Reta vs Stackr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reta
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TRACK YOUR TRANSFORMATION RETA is the first app designed specifically for retatrutide users. Whether you're taking retatrutide, Ozempic, Wegovy, Mounjaro, Zepbound, or other GLP-1 medications, Reta provides everything you need to track your journey in one beautiful, supportive companion. NEVER MISS A DOSE - Smart weekly injection reminders - Track dose amounts and injection sites - Log notes for each dose - See your complete medication history VISUALIZE YOUR PROGRESS - Beautiful weight tracking charts - Monitor weight loss trends over time - Track total pounds lost and percentage - See progress by dose cycle MONITOR YOUR HEALTH - Weekly side effect check-ins - Track common GLP-1 side effects: nausea, fatigue, appetite changes, and more - Rate severity and add detailed notes - Identify patterns with visual charts - Share comprehensive reports with your doctor NUTRITION & WELLNESS - Daily calorie logging - Track macros: protein, carbs, and fats - Water intake monitoring - Correlate nutrition with weight changes - Build healthy habits alongside medication SEAMLESS APPLE HEALTH INTEGRATION - Sync weight data automatically - Import activity and exercise data - Export medication logs - Keep all your health data in one place PRIVACY FIRST - Your data stays on your device - Secure iCloud sync (your private iCloud only) - We never sell your data to third parties - No account required - Full control over your information WHY RETA? Retatrutide is a revolutionary triple GIP/GLP-1/glucagon agonist showing promising results in clinical trials. While other apps are built for general GLP-1 medications, Reta was designed from the ground up with retatrutide in mind—though it fully supports all GLP-1 medications. BUILT FOR YOUR SUCCESS - Clean, warm, supportive design - No overwhelming features—just what matters - Evidence-based metrics - Regular updates and improvements Questions or feedback Contact us at support@retatrack.health Privacy Policy Here: https://retatrack.health/privacy
Stackr
Easily track supplements, peptides, and medications to ensure you never miss a dose or run out. Features include a compound library, reconstitution calculator, depletion tracking, and budget management.
- 200+ compound library
- Reconstitution calculator
- Depletion tracking
- Protocol grouping
- Budget tracking
- Dose logging
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Track your peptides, GLP-1s, and supplements without a spreadsheet. Start free — no account, no ads, no tracking. Stackr tells you exactly when to reorder, factoring in shipping time, so you never run out mid-protocol. FREE TO START Track up to 3 items free. No account required. Your data stays on your device. NEVER RUN OUT • Depletion tracking with color-coded urgency — see days remaining at a glance • Reorder alerts that factor in your vendor's shipping time • Restock history and reorder logging NEVER OVERPAY • Cost per dose, daily spend, and annual run-rate • Track what each vendor actually costs you RECONSTITUTION CALCULATOR • Vial size + BAC water + target dose → exact syringe markings • U100, U40, and standard mL syringes • Pre-mixed vials too (TRT, HCG) — enter mg/mL and go • Saves your calculations to the item PROTOCOLS THAT MATCH REAL LIFE • Injection-day scheduling and multi-compound protocols • Titration schedules — ramp your dose week by week • Cycling support with on/off day tracking • Injection site rotation LOG IT IN SECONDS • One-tap dose logging with automatic inventory decrement • 100+ compound library with autocomplete • Energy, mood, sleep, and recovery check-ins • Export everything to CSV PRIVATE BY DEFAULT Everything is stored on your device. No account needed. We don't sell your data, show ads, or track you across other apps. Optional cloud backup uses your email only — protected by row-level security so only you can read your own data. STACKR PRO Unlimited items, cloud sync across devices, titration schedules, cycling, custom alert thresholds, full restock history, vendor links, and CSV export. • Monthly: $4.99/month • Annual: $39.99/year (includes 3-day free trial) Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple ID account settings. Stackr is a personal tracking tool and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement, medication, or protocol. Terms of Use: https://www.mystackrapp.com/terms Privacy Policy: https://www.mystackrapp.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Reta at none against Stackr's 2. Stackr's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and ads 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. Stackr sells 2 in-app purchases, starting at $4.99 per month. Reta asks for nothing beyond the download.
| Parameter | Reta | Stackr |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | — | Every 4 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 14 MB | 53 MB |
| Age rating | 4+ | 12+ |
| Developer | Martini Holdings LLC | Alexander Hoogland |
In-app purchases
Reta
No in-app purchases
Stackr
- Stackr Pro Monthly3 Days trial$4.991 Month
- Stackr Pro Annual3 Days trial$39.991 Year









