Empty Fasting vs Stack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Empty Fasting
This app helps users focus on a single fasting period at a time, offering both overnight and daytime schedules. It provides customizable themes and icons, home screen widgets, and tracks fasting streaks and trends with encouraging messages.
- Single fast focus
- Home screen widgets
- Overnight and daytime schedules
- Customizable themes and icons
- Streak and trend statistics
- Encouragement during fasts
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· Full-focus on one fast at a time · Home screen widgets & live activities · Overnight and daytime fasting schedules · Make it yours with 6 themes and 18 icons · Statistics for your streaks and trends · Encouragement throughout your fasts
Stack
This app helps you build and complete habits within a 90-day timeframe. It focuses on finishing cycles rather than perpetual tracking, with a limit of three habits at a time. The interface uses a grid to mark progress, and a widget provides quick access to daily tasks.
- Three habit limit
- 90-day completion cycles
- Manual grid progress tracking
- Home-screen widget
- One honest skip per week
- No accounts or data collection
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Stack is a habit tracker with a finish line. Three habits. Ninety days. Then it is done. The stack ships, archives, and you start fresh. The cap of three and the ninety days are not limits to pay past. They are the point. Most habit apps are built to keep you forever. Stack is built to end. - Three habits. No more. The limit is the feature. - Ninety days. A clean quarter, then a finish line. - One honest skip a week. It holds your streak but shows as a skip, never a fake fill. - The grid is the app. Ninety days of dots, filled in by hand. - A home-screen widget with today's three. Tap to mark. - Built in Liquid Glass for iOS 26. No accounts. No subscription. No analytics. Zero data collected. Pay once. It is yours. From hsla0001, an independent studio in New York. Void captures. Loop times. Protocol scores the room. Stack holds intent.
Screenshots
Verdict
The clearest difference is price: Empty Fasting at Free against Stack's $6.99. Empty Fasting also leads on ratings volume (84 vs 1) and iOS requirement (17.0 vs 26.0). Stack's advantage is rating (5.0 vs 4.6) and update cadence (daily vs every 3 days). On ads, in-app purchases and device support 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
Empty Fasting is free to download; Stack costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Stack holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Empty Fasting has 84 ratings behind it against 1, so its average is the more settled of the two.
Empty Fasting ships an update every 3 days, Stack daily. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.
| Parameter | Empty Fasting | Stack |
|---|---|---|
| Price | Free — better | $6.99 |
| Rating | 4.6 (84 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 84 — better | 1 |
| Update frequency | Every 3 days | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 169 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Light Nudge | hsla0001 |
Customer experience
Empty Fasting
Stack
Bugs and requests
Empty Fasting
Reported bugs
1 issue- Fast reminders still sent even if the fasting session is currently active.
Requested features
12 requests- Custom fasting length (days/hours)
- More options for ADF
- Apple Health integration
- Ability to edit start time of a running timer
- Set multiple start fast reminders
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- Option to set app to allow fasting from specific things (alcohol, meat)
- Manual time input for fasting
- Apple Watch addition
- Watch widget
- Start fasts automatically
- Ability to start countdown from a previous time
- Ability to add a fast started yesterday
Stack
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Empty Fasting
No in-app purchases
Stack
No in-app purchases
Questions
Is Empty Fasting free?
Is Stack free?
Which has better reviews, Empty Fasting or Stack?
Do Empty Fasting or Stack have ads?
Which is updated more often, Empty Fasting or Stack?
Other comparisons
