Free vs Paid Fasting Apps: Is Premium Worth It?

Quick Answer: Yes, there are free fasting apps, and no, none of the big ones is free of a paywall. The useful questions are narrower: is the free tier a whole app or a trailer, can you buy the paid tier once instead of renting it, and do you have to hand over an email to see a timer. Fasted's free tier holds the timer, six protocols, phases, streaks and notifications with no account and no trial; its Pro tier can be bought outright for $49.99. Zero, Simple, BodyFast and Fastic all want an account, and all four bill by subscription.

Every major fasting app follows the freemium model: a free version to get you started and a paid subscription for the full experience. But what "free" and "paid" actually mean varies dramatically across apps. Some free tiers are genuinely useful. Others are barely functional demos designed to push you toward a subscription.

"Free" on an app store means free to download. It says nothing about what happens on day three when the feature you actually wanted asks for a card. This guide breaks down what each app puts on the free side of that line, which apps let you avoid a recurring bill entirely, which ones let you skip the account, and how to check any of it yourself in thirty seconds.

Free Tier Comparison

The range is significant. Fasted and Life offer the most usable free experiences. Simple and BodyFast's free tiers are the most restricted, essentially functioning as extended trials designed to convert you to paid.

What Free Tiers Actually Give You

Fasted (Free)

Fasted's free tier includes the fasting timer, all six built-in daily protocols, the metabolic phase display, streaks, history and start-and-end notifications. There is no account to create and no free trial to expire — the free tier is how you try the app.

What it does not include: weight and body measurements, the hunger map, the history heatmap, detailed analytics, custom protocols, notes, data export and Fast Buddy all sit in Fasted Pro. And one thing sits in neither tier — Fasted does not log food at all, at any price. If a food diary is what you are shopping for, this is the wrong app rather than the wrong tier.

Zero (Free)

Zero's free version gives you the fasting timer and access to the educational content library. The timer works well and the articles are genuinely valuable. Weight tracking, nutrition features, and detailed insights require Zero Plus at $69.99 per year.

Simple (Free)

Simple's free tier is the most limited among major apps. After a lengthy onboarding quiz, most features sit behind the paywall. The free experience is essentially a preview of what you would get as a subscriber. At $59.99+ per year for premium, Simple is also among the most expensive.

BodyFast (Free)

BodyFast's free version provides a basic timer and limited fasting plans. The Coach feature, which is the app's main value proposition, requires a premium subscription at $49.99 per year. Without the Coach, you miss the adaptive planning that differentiates BodyFast.

Fastic (Free)

Fastic's free tier gives you the timer and some community access. Meal plans, detailed insights, and full social features require premium at approximately $39.99 per year. The free tier sits in the middle of the pack.

Life (Free)

Life's core features including the timer and fasting circles are largely free. This makes Life one of the most accessible options, though its feature set is more limited than apps with robust premium tiers.

What Premium Actually Unlocks

Premium subscriptions across fasting apps generally unlock three categories of features:

1. Detailed Stats and Insights

Free tiers typically show basic information: your current fast, recent history, and simple completion counts. Premium unlocks trend analysis, weekly and monthly breakdowns, consistency metrics, and pattern recognition.

This matters because fasting is a long-term practice. Understanding your patterns over weeks and months, not just today, helps you optimize your approach and stay motivated when progress feels slow.

2. Advanced Tracking

Weight tracking, meal logging, and integration features are commonly gated behind premium. These tools connect your fasting practice to measurable outcomes. Without them, you know when you fasted but not how it affected your weight or how your nutrition contributed to results.

3. Premium-Specific Features

Some features exist only in paid tiers:

• Zero Plus: Nutrition tracking, advanced insights
• Simple: Full AI coaching, personalized plans
• BodyFast: Coach with adaptive weekly plans
• Fastic: Complete meal plans, full social features
• Fasted: Weight and body measurements, hunger map, heatmap, analytics, custom protocols, export, Fast Buddy

Premium Pricing Comparison

The price range from cheapest to most expensive spans $40 per year. Fasted is the most affordable premium option. Zero Plus is the most expensive. The question is whether the specific premium features of each app justify the price difference.

Treat every figure in that table as an indication rather than a quote. App Store prices differ by country, change without notice, and several of these apps list four or more purchase options rather than one annual price. The listing is the authority; the section below shows you how to read it.

