Comparison

Peptide Tracker vs Caliper

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

Head to head
About

Peptide Tracker

This app helps users manage their peptide therapy journey with smart protocol management, progress tracking, and detailed journaling. It offers intelligent analytics, a built-in AI chat assistant, and a user-focused design for optimal organization and motivation.

Highlights
  • Customizable peptide protocols
  • Automatic shot generation
  • Intelligent reminder system
  • Weight loss and muscle growth tracking
  • Detailed journal entries
  • AI chat assistant for therapy questions
Features
Read full description

PeptideKit is a no-nonsense app for anyone serious about their peptide therapy journey. Managing GLP-1 peptides or tracking any other hormone therapy is easier than ever with PeptideKit. It provides the tools you need to stay organized, motivated, and informed. Key Features • Smart Protocol Management Create custom peptide protocols with flexible scheduling (daily, weekly, bi-weekly, monthly, every X days, or custom schedules) Intelligent reminder system with local notifications Track multiple protocols simultaneously with color-coded organization • Comprehensive Progress Tracking Weight Loss Analytics: Track weight changes with detailed charts and statistics — ideal for GLP-1 tracker use cases Muscle Growth Monitoring: Log measurements and strength progress Anti-Aging Metrics: Monitor skin health, energy levels, and vitality markers Hormone Support: Track hormonal balance and related symptoms, including testosterone and other hormone levels Injury Healing: Monitor recovery progress and pain levels Energy & Performance: Log energy levels, workout performance, and stamina Cognitive Support: Track mental clarity, focus, and cognitive function • Advanced Calendar & Commitment Status Interactive calendar with color-coded Commitment status Visual overview of completed, missed, and upcoming injections Monthly Commitment tracking for all protocol frequencies Quick add functionality for manual jab entries • Detailed Journal System Create rich journal entries with dose associations Link specific injections to your daily experiences Track injection sites Search and filter through your therapy history • Intelligent Analytics 7D, 30D, 90D, and yearly progress views Statistical insights and trend analysis Progress charts with customizable date ranges Export capabilities for sharing with healthcare providers Why Choose PeptideKit? • User-Focused Design Intuitive interface designed specifically for peptide and hormone therapy Customizable themes (Light, Dark, System) iPad-optimized with full-screen sheets and navigation • Privacy & Security All data stored locally on your device • Flexibility & Customization Weight tracking in pounds or kilograms Customizable log categories based on your needs Flexible protocol scheduling options • Never Miss a Dose Smart notification system ensures you stay on track with your protocols, whether it's a daily GLP-1 jab or a weekly TRT injection. Receive timely reminders that adapt to your schedule and preferences. Get PeptideKit now — Your Complete Peptide & Hormone Therapy Companion. Medical Disclaimer: The information provided by PeptideKit is for educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendations. Always consult with a qualified healthcare professional before initiating any peptide therapy protocol. Auto-renewable subscriptions EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Caliper

Precisely track GLP-1, peptide, and compound protocols with one-tap logging and visual level curves. Monitor doses, weight, side effects, and progress privately on your device. Includes a reconstitution calculator and provider export.

Highlights
  • GLP-1 & peptide tracking
  • One-tap dose logging
  • Visual compound level curves
  • Weight & BMI trends
  • Side effect logging
  • Private progress photos
  • Reconstitution calculator
Features
Read full description

