Comparison

Fast Slow vs DailyMood

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

Head to head
About

Fast Slow

Understand your body's metabolic changes during fasting with a visual timeline. This free app guides you through different fasting zones, from digestion to deep ketosis, and offers customizable schedules and smart notifications. It provides stats, streaks, and widgets for easy progress tracking.

Highlights
  • Fasting timer with visual timeline
  • 6 customizable fasting schedules
  • 5 distinct fasting zones explained
  • Smart notifications for fasting windows
  • Stats, streaks, and trends tracking
  • Home and Lock Screen widgets
  • Siri Shortcuts integration
Features
Read full description

See what happens inside your body as you fast. Fast Slow walks you through 5 fasting zones, from digestion through fat burning to deep ketosis, so you understand what every hour of your fast is doing. 100% free. Every feature. No ads. No paywalls. No trackers. Free forever. WHAT MAKES FAST SLOW DIFFERENT Most fasting apps just count down a timer. Fast Slow shows you what's actually happening in your body at each stage: - Anabolic (0-4h): Digesting and storing nutrients - Catabolic (4-8h): Tapping into energy reserves - Fat Burning (8-12h): The metabolic switch - Ketosis (12-16h): Ketones and cellular cleanup - Deep Ketosis (16h+): Deep cellular renewal Tap any zone to learn more about the science behind it. 100% FREE. EVERY FEATURE INCLUDED. No premium tier. No trial that expires. No paywall gates. Every feature in Fast Slow is yours from day one: - All 6 fasting schedules - All stats, streaks, and trends - All widgets (Home Screen and Lock Screen) - All notifications - Siri Shortcuts - iCloud sync - Data export Everything free. No catches. FEATURES Fasting Timer One tap to start. One tap to stop. A visual timeline shows where you are, what zone you're in, and what comes next. 6 Fasting Schedules 12:12 for beginners, 14:10, 16:8 (the most popular), 18:6, 20:4, and OMAD (one meal a day) for experienced fasters. Visual Timeline Color-coded timeline of your fasting and eating windows. Plan meals, training, and recovery at a glance. Smart Notifications 7 notification types: goal reached, halfway there, one hour left, eating window alerts, and a custom last meal reminder. Nudges, not nags. Stats & Streaks Total fasts, average duration, personal records, weekly trends, and a monthly fasting calendar. Small wins add up. Widgets Home Screen and Lock Screen widgets with progress rings, timelines, and live timers. Check your fast without opening the app. Siri Shortcuts "Hey Siri, start my fast." Start, stop, and check your fasting status hands-free. AI-Powered Greetings On supported devices, Apple Intelligence creates personalized messages based on your fasting progress, streak, and time of day. iCloud Sync Your fasting data syncs automatically across all your devices. Data You Own Export your fasting history as JSON. Delete everything with one tap. Your data, your choice. DESIGNED FOR REAL LIFE Pick a schedule, adjust as needed, and let Fast Slow handle the timing. New to fasting or already have a routine, it works either way. Structure when you want it, out of the way when you don't. Built by one developer who fasts every day. No corporate agenda. No growth hacking. A well-made tool that respects your time and your data. RESPONSIBLE APPROACH Intermittent fasting can support weight management, energy, and focus, but results vary. Fast Slow provides tools and information, not medical advice. If you have health conditions, are pregnant, or have a history of eating disorders, please talk to a healthcare professional before starting. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://cernezan.com/fast-slow/privacy/

About

DailyMood

Features
Read full description

DailyMood is a simple and powerful mood tracking app designed to help you understand your emotions, build better habits, and improve your mental well-being. Track how you feel in seconds, reflect on your day, and discover patterns that help you grow. Key Features: • Quick Mood Logging Log your mood instantly with simple and intuitive options. • Daily Reflections Add activities, thoughts, and tags to understand what affects your mood. • Insightful Analytics Visualize your emotional patterns and track progress over time. • Habit & Activity Tracking See how habits like sleep, work, fitness, and social life impact your mood. • Minimal & Beautiful Design A calming interface designed to make journaling effortless. • Private & Secure Your data stays yours. No distractions. No noise. Why DailyMood? Understanding your emotions is the first step to improving your life. DailyMood helps you: Reduce stress Build self-awareness Improve mental health Stay consistent with habits Feel more in control of your life Perfect For: Students managing stress Professionals tracking work-life balance Anyone on a self-improvement journey People building daily habits Start your journey today Download DailyMood and take control of your emotions, one day at a time.

Screenshots

Fast Slow4 screens
DailyMood4 screens

Verdict

The call

The clearest difference is in-app purchases: DailyMood at none against Fast Slow's 4. DailyMood also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price and ads 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. Fast Slow sells 4 in-app purchases, starting at $1.99 per 7 days. DailyMood asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Fast Slow versus DailyMood: the parameters behind the verdict, then further details
ParameterFast SlowDailyMood
PriceFreeFree
Rating5.0 (39 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings39 — better—
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size23 MB32 MB
Age rating4+4+
DeveloperZan CerneDeva Vinoth

In-app purchases

4 purchases

Fast Slow

Subscriptions2
  • Legacy$1.997 Days
  • Legacy - Yearly3 Days trial$12.991 Year
One-time2
  • Buy Me a Coffee$2.99
  • You're Amazing$9.99
None

DailyMood

No in-app purchases

Questions

Is Fast Slow free?
Fast Slow is free to download, with in-app purchases available.
Is DailyMood free?
DailyMood is free to download, with no in-app purchases.
Do Fast Slow or DailyMood have ads?
Neither Fast Slow nor DailyMood shows ads.

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