Yes – there are several excellent free intermittent fasting apps available for both Android and iOS, and you do not need a paid subscription to get started.
We reviewed the 10 most widely used free intermittent fasting apps in 2026, comparing their free-tier features, fasting timer functionality, platform availability, and ease of use. Whether you’re tracking a 16:8 window or experimenting with extended fasts, the apps on this list give you a solid foundation without requiring you to spend a dollar.
If you want a single recommendation: Zero is the best overall free intermittent fasting app for most users, thanks to its clean timer interface, educational content, and no-cost core features. The full comparison is below.
Best Free Intermittent Fasting Apps – Features & Pricing Comparison
| App | Key Feature | Free? | Premium Price | Platform | Best For |
|---|---|---|---|---|---|
| Zero | Fasting timer + educational content | ✅ Yes | $69.99/year | iOS, Android | Beginners wanting guided fasting |
| Window | Eating window tracker + Apple Health sync | ✅ Yes | $9.99/month | iOS, Android | Apple ecosystem users |
| Fastic | 400+ healthy recipes + step counter | ✅ Yes | $11.99/month | iOS, Android | Nutrition-focused fasters |
| Fasting App (Fastient) | Fasting journal + progress graphs | ✅ Yes | $4.99/year | iOS, Android | Data trackers and journalers |
| BodyFast | 10 fasting plans + meal prep tips | ✅ Yes | Varies | iOS, Android | Structured plan followers |
| FastHabit | Apple Watch sync + simple reminders | ✅ Yes | $2.99 | iOS | Apple Watch users |
| LIFE Fasting Tracker | Ketosis tracking + community support | ✅ Yes | $2.99/month | iOS, Android | Keto + IF combination dieters |
| Ate Food Diary | Visual meal diary + Instagram sharing | ✅ Yes | $9.99 | iOS, Android | Visual learners and social sharers |
| Lasta | Personalized wellness + body tracking | ✅ Yes | Varies | iOS, Android | Holistic health trackers |
| Vora | Community-based fasting tracker | ✅ Yes | $4.99 | iOS, Android | Community-motivated fasters |
List of Best Free Intermittent Fasting App
Here is the list of the best free intermittent fasting apps:
1. Zero: Best Intermittent Fasting App
Zero is the most widely used free intermittent fasting app, and for good reason. The free version includes a fasting timer, mood and energy tracking, a fasting journal, and access to educational articles covering hydration, sleep, and fasting science. It works well whether you’re starting with a 12-hour fast or progressing to a 16:8 or 18:6 schedule.
The premium tier ($69.99/year) adds personalized coaching from a certified health coach, but the free version is fully functional for most users. Zero is available on both iOS and Android.
Platform: iOS and Android
2. Window: The Easiest Intermittent Fasting App
Window is a straightforward intermittent fasting app that focuses on one core task: helping you set and track your eating window. The app notifies you when your eating window opens and closes, and it syncs with Apple Health for iOS users who want their fasting data alongside other health metrics.
The premium version ($9.99/month) adds multiple fasting protocols, daily notes, and photo-based weight tracking. The free tier is sufficient for users who need a reliable eating window timer without additional complexity.
Platform: iOS and Android
3. Fastic: App for Intermittent Fasting
Fastic goes beyond a basic timer by pairing your fast with nutritional support. The free version includes a fasting tracker, a step counter, body metrics logging, and access to over 400 recipes built around whole, nutritious ingredients. This makes it a practical option for people who want to improve their diet alongside their fasting routine.
The premium membership ($11.99/month) unlocks complete recipe libraries, daily motivation features, and a more detailed nutrition plan.
Platform: iOS and Android
4. Fastient: Best Free Fasting Journal App
Fastient is designed for people who want to track their fasting history in detail. The free version lets you log your fasting windows, write journal entries, record meals, and view your progress through simple, readable charts. If you find motivation in tracking streaks and reviewing your history over time, Fastient gives you that structure at no cost.
The premium version ($4.99/year) is one of the most affordable upgrades on this list, making it easy to justify if you want additional reporting features.
Platform: iOS and Android
5. BodyFast: An App to Help You Achieve Your Intermittent Fasting Goals
BodyFast offers ten different fasting plans, making it one of the more structured options on this list. The free version provides access to multiple fasting protocols along with meal preparation advice, which is useful if you’re not sure which fasting schedule fits your lifestyle. The app is designed to reduce the day-to-day decision-making that makes intermittent fasting difficult to maintain long-term.
Platform: iOS and Android
Read Also: How To Publish Your App on Google Play Store & Apple App Store?
6. Fasthabit: The Best App for Intermittent Fasting
FastHabit is the top option for Apple ecosystem users. It integrates directly with Apple Watch and Apple Health, letting you start and stop fasts from your wrist and track your progress alongside other health data. The free version includes a fasting timer, basic stat tracking, and customizable reminders.
The premium unlock ($2.99 one-time) removes the tracking cap and gives you full access to your historical data.
Platform: iOS only (Apple Watch supported)
7. LIFE Fasting Tracker: Monitor Your Intermittent Fasting Progress
LIFE Fasting Tracker stands out for two specific use cases: community-based accountability and ketosis tracking. You can see when your body is estimated to enter ketosis based on your fasting duration — a useful feature if you’re combining intermittent fasting with a ketogenic diet. The social component lets you connect with other users who are fasting simultaneously, which many people find motivating.
The free version is fully usable. The $2.99/month premium tier unlocks customized fasting schedules.
