Comparison

Fasting Timer App vs GKI Insights

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

Head to head
About

Fasting Timer App

This app guides users through intermittent fasting to promote weight loss, boost energy, and build healthy habits. It offers customizable fasting plans, smart timers with reminders, and progress tracking tools. Users can also log weight, mood, and habits.

Highlights
  • Customizable fasting plans
  • Smart fasting timer with reminders
  • Progress tracking with charts
  • Weight, mood, and habit logging
  • Expert tips and insights
  • Multiple fasting schedules
Read full description

Transform your body. Unlock your energy. Feel unstoppable. Discover the power of intermittent fasting with the simplest, most effective app to help you reach your best self. Thousands are already losing weight, boosting energy, and building lasting healthy habits—without extreme diets or calorie counting. What you’ll achieve with our app • Burn fat naturally and speed up your metabolism • Gain steady energy and mental clarity • Choose fasting plans for every level, from 12-12 to OMAD • Customize your fasting and eating windows • Access exclusive expert tips and insights Your transformation toolkit • Smart fasting timer with reminders • Motivating progress tracking with charts and trends • Weight, mood & habit logging all in one place Fasting plans available • Beginner: 12-12, 14-10, 16-8 • Intermediate: 18-6, 20-4 • Advanced: OMAD, 22-2, 23-1, extended fasts • Weekly: 5:2, autophagy programs • 28-day challenges to keep you motivated The science behind the change When you fast, your body switches from burning glucose to burning fat. This shift supports weight loss, improves insulin sensitivity, activates cellular repair, and boosts natural growth hormone production—helping you feel healthier, sharper, and more energized. Start your transformation today and discover what you’re truly capable of. Privacy Policy: https://www.enduranceapptitude.com/apps/fasting-timer/privacy-policy EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

GKI Insights

Read full description

GKI Insights makes it effortless to track your Glucose Ketone Index (GKI) and understand your metabolic health. Log your glucose and ketone levels, and get instant GKI scores with clear feedback on your current ketosis state—from low to optimal. Each entry lets you add context like meals, sleep quality, and fasting windows to build a clearer picture over time. Use the dashboard for quick overviews, or explore detailed trends and weekly analysis to see how your choices are affecting your GKI. Built-in AI offers summary insights and recommendations based on your entries—no guesswork, just clarity. Whether you're following keto, intermittent fasting, or managing metabolic health, GKI Insights gives you simple, effective tools to stay on track. Key Features: - Log glucose and ketones in seconds - Automatically calculate your GKI and metabolic state - Add context: last meal, sleep, fasting period, and notes - Visual trends and weekly summaries - AI-generated insights and recommendations Clean, focused design with zero clutter. Please note: the information provided by this app is for informational purposes only and is not a substitute for professional medical advice. Always consult a qualified healthcare provider before making health decisions. Terms of Use: https://gkiinsights.app/terms

Screenshots

Fasting Timer App4 screens
GKI Insights4 screens

Verdict

The call

The clearest difference is device support: GKI Insights at 3 against Fasting Timer App's 1. GKI Insights also leads on iOS requirement (15.1 vs 18.5). On price, ads and in-app purchases 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. Fasting Timer App sells 2 in-app purchases, starting at $0.99 per 7 days and GKI Insights sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
Fasting Timer App versus GKI Insights: the parameters behind the verdict, then further details
ParameterFasting Timer AppGKI Insights
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 weeks—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.515.1 — better
Further details — not scored
Size14 MB24 MB
Age rating4+4+
DeveloperLucas DiazS J BENSON

In-app purchases

2 purchases

Fasting Timer App

Subscriptions2
  • Premium$0.997 Days
  • Premium$2.991 Month
3 purchases

GKI Insights

Subscriptions2
  • GKI Insights+ Monthly$4.991 Month
  • GKI Insights Plus Annual$29.991 Year
One-time1
  • GKI Insights+ Lifetime$79.99

Questions

Is Fasting Timer App free?
Fasting Timer App is free to download, with in-app purchases available.
Is GKI Insights free?
GKI Insights is free to download, with in-app purchases available.
Do Fasting Timer App or GKI Insights have ads?
Neither Fasting Timer App nor GKI Insights shows ads.

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