COMPOUND vs Stackr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
COMPOUND
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COMPOUND is the all-in-one tracking app built specifically for competitive bodybuilders. No fluff. No generic fitness templates. Every feature is designed for athletes who take their prep seriously. TRAINING Log every set, rep, and RPE. Track personal records automatically. View weekly volume per muscle group. Build custom workout templates or start from preset programs. Swipe to repeat sets. Auto-starting rest timer between sets. Estimated 1RM tracked over time with Epley, Brzycki, and Lombardi formulas. NUTRITION Track calories and macros. Log meals across Breakfast, Lunch, Dinner, and Snacks. Set targets by diet phase — Bulk, Cut, Maintenance, Refeed, or Peak Week. Quick-add foods by name and calories. Save meal templates for one-tap logging. Track water and sodium intake. Carb cycling support built in. CYCLE & SUPPLEMENT TRACKER The feature no mainstream app offers. Build custom cycles with any compounds you use. Set per-week dosing schedules. Visual timeline showing all compounds across your cycle. PCT planner. Auto-generated dosing reminders. Missed dose compliance tracking. Separate supplement stack with daily check-off. BLOODWORK LOG Log bloodwork results with pre-loaded markers: Testosterone, Estradiol, LH, FSH, Hematocrit, Hemoglobin, LDL, HDL, ALT, AST, and more. Add custom markers. View results graphed over time. Flags alert you when markers trend out of range across consecutive tests. HEALTH MARKERS Daily logging for body weight, blood pressure, resting heart rate, and steps. Weight graphed over 14 days on your dashboard. BMI calculated automatically. PROGRESS PHOTOS Six standard poses: Front Relaxed, Front Double Bicep, Back Relaxed, Back Double Bicep, Side Chest, Side Tricep. Compare check-ins side by side. TOOLS Built-in calculators: 1RM, TDEE, BMI, Macro Split, Wilks Score, Body Fat Estimate, Water Intake, Plate Calculator, RPE to RIR, Max Heart Rate, Caffeine Timing, Volume Load, and Rest Timer. COMPOUND PRO Free users get full workout logging, calorie tracking, cycle builder, dosing reminders, and basic health markers. Upgrade to Pro for full macro tracking, extended graph history, competition prep tools, meal templates, carb cycling, sodium tracking, unlimited workout templates, and more. $59.99/year with a 7-day free trial. Built by Enhanced Human. Terms of Use: https://enhancedhuman.github.io/compound-privacy/terms.html Privacy Policy: https://enhancedhuman.github.io/compound-privacy
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 iOS requirement: COMPOUND at 15.1 against Stackr's 17.0. On price, ads, in-app purchases 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
Both are free to download. COMPOUND sells 1 in-app purchase, starting at $39.99 per year 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.
| Parameter | COMPOUND | Stackr |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (174 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | — | 174 — better |
| Update frequency | — | Every 4 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 35 MB | 88 MB |
| Age rating | 4+ | 12+ |
| Developer | Arav Ahuja | Stackr Holdings LLC |
In-app purchases
COMPOUND
- COMPOUND Pro7 Days trial$39.991 Year
Stackr
- Stackr+ Weekly$7.997 Days
- Monthly$12.991 Month
- Stackr+ Yearly$29.991 Year
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- Stackr+ Yearly$49.991 Year
- Stackr+ Yearly3 Days trial$49.991 Year
- Stackr+ Yearly$59.991 Year
- Yearly3 Days trial$69.991 Year