Platform: iOS and Android
8. Ate Food Diary: Log Your Meals and Track Your Intermittent Fasting Progress
Ate Food Diary takes a different approach to fasting tracking by focusing on the meal side of the equation. Rather than just timing your fast, the app lets you photograph and log your meals, then reflect on how different foods make you feel over time. It’s particularly well-suited to people who are building mindful eating habits alongside their fasting practice.
The Instagram sharing feature is genuinely useful for anyone who documents their health journey on social media. All core features are free; the premium version ($9.99) adds more detailed analytics.
Platform: iOS and Android
Read Also: Grow your business with mobile app development
9. Lasta: Personalized Wellness App with Healthy Trackers and Psychological Features
Lasta positions itself as a personalized wellness app rather than a pure fasting tracker. It covers weight tracking, body measurements, health parameters, and fasting schedules within a single interface. Users can select from multiple intermittent fasting protocols, including 16:8, 5:2, and alternate-day fasting, and the app adjusts guidance based on their goals and progress.
The app suits people who want a broader health tracking experience beyond a simple fasting timer.
Platform: iOS and Android
10. Vora: Comprehensive Meal Planner
Vora is a community-centered intermittent fasting tracker. The core free features include a fasting timer, weight tracking, and daily fasting history. What distinguishes it from the others on this list is the social feed, where users can see what others are doing and draw motivation from shared progress. If accountability is a key factor in your fasting success, Vora’s community features are worth trying.
The $4.99 upgrade adds coaching insights and more advanced progress reporting.
Platform: iOS and Android
How Are These Fasting Apps Built?
Apps like Zero, Fastic, and BodyFast didn’t launch as complete platforms. Most started as focused MVPs — a clean fasting timer and nothing else. Features like AI-based coaching, wearable integration (Apple Watch, Fitbit, Google Fit), community forums, and personalized fasting plans were added gradually, based on what users actually asked for.
If you’re thinking about building a similar health app, the core features that drive retention are:
- Fasting timer with push notifications — the foundation of any fasting app
- Progress tracking and analytics — visual charts that reinforce user commitment
- Wearable integration — Apple Health, Google Fit, Fitbit connectivity
- Personalized plans — fasting schedules that adapt to user goals and history
At DreamSoft4u, we’ve built mHealth app development solutions for healthcare and wellness brands – including fasting trackers, fitness apps, and remote patient monitoring tools with wearable integration.
Got an Idea for a Fasting or Wellness App?
We’ve helped wellness brands build fasting trackers and health monitoring tools — from MVP to full production.
Let’s Talk About Your AppIs Intermittent Fasting Right for You?
Intermittent fasting works well for many people, but it is not a universal fit. Here is a straightforward breakdown of what to expect:
Potential benefits backed by research:
- Weight management: Restricting your eating window can reduce overall calorie intake and, in some studies, provide modest metabolic benefits.
- Blood sugar regulation: Research suggests IF may improve insulin sensitivity, which is particularly relevant for people managing or at risk of type 2 diabetes.
- Cognitive function: Early studies indicate potential improvements in focus and memory, though research is still developing in this area.
- Cellular repair: Fasting periods may trigger autophagy — the body’s process of clearing out damaged cells — though the practical implications for most people are still being studied.
Considerations before starting:
- Hunger, fatigue, and headaches are common during the first week, particularly if you are used to frequent meals.
- Meal planning becomes more deliberate — what you eat during your eating window matters more, not less.
- IF is not recommended for pregnant or breastfeeding women, children, people with a history of disordered eating, or those with certain medical conditions. Consult your doctor before starting.
Read Also: The Best AI Tools for 2026: A Comprehensive Guide
Final Verdict: Which Free Intermittent Fasting App Should You Use?
For most people starting out, Zero is the best free intermittent fasting app in 2026. It covers the fundamentals well — a reliable timer, journal, and educational content — without requiring a subscription.
If you use an Apple Watch, FastHabit is the stronger choice. If nutrition tracking matters as much as fasting tracking, Fastic is worth downloading. And if community accountability keeps you consistent, Vora or LIFE Fasting Tracker will serve you better than a solo timer app.
The right app depends on what actually keeps you on track. Every app on this list offers a meaningful free tier – there is no reason to pay before you have confirmed that intermittent fasting works for your schedule and lifestyle.
DreamSoft4u offers Mobile app development Services for wellness brands looking to build custom fasting trackers or health platforms.
Building a Fasting App or Health Tracker?
DreamSoft4u’s mHealth team can help you build it — from architecture and wearable integration to App Store launch.
Book a Free ConsultationFrequently Asked Questions
Intermittent fasting can help you lose around 0.55 to 1.65 pounds per week. Results vary based on diet, activity level, and consistency.
As of 2026, Zero and Ate Food Diary are consistently among the highest-rated free intermittent fasting apps on both the App Store and Google Play. If you want to build something similar, DreamSoft4u offers Android and iOS app development services for wellness brands.
Most people start seeing results within 2–4 weeks of consistent 16:8 fasting. The 16-hour fast is the most commonly followed protocol.
IF is not recommended for pregnant or breastfeeding women, children, and those with certain health conditions. Always consult your doctor before starting.
It varies by app. Always check the app’s terms and conditions to understand the expertise behind its recommendations.
Yes. Zero, Fastic, LIFE Fasting Tracker, BodyFast, and Vora all offer solid free tiers with no subscription required. If you’re looking to build a fasting app with a freemium model, DreamSoft4u can help.
Zero and Fastic are the top-rated options on Android. Both offer strong free tiers with no subscription needed.
