Comparison

KetOne vs FastMode

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

Head to head
About

KetOne

Features
Read full description

Ketone – Easy Fast Intermittent Fasting Tracker Ketone is an easy fast intermittent fasting tracker designed to help you plan fasting schedules, track activity, and organize nutrition in one simple app. Instead of juggling multiple tools, Ketone works as a complete fasting and metabolic tracking system built for long-term consistency. Whether you are new to fasting or looking for advanced intermittent fasting tools for diet planning, Ketone helps reduce guesswork and daily friction. INTERMITTENT FASTING MADE SIMPLE Ketone works as a fasting timer and fast tracker supporting popular protocols: 16:8 intermittent fasting OMAD Alternate-day fasting Custom fasting schedules The fasting timer is easy to use and designed for daily adherence, making Ketone a practical fasting tracker free users can start with and upgrade over time. FASTING TRACKER WITH SMART ACTIVITY SUPPORT Unlike basic fasting apps, Ketone connects your fasting timer with physical activity tracking. The app helps you plan HIIT or interval-style workouts during fasting windows and organizes recovery-focused nutrition afterward. This makes Ketone more than a fasty fasting tracker or basic fasten app — it supports fasting as part of a complete routine. MEAL PLANNING & FASTING TOOLS Ketone includes intermittent fasting tools for diet planning with AI-assisted meal suggestions focused on ketogenic and low-carb nutrition. Meals are planned around your fasting schedule and recent activity, helping you stay consistent without manual calculations. TRACK EVERYTHING IN ONE FASTING APP Ketone combines features often spread across multiple apps: Fasting tracker and fasting timer Calorie and macro tracking Water fasting app features with hydration reminders Weight and body measurement tracking Activity and workout tracking All data works together to help you stay consistent over time. APPLE HEALTH & DEVICE INTEGRATION Ketone integrates with Apple Health to sync activity, workouts, and health data. iPhone Daily fasting tracker Fast logging and notifications Apple Watch Fasting status at a glance Workout and heart rate tracking Hydration reminders iPad Weekly planning and fasting overview Meal prep and routine visualization BUILT FOR CONSISTENCY Ketone focuses on adherence instead of short-term dieting. Progress is tracked through completed fasting cycles, streaks, and routine consistency — not just hours fasted. WHO THIS FASTING APP IS FOR Users looking for an easy fasting tracker Anyone searching for a fasting app free to start Fans of apps like Zero fasting tracker, Fastic, BodyFast, EasyFast, Fasten, or Fasty People practicing intermittent fasting or water fasting Busy users who want one simple fasting tracker instead of multiple apps IMPORTANT NOTICE Ketone is designed to support fasting routines and general wellness. It does not provide medical advice. Always consult a healthcare professional before starting fasting, water fasting, or dietary changes. You can check our Terms of Use here : https://ketone.fit/terms-of-use

About

FastMode

This app simplifies intermittent fasting with an easy-to-use timer and progress tracking. Monitor your fasting schedule, view statistics, and earn badges to stay motivated on your health journey.

Highlights
  • Simple fasting timer
  • Flexible fasting schedules
  • Progress statistics
  • Milestone badges
  • Apple Health integration
  • Dark mode
Features
Read full description

Start your intermittent fasting journey with FastMode - the simplest fasting tracker to help you reach your goals. Whether you’re new to fasting or already experienced, FastMode makes it easy to track your fasting schedule, monitor your progress, and stay motivated. Why FastMode? Simple and clear - no complicated menus or confusing options. Start your timer, track your progress, achieve your goals. Flexible fasting - choose your own schedule or use popular methods like 16:8, 18:6, or OMAD. Customize it the way you want. Insight into your progress - view detailed statistics, track your longest fasts, and see how many hours you’ve fasted. Celebrate your successes - earn milestone badges when you reach important goals and build your streak. Key Features: • Simple timer - start, pause, and end your fast with one tap • Complete history - see all your fasting sessions in one overview • Apple health • Apple watch • Extensive statistics - total hours fasted, average fasting time, and more • Milestone system - earn badges for special achievements • Dark mode - comfortable use at any time of day • Privacy first - all your data stays safe on your device Perfect for: • Beginners who want to start intermittent fasting • Experienced fasters who want to track their schedule • Anyone looking for a reliable, simple fasting tracker Download FastMode now for free and discover how easy fasting can be! --- FastMode Pro Subscription - Monthly: €2.99 / month - Yearly: €29.99 / year Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage and cancel your subscription in your Apple ID account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getfastmode.com/privacy

Screenshots

KetOne4 screens
FastMode4 screens

Verdict

The call

The clearest difference is update cadence: FastMode at every 3 days against KetOne's every 2 months. FastMode also leads on iOS requirement (15.1 vs 18.2). 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. KetOne sells 2 in-app purchases, starting at $19.99 per 3 months and FastMode sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

KetOne ships an update every 2 months, FastMode every 3 days. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 7 level
KetOne versus FastMode: the parameters behind the verdict, then further details
ParameterKetOneFastMode
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.215.1 — better
Further details — not scored
Size73 MB39 MB
Age rating4+17+
DeveloperOriana Isabel Leal RamosBart Goutbeek

In-app purchases

2 purchases

KetOne

Subscriptions2
  • Reset Cycle$19.993 Months
  • Mastery Cycle$44.991 Year
2 purchases

FastMode

Subscriptions2
  • FastMode Pro Monthly$2.991 Month
  • FastMode Pro Yearly$24.991 Year

Questions

Is KetOne free?
KetOne is free to download, with in-app purchases available.
Is FastMode free?
FastMode is free to download, with in-app purchases available.
Do KetOne or FastMode have ads?
Neither KetOne nor FastMode shows ads.
Which is updated more often, KetOne or FastMode?
KetOne ships an update every 2 months, and FastMode every 3 days. Most recently, KetOne was updated on October 13, 2026 and FastMode on October 6, 2026.

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