Top 15 Free Intermittent Fasting Apps (No Subscription Required) for 2026

Intermittent fasting (IF) has become one of the most searched eating patterns in the world — not because it’s a diet, but because it isn’t one. IF doesn’t change what you eat; it changes when you eat. That timing-only approach is exactly why apps are so useful here: the hard part of intermittent fasting isn’t willpower about food; it’s tracking a clock.

What Are Intermittent Fasting Apps?

Intermittent fasting apps are mobile applications that help you follow a fasting schedule, track your eating window, monitor progress, and build consistent habits. The best ones support popular methods like 16:8, 18:6, OMAD, and 5:2 and typically include a fasting timer, meal tracking, hydration reminders, weight progress tracking, and personalized insights.

If you’re building a broader health-tracking stack, a fasting app pairs well with a dedicated fitness tracker or a calorie tracking app. And if you’re curious what goes into building an app like these yourself, here’s our list of top mobile app development companies.

The most common fasting schedules:

• 16:8 — fast for 16 hours, eat within an 8-hour window
• 18:6 — a slightly stricter version of 16:8
• 5:2 — eat normally five days a week, limit intake to 500–600 calories on the other two
• 20:4 (Warrior Diet) — a 4-hour eating window
• OMAD (One Meal a Day) — roughly 23 hours fasted, one meal in the remaining window

Quick Answer: Best Free Intermittent Fasting Apps

• Best free overall: Zero — the deepest free feature set (timers, mood tracking, fasting library) before you hit the paywall.
• Best with no subscription required at all: Vora — community-driven progress tracking with no paid tier to push you toward.
• Best for iPhone: Zero, Fastic, and Vora — all iOS-native with Apple Health sync.
• Best for Android: BodyFast, Fastic, and FastHabit — strongest Android feature parity of the group.
• Best for weight loss specifically: BodyFast and DoFasting — both pair fasting schedules with weight and habit tracking rather than a bare timer.

Quick Comparison of the Best Free Intermittent Fasting Apps

Are These Apps Really Free? No-Subscription vs. Freemium

Most “free” intermittent fasting apps are freemium: the timer and basic tracking cost nothing, and a subscription unlocks coaching, recipes, or advanced analytics. That’s a fair model, but it’s worth knowing which is which before you commit.

Genuinely free, no paywall on the core app:

Easy Fast, Vora, and BodyFast all give you the full fasting-tracking experience with no forced subscription. Easy Fast in particular has no paid tier at all — everything is unlocked from install. Vora and BodyFast are free at the core, with optional paid add-ons (Vora’s extra tracking, BodyFast’s coaching).

Free to start, with a paid tier for advanced features:

Zero, Window, Fastic, DoFasting, and FastEasy all follow the freemium model — free for the fasting timer and basic tracking, paid for coaching, meal plans, or deep analytics.

If a subscription-free experience is a hard requirement, start with Easy Fast, Vora, or BodyFast before trying an app that leads with an in-app purchase prompt.

Best Free Intermittent Fasting Apps by Platform

Best for iPhone: Zero, Fastic, and Vora — all sync with Apple Health, and Zero and Fastic support Apple Watch complications.

Best for Android: BodyFast, Fastic, and FastHabit have the most complete Android feature sets in this list.

Available on both: Zero, Window, Fastic, BodyFast, DoFasting, FastHabit, Ate Food Diary, Simple, Clear, FastEasy, and IF: Intermittent Fasting 16:8.

iOS-only in this list: Vora, Easy Fast, and Rhythm.

Best Free Intermittent Fasting App Reviews

1. Zero—Best Overall Free Fasting App

Zero includes the fullest free feature set on this list: fasting timers, an in-app journal, a mood graph, and a library of articles on fasting, hydration, and sleep.

Features:

• Fasting timer with multiple schedule presets
• Mood tracking graph alongside fasting history
• Educational content on fasting science
• Apple Watch and Apple Health sync

Zero Plus is $69.99/year and adds full coaching guidance on top of the already-solid free tier.

