Marble vs Steady
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Personalized fasting schedules
- Next fast timer
- Home screen widgets
- iCloud data sync
- No data collection
- Ad-free experience
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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
Steady
This app offers a minimalist approach to intermittent fasting, focusing on a simple timer and logging your experience. It provides guided breathing exercises and puzzles to help you through challenging moments during your fast. Your data is stored locally and the app is designed to be ad-free and without gamified elements.
- Intermittent fasting timer (12-20 hour windows)
- One-tap mood logging
- Three-minute paced breathing exercises
- Offline functionality
- Mindful puzzles
- Honest fasting record
- Local data storage
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Other fasting apps count the hours. Steady gets you through the hard one. For people who already fast and keep breaking at the same stretch. Not a diet app: no calories, no meal plans, no weight tracking. A streak to protect. Badges to earn. Water, weight and steps to log. A dozen pings before lunch. None of it helps at the hour you want to eat, and all of it is one more thing to fall behind on. Steady is a timer, one check-in before the hour you usually quit, something to do while that hour passes, and a record that tells the truth. That is the whole app. Hungry is easy. Tired, hungry and low, all at once, is what beats you. That stack lands around the same hour of a fast and lifts not long after, and no timer notices. Steady learns when it hits you, checks in just ahead of it, gives you three minutes of slow breathing to get through it, and two hours later shows you, from your own record, that it passed. WHAT IT IS - A fasting timer for 12 to 20 hour windows. - One check-in, two taps: pick a mood, log it. - Three minutes of paced breathing when a check-in is low. The circle fills, you breathe in; it empties, you breathe out. A gentle pulse in your hand marks each breath, so you can shut your eyes. Works offline. - A small puzzle if breathing is not your thing. A new one every time. No clock, no score. - Then one question: how is it now? Steady keeps the answer and tells you plainly whether it lifted. - Or water and a ten-minute wait, with the drink picked for the time of day. Water first, nothing with caffeine late. - An honest record: how many you finished, your longest, and how often you felt better a little later after a low check-in, with the fasts you ended early counted against it. The You tab shows what got you through, counted from your own record. WHAT IT IS NOT - No streaks at all. No badges, no fire icons. Nothing resets, so there is nothing to lose. - Not a diet app. No calorie counting, meal plans, or water, weight or step logging. No meditation library to keep up with either. - No social feed, no ads, no analytics. - No inflated stages. Steady tops out at 20 hours and does not claim autophagy or ketosis, because they do not happen at 16 hours. IT WILL TELL YOU TO STOP Tap anything physical during a check-in (shaky, dizzy, heart racing) and Steady tells you to stop and eat, whatever the hour. YOUR DATA STAYS ON YOUR PHONE No account. No server. Everything Steady knows about you lives in a local database on your iPhone, and nothing you enter is sent anywhere. It all works offline. Delete the app and it is gone. Steady is not a medical device and does not give medical advice. If you take insulin, a sulfonylurea or an SGLT2 inhibitor, or have any condition affected by not eating, talk to your doctor before fasting. If you feel unwell during a fast, stop and eat. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://steadyfasting.app/privacy
Screenshots
Verdict
The clearest difference is monetization model: Steady at free against Marble's freemium. Steady also leads on update cadence (every 3 days vs fortnightly) and ratings volume (3 vs 1). On price, rating, ads and in-app purchases 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
Both are free to download. Marble sells 3 in-app purchases, starting at $1.99 per month and Steady sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Marble against 5.0 for Steady. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Marble ships an update fortnightly, Steady every 3 days. The most recent releases landed on October 10, 2026 and October 31, 2026 respectively.
| Parameter | Marble | Steady |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Fortnightly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.2 | 16.4 — better |
| Further details — not scored | ||
| Size | 280 MB | 63 MB |
| Age rating | 17+ | 12+ |
| Developer | Maksim Vakarchuk | ChamsDel LLC |
Customer experience
Marble
Steady
In-app purchases
Marble
- Monthly Subscription$1.991 Month
- Annual Subscription$14.991 Year
- Lifetime$24.99
Steady
- Weekly$4.997 Days
- Annual14 Days trial$19.991 Year









