Peptide Tracker & Dosage vs Stackr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Peptide Tracker & Dosage
Easily calculate peptide dosages with this straightforward tool. It helps determine reconstitution ratios and injection volumes based on your inputs. Manage your peptide inventory, track your progress, and review past dosing with helpful features.
- Peptide dosage calculation
- Reconstitution ratio determination
- Injection volume calculation
- Inventory tracking
- Protocol planning
- Activity logging
- Dosing history review
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Peptide Tracker & Dosage keeps your whole peptide routine in one clean, private log: every dose, every vial, every protocol. LOG A DOSE IN SECONDS Record the amount you took, the units you drew, the injection site, and a note. Repeat your last entry with one tap, backdate a dose you forgot, and edit anything later. YOUR DAY AT A GLANCE The Today screen shows what's scheduled from your protocols, what you've already logged, your streak, and your next reminder. VIAL VISION + INVENTORY Point your camera at a vial label and Vial Vision reads the peptide name and amount straight off it. Track doses left and use-by dates, and see at a glance when a vial is running low. PROTOCOLS & REMINDERS Save your schedule once, including multi-step titrations. The app shows which step you're on and reminds you on the days you pick. HISTORY & INSIGHTS A calendar of every dose, an injection-site rotation map, weekly summaries, lab-result uploads, and a PDF export to share with your doctor. AI COACH Ask questions about your routine, grounded in your own log, with tappable sources. You enter every value. The app organizes your records and never recommends a dose. Terms of Service: https://www.notion.so/Heat-Studio-LLC-Terms-of-Service-28652966b06a80028c0deeca197b4912 Privacy Policy: https://marble-liquid-091.notion.site/Heat-Studio-LLC-Privacy-Policy-28652966b06a807282efed41b058f5dd?pvs=74 Dose logging, Today, Activity, Inventory, and Coach are subscription features that require a trial or subscription. This app is by no means a form of medical advice. Consult your physician or primary health provider for all matters of your health.
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.
- 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
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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
Verdict
The clearest difference is review sentiment: Stackr at 67% against Peptide Tracker & Dosage's 38%. Stackr also leads on update cadence (every 4 days vs every 9 days). Peptide Tracker & Dosage's advantage is rating (4.7 vs 4.4) and device support (3 vs 1). On price, ratings volume, 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
Both are free to download. Peptide Tracker & Dosage sells 9 in-app purchases, starting at $2.99 per 7 days 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.
Peptide Tracker & Dosage holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 138 and 191 respectively. Written reviews complicate that: 38% of Peptide Tracker & Dosage's written reviews are positive against 67% of Stackr's, so the app with the better star average is not the one people write more warmly about.
Peptide Tracker & Dosage ships an update every 9 days, Stackr every 4 days. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.
| Parameter | Peptide Tracker & Dosage | Stackr |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (138 ratings) — better | 4.4 (191 ratings) |
| Positive reviews | 37.5% of reviews | 66.7% of reviews — better |
| Number of ratings | 138 | 191 — better |
| Update frequency | Every 9 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 67 MB | 88 MB |
| Age rating | 4+ | 12+ |
| Developer | Heat Studio LLC | Stackr Holdings LLC |
Customer experience
Peptide Tracker & Dosage
Stackr
In-app purchases
Peptide Tracker & Dosage
- Unlimited - Weekly3 Days trial$2.997 Days
- Unlimited - Weekly$2.997 Days
- Unlimited - Monthly$6.991 Month
Show 5 moreShow fewer
- Unlimited - Monthly$9.991 Month
- Unlimited - Monthly$12.991 Month
- Unlimited - Annual$24.991 Year
- Unlimited - Annual$39.991 Year
- Unlimited - Annual3 Days trial$39.991 Year
- Unlimited - Lifetime$59.99
Stackr
- Stackr+ Weekly$7.997 Days
- Monthly$12.991 Month
- Stackr+ Yearly$29.991 Year
Show 4 moreShow fewer
- 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 Tracker & Dosage free?
Is Stackr free?
Which has better reviews, Peptide Tracker & Dosage or Stackr?
Do Peptide Tracker & Dosage or Stackr have ads?
Which is updated more often, Peptide Tracker & Dosage or Stackr?
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