When Premium Is Worth It

Premium subscriptions make sense in specific situations:

You want to track weight alongside fasting. If seeing how your weight responds to consistent fasting is important to your motivation and decision-making, premium tiers that include weight tracking provide real value. Almost every app in this category treats it as a paid feature, ours included.

You want meal logging. Understanding what you eat during your eating window matters for results, and a free macro calculator sets the targets that logging is measured against. If you want this integrated with your fasting data rather than in a separate app, premium tiers that include meal logging are worthwhile.

You want long-term insights. After a month or two of fasting, the patterns in your data become valuable, and knowing what usually happens week by week makes them easier to read. Weekly consistency rates, average fasting durations, weight trends, and streak data help you understand whether your approach is working. Most apps gate these insights behind premium.

You respond to specific premium features. If AI coaching (Simple), adaptive plans (BodyFast), or social features (Fastic) genuinely help you stay consistent, the subscription pays for itself through better adherence.

For more on which features drive real results, see our features that matter guide.

When Premium Is Not Worth It

Premium is a waste of money in these situations:

You only need a timer. If you just want to know when your fast ends, free tiers handle that perfectly. You do not need to pay for a countdown — the browser fasting timer on this site is free and needs no account.

You will not use the premium features. AI coaching is worthless if you never open the coach. Meal plans are wasted if you never follow them. Be honest about which features you will actually use before subscribing.

You are not committed to fasting yet. If you are still deciding whether intermittent fasting works for you, start with a free tier. Upgrade after you have established the habit and want to optimize it.

You can get the same data elsewhere. If you already track weight in a scale app and meals in a nutrition app, paying for those features in your fasting app is redundant.

Apps With No Subscription At All

"No subscription" means two different things, and it is worth separating them before you go looking.

The first is a free tier you can live in permanently. That exists, and Fasted's is the strongest in the category: the timer, all six built-in protocols, the metabolic phases, streaks, history and notifications, with no account and no trial that quietly starts billing. Life Fasting Tracker has kept a functional free tier running for years — the app is dated and no longer moves much, but the timer works and the fasting circles are free. Fastient's core journalling is free too.

The second is a paid tier you can own rather than rent. That is genuinely rare here. Fasted Pro lists a $49.99 lifetime purchase alongside its $6.99 monthly and $29.99 yearly plans, and it is the only one-time purchase among the apps on this page. Everything else in the category has moved to recurring billing.

At the other end sit the apps whose pricing is built on the assumption that you will forget to cancel. The clearest example is DoFasting, which bills monthly at a rate that works out to many times what a yearly fasting-app subscription costs, for a product whose core function is counting hours. We are not going to print a figure for it, because we have not re-read its listing this month and a stale price is worse than none — read the In-App Purchases section yourself before you subscribe to anything billed monthly.

Watch for the patterns that make "free" a marketing word rather than a description:

• The timer is free but your history disappears after a few days
• Seven days free, then billing starts without another prompt
• The free tier shrinks after the setup period
• Upgrade prompts arrive while you are fasting

The App Store and Play reviews will tell you which apps do this faster than any article can. Search the reviews for "free tier" and read what people who hit the paywall say about where it sat.

Apps That Do Not Need an Account

Most apps in this category want an email address before they will show you a timer. Zero, Simple, Fastic and Fastient all do. Fasted does not — you install it, pick a protocol, press start, and the history stays on the device.

Three reasons people care. Speed: the best moment to start a fast is now, and a sign-up flow costs you several minutes at exactly the wrong time. Privacy: an account attaches your fasting pattern, and often your weight, to your identity in somebody's database, and health habit data is worth more to more parties every year. Less to manage: another login, another password reset, another account that can be breached.

The argument on the other side is real and worth stating properly rather than dismissing. An account buys you cloud backup. A device-only app loses your history with the phone, and nobody can restore it for you. If you have lost phone data before and found it painful, that sign-up friction is buying you something. If you back your phone up regularly, most of the benefit arrives anyway without the app needing an account of its own.

There is no security ranking hidden in this choice. Cloud storage is not inherently less safe than local storage; it just fails differently. What decides it is the company's practices, and neither model tells you anything about those.

How to Read an App's Paywall in Thirty Seconds

This works for every app on either store, and it is more reliable than any comparison page, this one included.

1. Open the app's App Store or Google Play listing.
2. Scroll to In-App Purchases. Every price the app can charge you is named there.
3. Read the names as much as the numbers. "Monthly", "Yearly" and "Lifetime" tell you the shape of the business. Two tier names and seven purchases tell you a different story.
4. Check the description for an account requirement.

