Comparison

Peptide Calculator・Tracker vs Injectly

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

Head to head
About

Peptide Calculator・Tracker

This app serves as a comprehensive peptide dosage calculator for researchers and enthusiasts. It offers features like saving calculations, tracking peptide usage, and a reconstitution guide. Users can also explore mixing ratios and export results to PDF.

Highlights
  • Syringe size options
  • Save and edit calculations
  • Peptide tracking and history
  • Reconstitution guide
  • Mixing ratio calculator
  • PDF export
Features
Read full description

Peptide Calculator App: Precision at Your Fingertips Introducing the #1 Peptide Dosage Calculator, the ultimate PepCalc solution for researchers, scientists, and peptide enthusiasts. Key Features: Comprehensive Syringe Options: Choose from U20, U30, U40, U100, and other syringe sizes for versatile calculations, ensuring you have the right tool for any scenario. Save and Edit Calculations: Calculations are saved automatically, so you can revisit and edit them at your convenience. Add notes to each calculation for better organisation and reference. Peptide Tracking & History: Keep a clear record of your peptide usage and calculations over time with a built-in peptide tracker. View past entries in a chronological timeline, monitor changes in dosages or ratios, and maintain a consistent log for reference, comparison, and long-term planning Peptide Reconstitution Guide: Our peptide reconstitution chart provides you with the estimated amount of water required for your peptides, simplifying the reconstitution process. Mixing Ratios Simplified: Explore and determine the optimal mixing ratios for different peptide sequences with ease, thanks to our intuitive peptide mixing calculator. Bacteriostatic Water Compatibility: Utilise bacteriostatic water calculations to perfect your mix, ensuring compatibility and precision in your experiments. Peptide Library Resource: Access a rich peptide library as a resource for your research, enhancing your understanding and application of peptides. Recalculation Option: Mistakes happen, but our app has you covered with the option to recalculate peptides if incorrect values are selected initially. PDF Export: Print your results into a PDF for easy sharing, documentation, and record-keeping. Dark and Light Modes: Choose between dark and light modes to suit your visual preference, making the app accessible at any time, under any lighting condition. PepCalc is more than just a peptide calculator; it's a research companion that grows with you. Disclaimer: The App is intended only for educational and laboratory purposes. It is not designed for use by medical professionals and should not be considered a medical guide or tool. Always consult with a local professional and follow your local regulations and guidelines. Please note: For using the premium features, a valid in-app purchase is necessary. The payment will be charged to your iTunes account once you confirm the subscription. The subscription gets automatically renewed. However, you can manage the auto-renewal option by using the account settings after making a purchase. Terms of Use: https://zipoapps.com/peptideios/terms Privacy Policy: https://zipoapps.com/peptideios/privacy

About

Injectly

This app helps you meticulously track injectable medications, offering reminders and insights into serum concentration levels. It supports custom protocols, medication blending, and provides a searchable history of all logged injections. The app is designed to be free, private, and user-friendly for managing various therapies.

Highlights
  • Log injections with dose, medication, date, and time
  • Save and log custom protocols
  • Set injection reminders
  • Calendar and list view of injections
  • Serum concentration insights dashboard
  • Blend protocols for multi-peptide vials
  • Medication glossary
  • Export logged doses as CSV
Features
Read full description

Injectly is the simple, yet powerful way to track your injectable medications. No ads, no subscription, and no tracking — just free help for staying on top of your regimen. No account is needed to log injections, set daily or weekly reminders, and view your history and Insights. Create a free account with Apple or Google to sync across your devices and to unlock advanced scheduling — cycles, titration (warm-up), and custom interval reminders. Your health data is always yours: never sold, never used for advertising, and you can export or delete it anytime. Whether you're managing peptides, prescriptions, or personal health therapies, Injectly helps you log every injection, stay on schedule, and understand exactly what's happening between each dose. Enjoy! For supported medications, the Insights tab turns your logbook into a live serum concentration dashboard. Injectly automatically pulls in the applicable medication you've been using, calculates current and projected levels based on your logged dose history and weight, and shows how close you are to peak along with how much of the dose remains active. Features: • Log each injection with dose, medication, date, time, route (SubQ/IM/IV), and injection site so you always have a searchable history — and can rotate sites. • Save and reuse custom protocols for peptides, prescriptions, or personal therapies in a couple of taps. • Reminders that match your cadence — daily, weekly, or specific weekdays — with multiple reminders per protocol and the dose amount shown right in the notification. • Cycles: run on/off schedules (weeks on, weeks off) with reminders that follow the cycle automatically. (free account) • Titration / warm-up: ramp a dose up or down over time, with a reminder for each step. (free account) • Custom interval reminders: schedule doses every X days and keep long-horizon reminders firing on time. (free account) • Review past and upcoming injections in the calendar or list view, with quick swipe actions to edit or delete. • Serum Concentration Insights: visualize past and future concentration curves, see percent-of-peak and remaining dose, and review pharmacokinetic details for select medications. • Blend protocols: create protocols for multi-peptide vials, see the per-ingredient dose breakdown for every injection, and get concentration insights for each individual constituent. • Medication Glossary: browse details for all supported medications in one dedicated view. • Your data, your control: export everything to CSV and delete your account and data anytime. • Available in English and German.

