Comparison

Empty vs Marble

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

Head to head
About

Empty

This app helps users achieve weight loss goals and improve metabolic health through intermittent fasting. It offers personalized fasting plans, progress tracking, and educational content to support a healthy lifestyle.

Highlights
  • Fasting timer with progress monitoring
  • Customizable fasting plans
  • Weight and water intake tracking
  • Body status and metabolic insights
  • Daily educational content
  • Health app integration
Features
Read full description

Empty - intermittent fasting app is a unique fasting app tailored to meet your weight loss goals. Unlock the power of intermittent fasting as it aids your weight loss journey and improves your overall metabolic health. Our intermittent fasting app will walk you through your weight loss and fitness goals seamlessly, help you regulate your hormones, and enjoy all the many health benefits intermittent fasting offers without hassles. There's no time like the present to get the banging body you've always dreamed about. Don't waste any more time. Download the Empty intermittent fasting app today to start a safe, easy, sustainable weight loss journey. EMPTY - YOUR PROFESSIONAL FASTING ASSISTANT New to intermittent fasting? Many people worldwide are already taking advantage of this easy yet effective weight-loss hack. It would be best if you did too. Let us help you realize the potential of intermittent fasting and how it can help you maintain a healthy lifestyle. The app is perfect for you if you have a problem controlling your eating habits. You will also find educational and motivational content to help you keep your body and mind in great shape. FEATURES: Fasting timer Want to monitor your fasting intervals? Empty has a fasting timer, and all you have to do is switch it on! You could see what stage of fasting or eating you're currently at and thereby optimize your results. Stay on track with our helpful tips and timely reminders. Fasting plans Choose from several options according to what's right for you. The app has protocols for beginners, intermediaries, and experts, and they all work perfectly with whatever diet you're on, be it keto, paleo, gluten-free diet, etc. Weight Tracker Track your weight as you use the app. You can watch your weight drop on the graphs as you progress on your fasting journey. Water tracker Stay hydrated! Water is essential for good health. Are you getting enough? The app will ensure you do just that, with a feature that calculates your daily water requirements and a reminder to help you stay on track. Body status Know your body. Our app tracks key metrics about the changes that occur in your body as you fast, such as rate of metabolism, ketosis, blood sugar level, etcetera. Statistics Follow the changes that occur in your body and track them. Use the statistic feature to monitor your fasting progress, water intake, the number of steps taken, and weight. Insights Find answers to your many questions through the insights feature of our app. You also get to learn something new about intermittent fasting every day. Health App Integration Sync your data from your Apple Health kit, and your data is automatically uploaded. Hence, saving you the stress of doing it yourself. SUBSCRIPTION INFO: You can download the app for free. Further use requires a subscription. - When opting for a subscription, you pay the fixed price for your country, which is displayed in the app. - Payment will be charged to your iTunes Account upon confirmation of purchase. - Subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. - Your Account will be charged for renewal within 24 hours prior to the end of the current subscription period. - You can manage your subscriptions and turn off auto-renewal by going to your Account Settings after purchase. - When canceling a subscription, your subscription will stay active until the end of the current period. Auto-renewal will be disabled, but the current subscription will not be refunded. For more information, see our: Privacy Policy: https://www.mgp.lv/app/empty/pp.html Terms of Use: https://www.mgp.lv/app/empty/tc.html

About

Marble

This app helps you track intermittent fasting with personalized schedules and timers. It offers home screen widgets for easy monitoring and prioritizes user privacy by syncing data via iCloud without collection.

Highlights
  • Personalized fasting schedules
  • Next fast timer
  • Home screen widgets
  • iCloud data sync
  • No data collection
  • Ad-free experience
Features
Read full description

Marble is a straightforward intermittent fasting tracker. It lacks promotions or unnecessary content. All data syncs through your personal iCloud account without any data collection. Personalized Fasting Schedules Marble is adaptable to any fasting schedule. Select a fasting and rest interval that fits your routine and goals. Next Fast Timer Building a habit is important. Marble will show a timer until the next fast to ensure a habit can get built. Widgets Keep up with your fast from your Home Screen by adding one of our widgets. It will show both fasting time and rest timers. Your Data We prioritize privacy. We don't collect any data for you to use our app; simply download and enjoy. Your fasts will be synced via your iCloud. Terms of Service: https://www.solidfoundation.app/tou/marble EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.solidfoundation.app/privacy-policy/marble

Screenshots

Empty4 screens
Marble4 screens

Verdict

The call

The clearest difference is rating: Marble at 5.0 against Empty's 1.0. Marble also leads on ads (none vs shown). Empty's advantage is ratings volume (4 vs 1) and iOS requirement (15.2 vs 17.2). On price, update cadence, in-app purchases and monetization model 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. Empty sells 3 in-app purchases, starting at $19.99 per month and Marble sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Marble holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Empty ships an update every 10 days, Marble fortnightly. The most recent releases landed on August 14, 2026 and September 8, 2026 respectively.

Scorecard4 real differences · 6 level
Empty versus Marble: the parameters behind the verdict, then further details
ParameterEmptyMarble
PriceFreeFree
Rating1.0 (4 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 10 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPod — betteriPhone
Requires iOS15.2 — better17.2
Further details — not scored
Size40 MB280 MB
Age rating12+17+
DeveloperMGP DIGITALMaksim Vakarchuk

Customer experience

Empty

All ratings4 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Marble

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Empty

Subscriptions3
  • 1 Month Access$19.991 Month
  • 3 Months Access$26.493 Months
  • 12 Months Access$45.991 Year
3 purchases

Marble

Subscriptions2
  • Monthly Subscription$1.991 Month
  • Annual Subscription$14.991 Year
One-time1
  • Lifetime$24.99

Questions

Is Empty free?
Empty is free to download, with in-app purchases available.
Is Marble free?
Marble is free to download, with in-app purchases available.
Which has better reviews, Empty or Marble?
Marble is rated higher. Empty averages 1.0 out of 5 from 4 ratings, while Marble averages 5.0 from 1 ratings.
Do Empty or Marble have ads?
Empty shows ads; Marble does not.
Which is updated more often, Empty or Marble?
Empty ships an update every 10 days, and Marble fortnightly. Most recently, Empty was updated on August 14, 2026 and Marble on September 8, 2026.

Other comparisons