Comparison

GLP vs Fast

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GLP

This app helps individuals on GLP-1 medication track their doses, weight, and daily well-being privately. It offers features like medication logging, weight tracking with Apple Health sync, and journaling with AI-powered calorie estimates. All data is stored locally for maximum privacy.

Highlights
  • Log GLP-1 doses and injection sites
  • Track weight and sync with Apple Health
  • Journal daily feelings and meals
  • AI-powered calorie estimates
  • Daily check-ins for appetite and energy
  • View trends and insights on progress
  • Polaroid-style progress sharing
Features
Read full description

Your GLP-1 routine deserves a tracker that's as simple and private as it should be. Lumi is a privacy-first companion for anyone on a GLP-1 journey — whether you're on Ozempic, Wegovy, Mounjaro, Zepbound, Foundayo, Rybelsus, compounded semaglutide, tirzepatide, or retatrutide, on a daily, weekly, or custom schedule. Log your doses, track your weight, and journal how you feel — all without creating an account or uploading a single byte to the cloud. One-time purchase. $9.99. No subscription. No recurring fees. FAST SHOT LOGGING Log your dose in seconds. Track your medication, dose level, and injection site rotation. Set reminders so you never miss a shot. WEIGHT TRACKING Log weight, track menstrual cycles, and sync with Apple Health. See your progress over time with clear trend charts. JOURNAL WITH CALORIE TRACKING Write about your day — meals, side effects, milestones. Mention food and get automatic calorie estimates powered by on-device AI. Set a daily calorie goal and see your 7-day intake at a glance.* DAILY CHECK-INS Track appetite, energy, and symptoms each day with a quick check-in. Spot patterns over time without complex data entry. TRENDS & INSIGHTS See how your journey evolves with a smart, color-coded weight chart that shows: • Dose levels across each cycle • How your menstrual cycle affects weight • How different doses impact your results Track not just your weight — but how each phase of your GLP-1 journey affects it. POLAROID-STYLE SHARING Turn your progress into shareable moments. Generate polaroid-style cards that combine your weight trend into a clean visual you can share with friends or keep private. ON-DEVICE AI SUMMARIES Get personalized weekly summaries of your progress — generated privately on your device. No data leaves your phone.* PRIVACY BY DESIGN All data stays on your device or your iCloud account. No tracking. No analytics. No accounts. *AI features (calorie estimates and weekly summaries) require Apple Intelligence (iPhone 16+, iPhone 15 Pro, iPhone 15 Pro Max, iPad with M1 chip or later).

About

Fast

Features
Read full description

Can I eat right now? Fast:Protocol checks today's planned eating hours and gives you one clear answer: YES or NO. It also shows when that answer will change, so you can follow your schedule without starting a timer or doing time math. Use Fast:Protocol to: • Set the eating hours you use on a normal day • Create weekly plans for days that follow a different schedule • Change one date without changing the rest of your week • See your current answer, countdown, and next scheduled change • Check Home Screen and Lock Screen widgets • Review previous days and browse the week ahead • Choose reminders for when eating hours begin and one hour before they end Set your schedule once. Check your answer whenever you need it.

Screenshots

GLP3 screens
Fast4 screens

Verdict

The call

The clearest difference is in-app purchases: Fast at none against GLP's 1. Fast also leads on iOS requirement (15.1 vs 17.0). GLP's advantage is update cadence (fortnightly vs every 2 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. GLP sells 1 one-off in-app purchase. Fast asks for nothing beyond the download.

UpkeepUpdate frequency

GLP ships an update fortnightly, Fast every 2 months. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 6 level
GLP versus Fast: the parameters behind the verdict, then further details
ParameterGLPFast
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size2 MB43 MB
Age rating4+4+
DeveloperAppFactor LLCBorche Davchev

In-app purchases

1 purchases

GLP

One-time1
  • Lifetime Access$9.99
None

Fast

No in-app purchases

Questions

Is GLP free?
GLP is free to download, with in-app purchases available.
Is Fast free?
Fast is free to download, with no in-app purchases.
Do GLP or Fast have ads?
Neither GLP nor Fast shows ads.
Which is updated more often, GLP or Fast?
GLP ships an update fortnightly, and Fast every 2 months. Most recently, GLP was updated on October 31, 2026 and Fast on November 5, 2026.

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