingredient amounts, concentrations, mix dates and notes, with cabinet backup and restore. • Custom blend protocols — one schedule and one log for a multi-ingredient vial, with a recorded ingredient breakdown. • Coach — a research assistant grounded in your own protocol. Ask about the published research behind the compounds you track. Coach's answers are grounded in published research, and it never gives dosing or medical advice. • Track unlimited compounds across your whole protocol. • Open all 203 compounds in the research library — every entry referenced, with regulatory status, mechanisms, risks and side effects stated plainly. • Site rotation, suggested at every dose. • Dose history and trends across everything you run. • Journal with full record export, any time. COMMUNITY Join public conversations about app tips and staying organized. Posts and replies are moderated, with likes, sharing, reporting and blocking. Your optional Community profile and posts are stored on our servers; approved posts are public. Private tracking records are not posted automatically. Activity notifications are optional. YOUR DATA No account is required for private tracking. Your protocol, logs, and journal live on your device. Coach shares only what you approve — your compound names and stack summary, never your journal, notes, or Apple Health data. Peptide Vault is a tracking and reference tool. It does not provide medical advice, diagnosis, or treatment. Always consult a medical professional before using peptides. Peptide Vault Pro is an auto-renewing subscription: $39.99 per year or $9.99 per month (prices may vary by region). Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel your subscription in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://100apps.app/privacy/peptide-vault

About

Stackr

This app simplifies tracking peptide and GLP-1 doses, including supplies like vials and pens. It offers smart reminders, home screen widgets, and visual charts of estimated active levels based on half-life. Designed for users managing peptide protocols, it keeps your dosing information organized and accessible.

Highlights
  • Log peptide and GLP-1 doses
  • Track vials, pens, and other supplies
  • Smart reminders for next doses
  • Home screen widgets
  • Estimated active level charts
  • Multi-peptide stack tracking
  • Reference pages for common compounds
Features
Read full description

Stackr is the all-in-one tracker for your peptide and GLP-1 protocol. Every dose, vial and meal in one place, with the math done for you. KEY FEATURES • Dose tracking and reminders Log a dose in seconds from your Home screen. Run daily, weekly, every-few-days or specific-day schedules, and several protocols at once. Reminders make sure you never miss a dose, and Home Screen widgets show what's next. • Dose calculator Enter your vial strength, water and dose, and see exactly how many units to draw on a U-100 or U-40 syringe. Works in mcg, mg, IU and units. • Supplies and vials Track vials, pens and other supplies. Stackr counts down what's left every time you log and warns you before you run out. • Progress Keep your weight, progress photos and dose history together, with a calendar of taken and missed doses and estimated active levels from your logs. • Food and calories Snap a meal, scan a barcode, search a food or just say what you ate. Stackr tracks calories and protein against your daily plan. • Stackr Coach Ask the AI coach questions about your routine and your meals, any time. • Learn Reference pages for semaglutide, tirzepatide, retatrutide, BPC-157, TB-500, GHK-Cu and 100+ more, with research status and sources. WHY STACKR • Built for GLP-1s and peptides, from one weekly shot to a full stack • Pounds or kilograms, mcg or mg, U-100 or U-40 • Syncs across your devices when you sign in • Message the team directly from Settings Stackr is a personal tracking and educational app. It does not give medical advice, prescribe treatments or tell you which peptide, dose or schedule is right for you. Always talk to a qualified healthcare professional. Active levels and photo-based nutrition values are estimates. SUBSCRIPTION Stackr is free to download. Full access requires a paid Stackr+ subscription. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getstackr.app/privacy

Screenshots

Peptide Vault4 screens
Stackr4 screens

Verdict

The call

The clearest difference is rating: Peptide Vault at 5.0 against Stackr's 4.4. Peptide Vault also leads on review sentiment (100% vs 67%) and device support (3 vs 1). Stackr's advantage is monetization model (freemium vs subscription) and ratings volume (174 vs 9). 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. Peptide Vault sells 11 in-app purchases, starting at $9.99 per month and Stackr sells 7 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Peptide Vault holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Stackr has 174 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 100% of Peptide Vault's written reviews are positive against 67% of Stackr's.

UpkeepUpdate frequency

Peptide Vault ships an update weekly, Stackr every 4 days. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
Peptide Vault versus Stackr: the parameters behind the verdict, then further details
ParameterPeptide VaultStackr
PriceFreeFree
Rating5.0 (9 ratings) — better4.4 (174 ratings)
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings9174 — better
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size54 MB88 MB
Age rating17+12+
DeveloperJacob TeagueStackr Holdings LLC

Customer experience

Peptide Vault

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Stackr

All ratings174 ratings
Positive87.4%
Neutral1.1%
Negative11.5%
Written reviews30 reviews
Positive66.7%
Neutral3.3%
Negative30.0%

In-app purchases

11 purchases

Peptide Vault

Subscriptions11
  • Peptide Vault Pro Monthly$9.991 Month
  • Pro Annual$29.991 Year
  • Pro Annual — 7 Days Free7 Days trial$29.991 Year
Show 8 more
  • Pro Annual — 14 Days Free14 Days trial$29.991 Year
  • Pro Annual$39.991 Year
  • Pro Annual — 7 Days Free7 Days trial$39.991 Year
  • Pro Annual — 14 Days Free14 Days trial$39.991 Year
  • Pro Annual — 14 Days Free14 Days trial$49.991 Year
  • Pro Annual$49.991 Year
  • Pro Annual — 7 Days Free7 Days trial$49.991 Year
  • Peptide Vault Pro7 Days trial$69.991 Year
7 purchases

Stackr

Subscriptions7
  • Stackr+ Weekly$7.997 Days
  • Monthly$12.991 Month
  • Stackr+ Yearly$29.991 Year
Show 4 more
  • Stackr+ Yearly$49.991 Year
  • Stackr+ Yearly3 Days trial$49.991 Year
  • Stackr+ Yearly$59.991 Year
  • Yearly3 Days trial$69.991 Year

Questions

Is Peptide Vault free?
Peptide Vault is free to download, with in-app purchases available.
Is Stackr free?
Stackr is free to download, with in-app purchases available.
Which has better reviews, Peptide Vault or Stackr?
Peptide Vault is rated higher. Peptide Vault averages 5.0 out of 5 from 9 ratings, while Stackr averages 4.4 from 174 ratings.
Do Peptide Vault or Stackr have ads?
Neither Peptide Vault nor Stackr shows ads.
Which is updated more often, Peptide Vault or Stackr?
Peptide Vault ships an update weekly, and Stackr every 4 days. Most recently, Peptide Vault was updated on October 12, 2026 and Stackr on October 18, 2026.

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