Android | iOS

2. Window

Window schedules your eating windows and alerts you when they open and close, syncing directly with Apple Health.

Features:

• Manual or preset fasting-window scheduling
• Smart notifications
• Diary with photo and recipe notes
• No ads on the free tier

Window Plus is $9.99/month and unlocks additional fasting plans, unlimited weight tracking, and progress photos.

Android | iOS

3. Fastic

Fasting is only half the picture — Fastic pairs your timer with over 400 recipes built around whole-food ingredients, plus a step counter.

Features:

• Body-status tracking through fasting stages
• Water tracker with reminders
• Step counter
• No ads, syncs with Google Fit

Fastic Prime is $11.99/month and unlocks the full recipe library and daily challenges.

Android | iOS

4. Fastient

Fastient is a journal-first fasting tracker — you log your fast alongside symptoms, mood, and weight, and can edit past entries to see how far you’ve come.

Features:

• Home screen summary of weight, fasting time, and progress
• Visual completion bar for active fasts
• Journal for thoughts and cravings
• Customizable fast start times

Premium is $4.99/year — one of the cheapest upgrades on this list.

Android

5. BodyFast — Best for Weight Loss

BodyFast gives you 10 different fasting plans plus structured meal-planning guidance, making it a strong pick if you want more direction than a bare timer.

Features:

• 10+ fasting plan options (16:8, 5:2, and more)
• Weight and measurement tracking
• Fasting-stage explainer showing what’s happening in your body
• Water tracker and Apple Health connectivity

The core app — including all fasting plans and tracking — is free. Apps like BodyFast draw on behavior-based coaching models similar to how Noom applies the same psychology to long-term habit change. 

Android | iOS

6. Vora — Best for a Truly Subscription-Free Experience

Vora’s defining feature is its community: research on habit change consistently shows social accountability improves follow-through, and Vora’s 300,000+ user base leans into that.

Features:

• Support for nearly any fasting method (16:8, 5:2, Warrior Diet, Eat-Stop-Eat, and more)
• Seven-day fasting history in graph form
• Community feed for progress updates
• No subscription required for core functionality

An optional $4.99 upgrade adds extra tracking options and coaching advice — it’s optional, not a gate. 

iOS

7. DoFasting

DoFasting bundles 7 fasting plans, over 5,000 recipes, and workout videos into one subscription—closer to a full fitness program than a standalone timer.

Features:

• Personal fasting coach and step/water tracking
• Fitbit and phone health-app syncing
• Curated educational content library
• Trainer-designed workout plans

Subscriptions start around $33/month, available as monthly, 3-month, or 6-month packages. 

Android | iOS

8. FastEasy

FastEasy (built by Welltech, the team behind BodyFast) is free to download and includes fasting-plan setup, a water tracker, weight-loss statistics with a calendar view, and Apple HealthKit integration.

Features:

• Ready-to-follow fasting plans
• Water and hydration tracker
• Weight-loss statistics with calendar navigation
• AI-personalized recipe suggestions (subscription required)

Advanced plans and recipes require a subscription; pricing varies by region and promotion, so check the current rate in-app before subscribing. 

Android | iOS

9. FastHabit

FastHabit keeps things simple — set your fasting window and go, with no subscription wall for the core scheduling and reminder tools.

Features:

• Percent-complete and time-remaining tracking
• Pause, restart, or adjust your fast anytime
• Apple Watch integration and Apple Health sync
• 10-day fasting-streak snapshot

Premium is $2.99 for deeper stat tracking. Android | iOS

10. Easy Fast — 100% Free, No Subscription

Easy Fast is a privacy-first intermittent fasting tracker that supports every major protocol — OMAD, 16:8, 18:6, 20:4, and custom windows — with no account or sign-up required to use it.

