Comparison

Peptides Calculator vs PepStash

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

Head to head
About

Peptides Calculator

This app helps users log, organize, and manage their peptide preparation process. It offers features for calculating reconstitution details, saving vial records, and accessing educational content. An optional subscription unlocks unlimited entries, enhanced tracking, and multi-device sync.

Highlights
  • Log and calculate reconstitution details
  • Save and organize vial records
  • Browse peptide reference library
  • Access educational videos and articles
  • Track weight over time
  • Multi-device sync (Pro)
Features
Read full description

Peptides Calculator — the all-in-one peptide tracker and reconstitution calculator. Log, organize, and manage your peptide preparation process in one place: reconstitution math, BAC water (bacteriostatic water) amounts, syringe units and mL, vial records, and dose logs. Whether you're engaging in research, personal study, or general wellness tracking, this peptides calculator keeps your information clear and organized. Free Features: Peptide reconstitution calculator — total amount (mg), diluent/BAC water volume, and units per insulin syringe or mL GLP-1 friendly logging — record units, dates, and notes for any peptide protocol Vial tracker — save and organize vial records with preparation dates and usage logs Injection log with site tracking Browse a general peptide reference library Access educational videos and articles Track your weight over time with a simple chart No login required for basic features More Built-In Tools: Fasting timer with Live Activities Meal and macro logging Lab results tracking and charts Dose reminders, streaks, home-screen widgets, Apple Watch app, and iMessage protocol sharing Go Pro – Unlock Even More (Subscription Required): Unlimited vials and log entries Weight & calendar tracking with enhanced charts Multi-device sync (sign in with Apple or Google for secure data access) Priority customer support Early access to new features and Pro-only updates All current and future premium features unlocked A subscription is required for unlimited access to Pro features. You can choose a monthly or yearly plan. Subscription auto-renews unless canceled at least 24 hours before the end of the current period. Manage your subscription anytime in your App Store account settings. Disclaimer Peptides Calculator is intended strictly for personal, educational, and informational purposes. This app is not a medical device and does not provide medical advice, diagnosis, treatment recommendations, or dosage guidance. The app does not suggest or imply the use of any specific peptides, medications, or substances. It is a self-managed logging tool for personal tracking only. Users are advised to consult with a licensed physician or medical professional before making any decisions related to health, medications, supplements, or treatment options. Peptides Calculator is not affiliated with any pharmaceutical company, healthcare institution, or regulatory authority. The app is not intended to replace professional medical consultation, diagnosis, or care. Privacy Policy: https://www.peptidescalculator.app/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PepStash

Manage your peptide inventory, track costs, and log doses with this personal companion app. It helps calculate concentrations, suggests ideal water amounts, and syncs data across household devices via iCloud for seamless sharing and reminders.

Highlights
  • Peptide inventory management
  • Cost per milligram calculation
  • Reconstitution concentration calculator
  • Dose logging with vial tracking
  • Household data syncing via iCloud
  • Dose reminders and alerts
  • Purity test result linking
Features
Read full description

PepStash is your personal peptide management companion. Track inventory from purchase through reconstitution to dose logging — synced across your household via iCloud. INVENTORY & KITS Add individual vials or purchase kits. See quantities and milligram breakdowns at a glance. Track what you paid per kit and PepStash calculates cost per milligram. Add third-party purity test results with a link to the report. Stock rotation sorting ensures oldest kits are used first. PRICE ANALYTICS Compare cost per milligram across suppliers. Toggle between labeled and tested mg values to see what you actually received versus what you paid for. RECONSTITUTION Enter your bacteriostatic water amount and get your concentration instantly. The built-in calculator suggests ideal water amounts based on your expected dose, highlighting options that land on clean syringe units. DOSE LOGGING Log every dose with peptide name, amount, unit (mg, mcg, IU), and source vial. Active vials automatically track remaining milligrams so you always know what's left. SHARE WITH YOUR PARTNER Invite your spouse or partner via CloudKit sharing. Both of you can manage inventory, reconstitute vials, and log doses from your own devices. Each person's doses are tagged separately. DASHBOARD & REMINDERS Your daily command center shows today's doses, active vial status with color-coded depletion gauges, low inventory alerts, and quick-action buttons. Set recurring dose schedules with reminders so you never miss a dose day. PRIVACY FIRST All data stays on your device and your private iCloud account. No servers, no accounts, no tracking.

Screenshots

Peptides Calculator4 screens
PepStash4 screens

Verdict

The call

The clearest difference is rating: PepStash at 5.0 against Peptides Calculator's 4.3. PepStash also leads on in-app purchases (none vs 11). Peptides Calculator's advantage is ratings volume (174 vs 5). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Peptides Calculator sells 11 in-app purchases, starting at $9.99 per month. PepStash asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PepStash holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Peptides Calculator has 174 ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

Peptides Calculator ships an update every 5 days, PepStash every 3 days. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Peptides Calculator versus PepStash: the parameters behind the verdict, then further details
ParameterPeptides CalculatorPepStash
PriceFreeFree
Rating4.3 (174 ratings)5.0 (5 ratings) — better
Positive reviews54.5% of reviews—
Number of ratings174 — better5
Update frequencyEvery 5 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size77 MB3 MB
Age rating17+4+
DeveloperSphnix, IncAaron Voges

Customer experience

Peptides Calculator

All ratings173 ratings
Positive82.1%
Neutral5.2%
Negative12.7%
Written reviews55 reviews
Positive54.5%
Neutral20.0%
Negative25.5%

PepStash

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Peptides Calculator

Reported bugs

2 issues
  • All vials disappeared after an update
  • Unable to find how to update streaks and last taken

Requested features

4 requests
  • Add shot tracker to record when a dose was taken
  • Allow editing of vial information and dosing
  • Add option to set cycle length in weeks, not just days
  • Allow changing dose for different weeks when titrating

PepStash

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Peptides Calculator

Subscriptions10
  • Monthly Premium Access7 Days trial$9.991 Month
  • Family Monthly Premium Access$14.991 Month
  • Premium Plus7 Days trial$14.991 Month
Show 7 more
  • Premium Plus Family (Montly)$19.991 Month
  • Pro Loyalty Yearly$54.991 Year
  • Yearly Premium Access7 Days trial$99.991 Year
  • Premium Plus Loyalty Yearly$99.991 Year
  • Family Yearly Premium Access$149.991 Year
  • Premium Plus (Yearly)7 Days trial$149.991 Year
  • Premium Plus — Family (Yearly)$199.991 Year
One-time1
  • Remove Ads$2.99
None

PepStash

No in-app purchases

Questions

Is Peptides Calculator free?
Peptides Calculator is free to download, with in-app purchases available.
Is PepStash free?
PepStash is free to download, with no in-app purchases.
Which has better reviews, Peptides Calculator or PepStash?
PepStash is rated higher. Peptides Calculator averages 4.3 out of 5 from 174 ratings, while PepStash averages 5.0 from 5 ratings.
Do Peptides Calculator or PepStash have ads?
Neither Peptides Calculator nor PepStash shows ads.
Which is updated more often, Peptides Calculator or PepStash?
Peptides Calculator ships an update every 5 days, and PepStash every 3 days. Most recently, Peptides Calculator was updated on October 24, 2026 and PepStash on October 24, 2026.

Other comparisons