Screenshots

Peptide Calculator・Tracker4 screens
Injectly4 screens

Verdict

The call

The clearest difference is review sentiment: Injectly at 89% against Peptide Calculator・Tracker's 46%. Injectly also leads on rating (4.9 vs 4.4) and in-app purchases (none vs 5). On price, ratings volume, device support and iOS requirement 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 Calculator・Tracker sells 5 in-app purchases, starting at $4.99 per month. Injectly asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Injectly holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 553 and 392 respectively. Written reviews point the same way: 46% of Peptide Calculator・Tracker's written reviews are positive against 89% of Injectly's.

UpkeepUpdate frequency

Peptide Calculator・Tracker ships an update every 4 months, Injectly every 2 weeks. The most recent releases landed on September 21, 2026 and September 25, 2026 respectively.

Scorecard6 real differences · 4 level
Peptide Calculator・Tracker versus Injectly: the parameters behind the verdict, then further details
ParameterPeptide Calculator・TrackerInjectly
PriceFreeFree
Rating4.4 (553 ratings)4.9 (392 ratings) — better
Positive reviews46.2% of reviews88.9% of reviews — better
Number of ratings553 — better392
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size140 MB45 MB
Age rating12+17+
DeveloperZipoAppsMatthias Gattermeier

Customer experience

Peptide Calculator・Tracker

All ratings553 ratings
Positive82.5%
Neutral6.3%
Negative11.2%
Written reviews52 reviews
Positive46.2%
Neutral7.7%
Negative46.2%

Injectly

All ratings392 ratings
Positive98.2%
Neutral1.3%
Negative0.5%
Written reviews45 reviews
Positive88.9%
Neutral11.1%
Negative0.0%

Bugs and requests

Peptide Calculator・Tracker

Reported bugs

5 issues
  • App won't open
  • Desired dose option broken for MG
  • Calculation between mcg and mg show different results
  • Does not recognize 30 unit needle, only 100
  • Draw result not shown after calculation

Requested features

5 requests
  • Add option for mcg or mg for desired dose
  • Include an information library on various peptides
  • Improve contrast for users with vision problems
  • Clarify wording for 'vial contains X doses'
  • Allow users to try the app before reviewing/paying

Injectly

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Peptide Calculator・Tracker

Subscriptions4
  • Peptide Calculator Monthly$4.991 Month
  • Pro Package$4.991 Year
  • Peptide Yearly Trial3 Days trial$9.991 Year
Show 1 more
  • Peptide Calculator$9.991 Year
One-time1
  • LifeTime Plan$29.99
None

Injectly

No in-app purchases

Questions

Is Peptide Calculator・Tracker free?
Peptide Calculator・Tracker is free to download, with in-app purchases available.
Is Injectly free?
Injectly is free to download, with no in-app purchases.
Which has better reviews, Peptide Calculator・Tracker or Injectly?
Injectly is rated higher. Peptide Calculator・Tracker averages 4.4 out of 5 from 553 ratings, while Injectly averages 4.9 from 392 ratings.
Do Peptide Calculator・Tracker or Injectly have ads?
Peptide Calculator・Tracker shows ads; Injectly does not.
Which is updated more often, Peptide Calculator・Tracker or Injectly?
Peptide Calculator・Tracker ships an update every 4 months, and Injectly every 2 weeks. Most recently, Peptide Calculator・Tracker was updated on September 21, 2026 and Injectly on September 25, 2026.

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