Supplement Tracker vs NextDose.AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Supplement Tracker
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Gulpify is a smart supplement tracker built for people with real supplement regimens — not just a pill reminder. Whether you're managing a doctor-prescribed protocol for Vitamin D deficiency or optimizing a daily stack of 10+ supplements, Gulpify handles the complexity that other apps can't. ONE-TAP DAILY LOGGING See all your supplements grouped by time slot — morning fasted, with breakfast, afternoon, evening. Tap once to log. Done in under 10 seconds. Haptic feedback confirms every dose so you never second-guess whether you logged it. REAL SCHEDULE FLEXIBILITY Daily, weekly, specific days, every N days, split doses, and loading-to-maintenance phase transitions. Gulpify supports how supplements are actually prescribed — not just "take one pill a day." SMART REMINDERS THAT ADAPT Scheduled notifications, missed-dose follow-ups, and smart timing that learns when you actually take your supplements. Weekly adherence digests keep you accountable. Customize alarm sounds and quiet hours so reminders work with your routine, not against it. CO-FACTOR PAIRING GUIDANCE Know that D3 works best with K2 and Magnesium, or that Iron absorbs better with Vitamin C. Get helpful pairing suggestions when setting up your stack — never miss an important co-factor. Food context tips tell you which supplements need a meal and which work best on an empty stomach. SUN EXPOSURE TRACKING Get real-time UV index data and personalized Vitamin D sun exposure guidance based on your skin type, age, location, and live weather conditions. Know exactly when and how long to be outdoors to support your levels naturally — with safety flags for photosensitive conditions and medications. STREAKS & ADHERENCE STATS Current streak, longest streak, 7/30/90-day rolling adherence, per-supplement breakdowns. A color-coded calendar shows your consistency at a glance. Day-of-week and time-slot analytics help you spot patterns — like always missing your evening dose on Fridays. CELEBRATION WHEN YOU'RE DONE Complete all your supplements for the day and Gulpify celebrates with you. Mini stat cards show your streak and adherence highlights. It's a small thing, but it keeps you coming back. PRE-LOADED SUPPLEMENT LIBRARY Vitamin D3, B12, Magnesium, Omega-3, Zinc, Iron, Ashwagandha, CoQ10, Collagen, and 20+ more — all with intelligent defaults for dosage, unit, and timing. Or add any custom supplement your way. IN-APP HEALTH GUIDES Read expert articles on topics like Vitamin D deficiency, the supplement loading phase, types of Magnesium, and how to boost B12 naturally — all without leaving the app. BUILT FOR PRIVACY Your data stays on your device first. Offline-first architecture means Gulpify works without an internet connection. Syncs securely when you're online. — Gulpify is not a medical advice app. It does not diagnose, prescribe, or recommend supplements. It is a tracking and adherence tool that helps you follow through on the regimen you and your doctor decided on. Always consult your doctor or qualified healthcare professional before starting, stopping, or changing any supplement regimen, and before making any medical decisions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
NextDose.AI
Track GLP-1s, TRT, peptides, and other compounds with an AI that analyzes your logged data. Monitor weight loss, hormone levels, and bloodwork with research-backed context. Features include vial scanning, dose calculators, and health integrations.
