# Empty vs Marble

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.

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.

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.

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

## The numbers

| Metric | Empty | Marble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (4 ratings)](https://appshunter.io/ios/app/empty-intermittent-fasting/id1623174687/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/marble-intermittent-fasting/id6477356664/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 40 MB | 280 MB |
| Requires iOS | **15.2** | 17.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [MGP DIGITAL](https://appshunter.io/developer/1268665472) | [Maksim Vakarchuk](https://appshunter.io/developer/1504357263) |

## What reviewers say

### Empty

[App page](https://appshunter.io/ios/app/empty-intermittent-fasting/id1623174687)

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:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Access | $19.99 | per month |
| 3 Months Access | $26.49 | per 3 months |
| 12 Months Access | $45.99 | per year |


### Marble

[App page](https://appshunter.io/ios/app/marble-intermittent-fasting/id6477356664)

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:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual Subscription | $14.99 | per year |
| Lifetime | $24.99 | one-time |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*