Comparison

FastIQ vs GlizzyScan

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

Head to head
About

FastIQ

This app combines intermittent fasting tracking with AI-powered calorie counting. Simply take a photo of your meal for instant logging of calories and macros. It helps you manage fasting schedules, track progress, and learn about nutrition for lasting results.

Highlights
  • AI food logging via photo
  • Intermittent fasting timer
  • Customizable fasting schedules
  • Calorie and macro tracking
  • Weight and progress charts
  • Bite-sized nutrition lessons
Features
Read full description

FastIQ is the intermittent fasting tracker that finally connects your fasting window, your meals, and the science behind both — so you actually understand what your body is doing. FASTING, MADE CLEAR • Start, stop, and edit fasts with a clean timer and flexible eating windows • Watch a live, hour-by-hour view of your metabolic state — from fed state and glycogen depletion to fat burning, ketosis, and autophagy • Choose a schedule that fits your life: 16:8, custom windows, or open-ended fasts • Smart notifications for when your fast starts, ends, and hits key milestones CALORIE & MACRO TRACKING — POWERED BY AI • Snap a photo of your meal and get an instant calorie and macro estimate • Scan a nutrition label or barcode to log packaged food in seconds • See protein, carbs, and fat at a glance with a clean daily macro ring • Search foods or add them manually — AI is optional, you're always in control LEARN AS YOU GO • 30+ bite-sized lessons on fasting, metabolism, macros, and habits • Evidence-informed, plain-English explanations — no hype, no fads • Topics like protein priority, breaking a fast, autophagy, plateaus, electrolytes, and metabolic flexibility PROGRESS YOU CAN SEE • Track weight toward your goal with clear progress visuals • Review your fasting and meal history day by day • Advanced analytics to spot the patterns that work for you FAST TOGETHER • Join a hosted group fast from a shared link and start at the same time, in your own timezone • See who else is fasting right now and cheer them on • A monthly and yearly leaderboard for fasts that hit their own goal • Pick a display name and avatar — your email is never shown PRIVATE & YOURS • Fasting and meal tracking work offline; your log lives on your device • Community features (display name, avatar, cheers, leaderboards, group fasts) sync to our servers so other people can see them — you choose whether to take part, and you can remove your community profile at any time • Optional email sign-in to sync securely across devices • No ads, ever FastIQ Pro unlocks AI photo and label scanning, AI fasting insights, full calorie and macro tracking, and advanced analytics. Start with a free trial, then continue monthly or annually. COMMUNITY STANDARDS FastIQ has zero tolerance for objectionable content or abusive behaviour. Display names are filtered automatically, group fasts can only be hosted by people we have approved, and every profile, host and coach update can be reported or blocked from inside the app. Reports are reviewed within 24 hours and offending content and accounts are removed. Our Community Guidelines are in the app under Settings → Community, and at https://fastiq.fit/community-guidelines. FastIQ is an education and tracking tool, not medical advice. Talk to a qualified healthcare professional before starting any fasting or nutrition program, especially if you are pregnant, nursing, under 18, or managing a medical condition. Fasts longer than 48 hours carry real health risks and are not safe for everyone. Privacy Policy: https://fastiq.fit/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

GlizzyScan

Features
Read full description

Track calories without turning lunch into homework. GlizzyScan combines fast manual food logging with AI-powered meal estimates. Take or upload a meal photo, add a description, or use both together from the same Log Food screen. Your meal is added immediately while its nutrition estimate finishes in the background. Edit any number afterward and save corrected meals for one-tap reuse. Your first five successful AI meal scans are free. WHAT YOU CAN TRACK • Calories, protein, carbohydrates, and fat • Fiber, sugar, sodium, saturated fat, added sugar, and cholesterol • Daily goals, logging streaks, progress, and optional weight trends • Saved Meals and recent foods for quick repeat logging FREE & PRO • Five successful AI meal scans included with every account • Manual logging, Saved Meals, and progress tracking remain available without Pro • Pro unlocks unlimited meal scanning and follow-up AI corrections • Up to 30 AI meal analyses per day PRIVACY BY DESIGN • Choose Apple, Google, or private guest access • Meal-scan consent is handled during onboarding • Photos are sent only when you request an AI estimate • Your diary and meal photos are stored on your device • No advertising or cross-app tracking Nutrition estimates are informational and are not medical advice. Edit estimates before relying on them. LEGAL Privacy Policy: https://xyklabs.com/glizzyscan/privacy Terms of Use: https://xyklabs.com/glizzyscan/terms Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FastIQ4 screens
GlizzyScan4 screens

Verdict

The call

The clearest difference is update cadence: GlizzyScan at daily against FastIQ's fortnightly. FastIQ's advantage is iOS requirement (15.1 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FastIQ sells 2 in-app purchases, starting at $9.99 per month and GlizzyScan sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FastIQ ships an update fortnightly, GlizzyScan daily. Both last shipped on October 28, 2026.

Scorecard2 real differences · 8 level
FastIQ versus GlizzyScan: the parameters behind the verdict, then further details
ParameterFastIQGlizzyScan
PriceFreeFree
Rating4.9 (37 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings37 — better—
Update frequencyFortnightlyDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.0
Further details — not scored
Size91 MB12 MB
Age rating17+4+
DeveloperDaniel NeacsuXYK LLC

In-app purchases

2 purchases

FastIQ

Subscriptions2
  • FastIQ Pro (Monthly)3 Days trial$9.991 Month
  • FastIQ Pro (Annual)3 Days trial$49.991 Year
2 purchases

GlizzyScan

Subscriptions2
  • GlizzyScan Pro Monthly7 Days trial$4.991 Month
  • GlizzyScan Pro Annual7 Days trial$39.991 Year

Questions

Is FastIQ free?
FastIQ is free to download, with in-app purchases available.
Is GlizzyScan free?
GlizzyScan is free to download, with in-app purchases available.
Do FastIQ or GlizzyScan have ads?
Neither FastIQ nor GlizzyScan shows ads.
Which is updated more often, FastIQ or GlizzyScan?
FastIQ ships an update fortnightly, and GlizzyScan daily. Most recently, FastIQ was updated on October 28, 2026 and GlizzyScan on October 28, 2026.

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