If the In-App Purchases section is missing entirely, the app really is free of charge — which is rare, and usually means advertising pays for it instead. That is its own price.

A worked example. Zero is free to download; its US listing showed three Zero Plus purchases at $9.99, $69.99 and $89.99 when read on 16 August 2026, and its own description says the app "includes a free version and an optional subscription for premium features." What the listing does not publish is a feature-by-feature split of which side of the line each thing sits on, and that line moves as the app changes. Anyone who tells you exactly what is behind Zero's paywall today is quoting the app as they last saw it, not a published document — us included. The paywall screen inside the app is the only current answer.

Apply the same test to the free tier itself. A fasting tracker needs five things to be complete: a timer that survives a restart, the common protocols, a history you can look back at, a streak, and notifications when the window opens and closes. If the free tier holds that list, it is an app. If it holds only the timer, it is a trailer.

The Best Value Strategy

Here is a practical approach to getting the most from fasting apps without overspending:

1. Start with Fasted's free tier. It offers the most complete free experience with six schedules and basic tracking.
2. Use it for two to four weeks. Establish your fasting habit and see if the basic stats answer your questions.
3. Evaluate whether premium would help. If you find yourself wanting deeper stats, enhanced tracking, or advanced insights, the premium upgrade at $29.99 per year is the most affordable option.
4. Try Zero's free tier too. If educational content matters to you, Zero's articles are available for free and complement Fasted's tracking.

This approach costs you nothing initially and ensures you only pay for features you will actually use.

For the complete comparison of all major apps, see our best fasting app roundup. For details on how Fasted compares to the most popular alternative, read our Fasted vs Zero comparison.

Frequently Asked Questions

Is there a completely free fasting app?

Not with everything unlocked, no. But several free tiers are genuinely usable rather than demos. Fasted's holds the timer, all six built-in protocols, the metabolic phases, streaks and notifications, with no account and no trial. Life Fasting Tracker keeps a functional free tier including its fasting circles. Fastient's journalling is free. Zero gives you a free timer and its content library. If your definition of free is "I can track fasts indefinitely without paying", all four qualify.

Is there an intermittent fasting app with no subscription?

Yes, in both senses. Several apps let you use a free tier forever without a recurring charge — Fasted, Life and Fastient among them. And if you want the paid features without renting them, Fasted Pro sells a $49.99 one-time lifetime purchase alongside its monthly and yearly plans. That is unusual: almost every other app in the category has moved entirely to subscriptions.

Is there a fasting app that needs no account?

Fasted is the clear one. Install it, pick a protocol, press start — no email, no password, no profile. Zero, Simple, Fastic and Fastient all ask for an account first. The trade-off is that an app you never sign in to has no cloud backup, so a lost phone is a lost history unless you back the phone up yourself.

Is the Zero fasting app free?

Free to download, paid to unlock — which is true of almost every fasting app. Zero's own App Store description says it "includes a free version and an optional subscription for premium features", and the listing showed three Zero Plus purchases at $9.99, $69.99 and $89.99 when read on 16 August 2026. The free version runs the timer and the content library. Which specific features sit behind the paywall is not published anywhere, and it moves, so read the paywall screen in the app before you subscribe.

Are fasting app subscriptions a one-time purchase?

Almost always no. The category has moved to recurring billing, monthly or annual, and annual plans are much cheaper per month. Fasted is the exception on this page: $49.99 buys Pro outright. If you are done renting software, that is the shape to look for in the In-App Purchases section — a purchase named "Lifetime" rather than "Yearly".

Can I cancel my fasting app subscription anytime?

Yes. All major fasting apps allow subscription cancellation through your phone's app store (Apple App Store or Google Play). Cancellation stops future charges, and you typically retain premium access until the end of your current billing period.

Which fasting app has the best free tier?

Fasted offers the most complete free tier among major fasting apps, including the timer, six fasting schedules, and basic tracking. Life Fasting Tracker is also highly accessible at no cost. Simple has the most restrictive free tier, with most features gated behind the premium subscription.

Is it worth paying for AI coaching in a fasting app?

AI coaching (available in Simple) can be valuable for beginners who want personalized guidance and someone to answer questions. The value diminishes as you gain experience and learn what works for your body. If you already have a fasting routine that works, you are unlikely to need AI coaching.

What to Read Next

• Best Intermittent Fasting App in 2026
• Fasting App Features That Actually Matter
• Fasted vs Zero: Which Fasting App Is Better?