Caliper is the precise, private way to track your GLP-1, peptide, and compound protocol — every dose, every level, every trend in one place. Log a dose in one tap. Watch what's active in your body build and clear on a clean levels curve. Keep an honest, fully editable record — with gentle reminders so you never lose the thread. WHY CALIPER • See what's active in your body — a curve models each compound across the week from its half-life, so you can watch it build and clear at a glance • One-tap logging — dose, time, and injection-site rotation come ready from your protocol; adjust anything, or backfill a past dose • Reminders that respect you — dose nudges and a weekly check-in, never nagging, never shame TRACK WHAT MATTERS • Doses & schedules — pens, vials, oral, and multi-ingredient blends • Weight & BMI — trends that read clearly at a glance • Side effects — log symptoms and severity over time • Progress photos — private, stored on your device, never uploaded • Injection sites — rotation history and a site heatmap • Supplies — vials, pens and tablets on hand, with expiry and use-by dates TOOLS BUILT IN • History — a full ledger, calendar, and per-compound detail • Insights — patterns and trends from your own data • Provider export — share a clean summary as a PDF • Journey Card — mark a milestone and share it, only if you want PRIVATE BY DESIGN Your data lives on your device. Progress photos never leave it. Sign in to securely back up your record and move to a new phone — nothing more, nothing sold. CALM, FAST, YOURS A precise, uncluttered interface with full Light and Dark mode. No ads. No feed. No noise. A paid subscription is required to access Caliper's tracking features. Caliper organizes and describes the data you enter. It does not provide medical advice and does not recommend a dose, schedule, or outcome. Always follow the guidance of your healthcare provider. Terms of Use: https://getcaliper.app/terms Privacy Policy: https://getcaliper.app/privacy

Screenshots

Peptide Tracker4 screens
Caliper4 screens

Verdict

The call

The clearest difference is monetization model: Caliper at free against Peptide Tracker's subscription. Caliper also leads on rating (5.0 vs 4.7) and review sentiment (100% vs 77%). Peptide Tracker's advantage is ratings volume (310 vs 1). 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 Tracker sells 7 in-app purchases, starting at $3.99 per 7 days and Caliper sells 4 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

Caliper holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Peptide Tracker has 310 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 77% of Peptide Tracker's written reviews are positive against 100% of Caliper's.

UpkeepUpdate frequency

Peptide Tracker ships an update weekly, Caliper every 10 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Peptide Tracker versus Caliper: the parameters behind the verdict, then further details
ParameterPeptide TrackerCaliper
PriceFreeFree
Rating4.7 (310 ratings)5.0 (1 ratings) — better
Positive reviews77.1% of reviews100.0% of reviews — better
Number of ratings310 — better1
Update frequencyWeekly — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS18.616.4 — better
Further details — not scored
Size36 MB43 MB
Age rating12+17+
DeveloperJamal BagaIKIGAI SOFTWARE DEVELOPMENT LLC

Customer experience

Peptide Tracker

All ratings306 ratings
Positive91.8%
Neutral1.0%
Negative7.2%
Written reviews83 reviews
Positive77.1%
Neutral3.6%
Negative19.3%

Caliper

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Peptide Tracker

Reported bugs

3 issues
  • 3 weeks' data disappeared
  • Wiped all my Data
  • Notifications do not work

Requested features

1 request
  • Build a protocol with an indefinite cycling period

Caliper

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Peptide Tracker

Subscriptions6
  • Plus Weekly$3.997 Days
  • Plus Weekly3 Days trial$5.997 Days
  • Plus Monthly$9.991 Month
Show 3 more
  • Plus Yearly3 Days trial$39.991 Year
  • Plus Yearly$39.991 Year
  • Plus Yearly$49.991 Year
One-time1
  • Plus Lifetime$69.99
4 purchases

Caliper

Subscriptions4
  • Caliper$7.997 Days
  • Caliper: GLP-1 Peptide Tracker$12.991 Month
  • Caliper: GLP-1 Peptide Tracker1 Year trial$29.991 Year
Show 1 more
  • Caliper3 Days trial$59.991 Year

Questions

Is Peptide Tracker free?
Peptide Tracker is free to download, with in-app purchases available.
Is Caliper free?
Caliper is free to download, with in-app purchases available.
Which has better reviews, Peptide Tracker or Caliper?
Caliper is rated higher. Peptide Tracker averages 4.7 out of 5 from 310 ratings, while Caliper averages 5.0 from 1 ratings.
Do Peptide Tracker or Caliper have ads?
Neither Peptide Tracker nor Caliper shows ads.
Which is updated more often, Peptide Tracker or Caliper?
Peptide Tracker ships an update weekly, and Caliper every 10 days. Most recently, Peptide Tracker was updated on November 8, 2026 and Caliper on October 31, 2026.

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