Features:

• Every fasting protocol included; no premium upgrades needed
• Apple Watch complications and home-screen widgets
• Smart reminders to start and end fasts
• Tracks weight, water, glucose, ketones, and body measurements
• Private fasting groups for accountability
• Detailed charts and fasting-stage insights
• No ads, no account, no paywall

Unlike most apps on this list, Easy Fast has no subscription tier at all — every feature is free.

iOS

11. Ate Food Diary

A visual food diary that pairs well with any fasting app above — built around photographing meals rather than logging macros, with a simple way to see how food choices relate to mood.

Features:

• Photo-based meal logging
• Water, activity, and mood tracking
• Custom Q&A journaling per meal
• Automatic fasting tracking (16:8)

Core tracking is free; premium is $9.99. 

Android | iOS

12. Simple

Simple builds a personalized fasting plan based on your goals, with professional guidance and Apple Health sync for weight, sleep, steps, and water.

Features:

• Custom fasting protocol setup
• One-tap start/stop with reminders
• Food diary for mindful eating
• Multiple plan options: 5:2, 18:6, 20:4, 14:10, OMAD, Circadian Rhythm Fasting

Core tracking is free; Simple Premium is $14.99 and adds personalized insights and deeper plan tracking. Android | iOS

13. iFasting

iFasting includes a mood/emotion journal, daily weight logs, reminders, and a calendar to track changes over time.

Features:

• Emotion and weight journal
• Reminders and calendar tracking
• Free core tracking

Premium is $9.99/month and adds customized fasting plans and a nutrition manual. Android

14. Clear

Clear reminds you when your eating and fasting windows open and close, with the developers regularly publishing new fasting plans.

Features:

• Window open/close reminders
• Regularly updated fasting programs
• Free core tracking

Premium is $2.99/month. 

Android | iOS

15. Rhythm

Rhythm keeps it minimal: pick your IF variation, set a daily fasting goal, and track progress — notably, it stops sending notifications once you hit your goal instead of continuing to push engagement prompts.

Features:

• Multiple IF variation presets
• Goal-based tracking that stops nagging once you’re done
• Fully free

iOS

16. IF: Intermittent Fasting 16:8

IF is built around pairing your fasting schedule with nutrition — it includes an AI food scanner for calorie and macro tracking, plus recipes tailored to specific diets including keto and low-carb.

Features:

• 40+ fasting plan presets
• AI food scanner for calorie and macro tracking
• Recipes filtered by diet type (keto, low-carb, vegan, vegetarian, pescatarian) and food allergies/intolerances
• Fasting-stage indicator showing what’s happening in your body during the fast
• Daily coaching prompts

Free to download and use for core fasting tracking; full access to the food scanner and personalized recipe plans requires an in-app purchase.

Android

Which Free Fasting App Is Best for Weight Loss?

If weight loss—not just fasting-window tracking—is the actual goal, look for apps that pair the fasting timer with weight logging, progress graphs, and structured plans rather than a bare countdown clock:

• BodyFast — 10 structured fasting plans plus meal-planning guidance, more direction than a timer alone
• DoFasting — fasting plans combined with calorie tracking, step counting, and workout videos
• Fastic — step tracking and a large recipe library, useful when diet composition matters as much as timing

Whichever app you choose, results depend more on consistency and overall diet than on any single app’s feature set — the app’s job is to make the schedule easy to stick to, not to do the work for you.

Benefits of Intermittent Fasting

Simplifies your day. No early-morning meal prep or decision fatigue about what to eat and when — IF removes several daily decisions at once.

Supports metabolic health. Time-restricted eating patterns are associated with improved insulin sensitivity and metabolic markers, alongside consistent, sustainable weight management for many people.

Easier to sustain than traditional dieting. Instead of counting every calorie or restricting specific foods, IF only changes the timing of meals — which many people find easier to stick with long-term.

Helps preserve muscle mass while cutting fat. Compared with continuous calorie restriction, intermittent fasting is associated with better fat loss outcomes relative to muscle loss in several studies, though individual results vary with training and diet quality.

Builds consistent eating habits. A defined eating window naturally curbs late-night snacking and unplanned grazing, without needing to track every gram of food.

How Much Does It Cost to Build a Fasting App?

