Milligram vs Guided Fasting
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Milligram
Optimize your health and performance with science-backed data. Track peptide levels, analyze bloodwork, and monitor progress with intelligent insights. Get personalized feedback on your protocol and health metrics.
- Intelligent protocol analysis
- Compound level tracking
- Bloodwork analysis and biomarker flagging
- Comprehensive compound library
- Progress scans for body composition
- Stack analytics and interaction flagging
- Journaling for health metrics
- Reconstitution calculator
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Whether you're optimizing for fat loss, muscle gain, longevity, recovery or anti aging, Milligram is for people who want to take back control of their health protocols with science-backed confidence. Every other tracker gives you a tidier place to write down what you already did. Milligram models what is actually in your system right now. Every dose charted against every half-life. Everything in the stack with info and the database covering over 3,581 references total. Bloodwork read against what you are actually running. And an AI assistant that answers from your real-time numbers, read against a database made specifically for your protocol, not everyday questions. FEATURES Your Protocol: Everything you run, on one screen. Each compound with its own schedule, dose, vial and supply tracked, and the whole protocol read as one picture rather than being scattered across different notes, files and spreadsheets. Dose tracking: Log every dose, whether that's an injectable or an oral supplement - Milligram works with every compound and every dosing route. Reminders arrive on the protocol's schedule and know which compound, which dose and which injection site. Milligram Intelligence: An assistant that already has your stack, your doses, your bloodwork and your Apple Health data loaded. Ask "which doses did I miss this month", "how is my weight tracking against my retatrutide cycle", or "did my IGF-1 move on tesamorelin", and get an answer from your own numbers. Level Buildup: See your compound levels build from each trough to peak. Every dose is charted against the published half-life of your compound, so you know exactly when you've reached the right zone at the right titration, how each dose is keeping you there, and how much a missed dose can actually move the needle. Bloodwork: Upload a PDF or a photo of your labs. Every biomarker is extracted and out-of-range values flagged, then kept where they can be read against the compounds that might be moving them. Compound Library: 202 compounds with mechanisms, dose ranges, half-lives, expected timelines and side-effect profiles, each referenced to clinical sources. Retatrutide, tirzepatide and semaglutide. Testosterone esters, Masteron, Anavar. Tesamorelin, BPC-157, GHK-Cu, MK-677, Ipamorelin and CJC-1295. Creatine, Omega-3 Fish Oil, Magnesium, Zinc, Vitamin D3, and more. AI calorie and nutrition tracking: Scan any meal with your camera. Snap a photo, scan a barcode, or scan a nutrition label and Milligram extracts calories, protein, carbs and fat instantly. Track every meal against your daily targets with a clean macro breakdown. Apple Health: Two-way sync for sleep, HRV, vitals, activity, weight and body composition, so protocol data and health data sit in the same timeline. SUBSCRIPTION AND TERMS Milligram Pro is accessible via an auto-renewing subscription. You may switch off auto-renew in your Apple ID Account Settings. Purchases of subscriptions will be charged using your Apple ID upon confirmation of purchase. Subscriptions renew on a monthly or yearly basis, unless canceled at least 24 hours before the end of the current period. If canceled, subscriptions remain valid until the end of the current period, and any unused portions are not valid for a refund. By signing in with Apple or by purchasing a subscription, you affirm your understanding of the following: Terms of Service: https://milligram.health/terms Privacy Policy: https://milligram.health/privacy Milligram is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent medical conditions or illnesses. Always consult your physician first. All information provided is for general informational purposes only.
Guided Fasting
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Guided Fasting is the simplest way to track your intermittent fast, day by day. START WITH ONE TAP Choose your plan — 16:8, 18:6, 20:4, OMAD, or a custom window — and tap "Start fast". A progress ring shows how long you've gone and how much is left, in real time. YOUR METABOLIC PHASES Track which phase your body is in while you fast: glucose, glycogen, ketosis, and autophagy, with an explanation of what's happening in each one. STREAK AND HISTORY Every completed fast adds to your streak. History keeps every log with a weekly recap — average, record, and a chart across the last 7 days, 30 days, or your entire history. ALSO ON APPLE WATCH Start or break your fast from your wrist, synced instantly with your iPhone. REMINDERS Get notified when your fast ends and when it's time to start the next one, so you never miss it. EXTRA FEATURES Use advanced plans (20:4, OMAD, and custom) whenever you like, add a home screen widget with your live progress, save your streak if you break a fast early, and read the detail behind each metabolic phase — by watching a short ad, always optional and never required to use the app. YOUR DATA STAYS ON YOUR DEVICE Your entire history is stored locally on your iPhone. No account required. AVAILABLE IN ENGLISH AND SPANISH The app automatically detects your device's language, and you can change it manually anytime from Settings. No scales, no diets to follow, no clutter. Just you and your eating window.
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Verdict
The clearest difference is in-app purchases: Guided Fasting at none against Milligram's 4. Milligram's advantage is ads (none vs shown). On price, update cadence, 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. Milligram sells 3 in-app purchases, starting at $17.49 per month. Guided Fasting asks for nothing beyond the download.
Milligram ships an update every 5 days, Guided Fasting every 6 days. The most recent releases landed on October 31, 2026 and October 26, 2026 respectively.
| Parameter | Milligram | Guided Fasting |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (475 ratings) — better | — |
| Positive reviews | 58.5% of reviews | — |
| Number of ratings | 475 — better | — |
| Update frequency | Every 5 days — better | Every 6 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 171 MB | 20 MB |
| Age rating | 12+ | 4+ |
| Developer | Milligram Health Pty Ltd | DAVID VILCHEZ SANCHEZ |
In-app purchases
Milligram
- Milligram Pro2 variants$17.491 Month
- Milligram Pro3 Days trial$49.991 Year
- Milligram Pro3 Days trial$69.991 Year
Guided Fasting
No in-app purchases