- Weight & GLP-1 Progress Tracking
- Testosterone & TRT Monitoring
- Bloodwork Analysis & Charting
- AI Research Assistant
- Estimated Pharmacokinetic Curves
- AI Vial Scanner
- Syringe & Reconstitution Calculator
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Track your testosterone, weight loss, GLP-1s, peptides, and any compound, all in one simple app, with an AI that works from your real logged data. NextDose.AI is the all-in-one tracker for anyone running peptides, GLP-1s (semaglutide, tirzepatide), testosterone/ TRT therapy, or any research compound. Scan your vial, snap your bloodwork, and log every shot. Then watch your estimated pharmacokinetic curves update throughout the day. LOSING WEIGHT ON A GLP-1? Log your weekly shot, track your weight, and watch your progress week by week and month by month. Simple and clear, so you always know where you stand and where you're headed. TRACKING TESTOSTERONE OR TRT? Log your protocol and watch your total testosterone, free testosterone, estradiol, and full panel charted over time, right next to your doses. See how your levels move as your protocol changes. YOUR BLOODWORK, MADE CLEAR Snap any lab or blood test and NextDose transcribes your values, charts every marker over time, and flags what's above or below standard reference ranges with plain-language, research-cited context. It organizes and tracks your numbers. It does not diagnose. AN AI BUILT AROUND YOUR STACK This isn't a notes app with a calendar. NextDose's research assistant draws on your logged data plus a large library of peer-reviewed studies. Ask about dosing windows, half-lives, or how compounds interact, and it surfaces the relevant research next to your own numbers. It always cites the research, never prescribes a dose, and points you back to your physician. KEY FEATURES • Weight & GLP-1 Progress. Log your weekly shot, track your weight and body composition, and chart your progress over time. • Testosterone & TRT Tracking. Chart testosterone, estradiol, and your full hormone panel against your protocol. • Bloodwork Analysis & Charting. Snap any lab, auto-transcribe your values, and trend every marker with above and below range flags and research context. • Agentic AI Research Assistant. Grounded in your data and a large peer-reviewed research library. • Estimated Pharmacokinetic Curves. Modeled rise, peak, and clearance for every logged dose, hour by hour. • AI Vial Scanner. Point your camera and the strength and concentration auto-fill. • 100+ Compound Library. Peptides, GLP-1s, TRT, and popular performance compounds, with linked research. • Syringe & Reconstitution Calculator. Enter your concentration and target dose and it converts to syringe units. No math. • Interaction Notes. Surfaces documented interactions reported in the research for compounds you've logged. • Apple Health Sync. Weight, body fat, heart rate, HRV, and sleep. • Recovery Readiness. A daily score blending HRV, resting heart rate, and sleep trends. • Injection Site Rotation. A visual body map tracks your injection history and rotation points. • Morning Briefing. A daily AI summary of your logged doses, trends, and today's schedule. WHO IT'S FOR GLP-1 users tracking weight loss and metabolic progress. Peptide users tracking recovery and longevity. TRT patients tracking testosterone and ancillaries. Athletes and biohackers tracking performance and lab trends. YOUR DATA, YOUR CONTROL Encrypted and private. We never sell your data. Apple Health stays on-device unless you sync. Cancel and delete anytime. NEXTDOSE PREMIUM NextDose Premium unlocks every feature. The annual plan includes a 7-day free trial and is offered at a discount; a monthly option is also available. Subscriptions auto-renew unless canceled at least 24 hours before the current period ends, and you can manage or cancel anytime in your Apple ID settings. NextDose.AI is an educational compound tracker for adults 18+. It is not medical advice and not a substitute for a qualified healthcare professional. We do not sell, prescribe, recommend, or diagnose any compound or lab result. Always consult your physician. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: NextDose.AI at none against Supplement Tracker's 3. NextDose.AI also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). On price, 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
Both are free to download. Supplement Tracker sells 3 in-app purchases, starting at $0.99 per month. NextDose.AI asks for nothing beyond the download.
Supplement Tracker ships an update every 3 weeks, NextDose.AI every 2 days. Both last shipped on October 1, 2026.
| Parameter | Supplement Tracker | NextDose.AI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (9 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 9 — better |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 97 MB | 51 MB |
| Age rating | 12+ | 17+ |
| Developer | Shubham Choudhary | NextDose.AI Inc. |
In-app purchases
Supplement Tracker
- Gulpify monthly premium7 Days trial$0.991 Month
- Premium Yearly Plan14 Days trial$4.991 Year
- Gulpify Life Time Plan$19.99
NextDose.AI
No in-app purchases