Intermittent fasting apps remain one of the most consistently downloaded categories in health and fitness. Building one from scratch typically costs between $25,000 and $200,000, depending on feature scope — a barebones timer-and-tracker sits at the low end, while a full platform with personalized plans, recipe libraries, wearable integration, and coaching sits at the high end. Hiring an experienced app development team is the main lever on both cost and outcome, since pricing varies significantly based on project specifications.

If you’re evaluating a broader wellness platform rather than a single-purpose tracker, see our breakdown of fitness app development costs and must-have fitness app features for 2026.

Recommended: How much time does it take to build a mobile app?

Conclusion 

All 16 apps above offer a genuinely usable free tier, so the right pick comes down to platform, whether you want a subscription-free experience or don’t mind an optional upgrade, and how much structure you want beyond a basic timer. Zero and Vora are the best starting points if you want the most capable free experience with no pressure to upgrade; BodyFast and DoFasting are a better fit if weight-loss structure matters more to you than staying subscription-free.

Frequently Asked Questions (FAQs)

Are there truly free intermittent fasting apps with no subscription required?

Yes. Easy Fast, Vora, and BodyFast’s core app all work fully without any subscription—Easy Fast has no paid tier at all. Zero, Fastic, Window, and several others use a freemium model—the timer, tracking, and fasting history are free, and a subscription unlocks coaching, recipes, or advanced analytics.

What are the best free intermittent fasting apps for iPhone and Android in 2026?

For iPhone: Zero, Fastic, and Vora, all of which sync with Apple Health. For Android: BodyFast, Fastic, and FastHabit have the most complete Android feature sets. Zero, Window, Fastic, BodyFast, DoFasting, FastHabit, Ate Food Diary, Simple, Clear, FastEasy, and IF: Intermittent Fasting 16:8 are all available on both platforms.

Is the Zero app free?

Yes—you can download Zero for free and use standard fasting-timer features immediately. Zero Plus ($69.99/year) unlocks full coaching and advanced statistics.

Is FastEasy free?

Yes, FastEasy is free to download and use for basic fasting tracking. A subscription is required to unlock advanced fasting plans and AI-personalized recipes; pricing varies by region.

Is the Simple app free?

Simple’s core fasting tracker — setting your schedule, logging your fast, and basic Apple Health sync — is free. Simple Premium ($14.99) adds personalized insights and deeper plan tracking.

Is IF: Intermittent Fasting 16:8 free?

The core fasting tracker is free to download and use on both Android and iOS. Full access to the AI food scanner and personalized recipe plans requires an in-app purchase.

What’s the best free intermittent fasting app overall?

Zero has the deepest free feature set of any app on this list — timers, journaling, mood tracking, and a fasting-education library — before you hit any paywall.

Which free fasting app is best for weight loss?

BodyFast and DoFasting are the strongest picks — both go beyond a bare timer to include structured plans, weight tracking, and (for DoFasting) calorie and step tracking.

Do these free intermittent fasting apps offer personalized fasting plans?

Yes — BodyFast, Fastic, Simple, and DoFasting all offer fasting schedules customized to your goals and experience level, though the most advanced coaching features are typically gated behind a premium subscription.

Which fasting schedules do most apps support?

Most support 16:8, 18:6, 14:10, 20:4, 5:2, and OMAD (One Meal a Day), plus custom fasting windows you set yourself.

How much weight can I expect to lose with intermittent fasting?

Weight-loss outcomes vary widely by individual, diet quality, and consistency — a fasting app can help you stick to a schedule, but it isn’t a guarantee of a specific result. Anyone with a chronic health condition should check with a doctor before starting.

Uday Shekhawat

Uday Singh Shekhawat has 9+ years of experience covering software architecture, AI/ML development, and technology strategy at GMTA Software. He writes for founders and CTOs evaluating build complexity, technology investment, and vendor decisions — including in regulated industries such as healthcare, where his background in HIPAA-compliant and FHIR-integrated systems informs his perspective on compliance-driven cost factors.