Comparison

Empty Fasting vs Fastly

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

Head to head
About

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.

Highlights
  • Single fast focus
  • Home screen widgets
  • Overnight and daytime schedules
  • Customizable themes and icons
  • Streak and trend statistics
  • Encouragement during fasts
Read full description

· 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

About

Fastly

This app provides a clean and distraction-free timer for intermittent fasting. It tracks your fasting periods in real-time, offers various popular fasting plans, and automatically monitors fasting phases like fat burning and ketosis. View your history with clear statistics and receive smart reminders.

Highlights
  • Clean fasting timer with real-time tracking
  • Multiple intermittent fasting plans
  • Automatic fasting phase tracking
  • Fasting history with statistics
  • Smart reminders for goals
  • Minimalist interface
  • Dark mode support
Features
Read full description

Fastly is a clean, private fasting timer for 16:8, 18:6, OMAD, and custom schedules—without ads, accounts, or distractions. Start a fast with one tap, adjust your start or end time when needed, and see your elapsed time, remaining time, and planned finish at a glance. Fastly keeps the experience focused while giving you the tools you need to understand your routine and track your progress. FOLLOW YOUR FAST See estimated fasting phases based on your elapsed fasting time, including digestion, fat burning, ketosis, and autophagy. Upcoming phase markers make it easy to see what comes next during your fast. TRACK YOUR PROGRESS Review your complete fasting history through clear statistics, charts, and progress insights. Set weight and body fat goals, and optionally connect Apple Health to keep your measurements organized. STAY ON TRACK EVERYWHERE Follow your fasting status from your iPhone, Apple Watch, Home Screen widgets, and complications. Smart reminders help you stay aware of fasting goals and eating windows without unnecessary interruptions. KEY FEATURES • Real-time fasting timer with elapsed and remaining time • Planned fasting end time displayed at a glance • 14:10, 16:8, 18:6, 20:4, OMAD, and custom plans • Estimated fasting phases for digestion, fat burning, ketosis, and autophagy • Upcoming fasting phase markers • Complete fasting history with statistics and charts • Weight and body fat goals with progress benchmarks • Apple Health integration for weight and body fat • Apple Watch app and complications • Home Screen widgets for quick progress checks • Smart fasting and eating-window reminders • Optional private iCloud synchronization • Dark mode and a clean, focused interface PRIVATE BY DESIGN No ads. No third-party analytics. No developer data collection. Your fasting and health information stays on your devices and, when optional synchronization is enabled, in your private iCloud account. IMPORTANT NOTE Fasting phases are estimates based on elapsed time and can vary from person to person. Fastly is intended for general wellness and fasting tracking only. It does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before making medical or dietary decisions.

Screenshots

Empty Fasting4 screens
Fastly4 screens

Verdict

The call

The clearest difference is in-app purchases: Empty Fasting at none against Fastly's 4. Empty Fasting also leads on update cadence (every 3 days vs every 10 days). Fastly's advantage is rating (4.8 vs 4.6) and review sentiment (94% vs 83%). On price, ratings volume, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fastly sells 4 one-off in-app purchases. Empty Fasting asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Fastly holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 83 and 96 respectively. Written reviews point the same way: 83% of Empty Fasting's written reviews are positive against 94% of Fastly's.

UpkeepUpdate frequency

Empty Fasting ships an update every 3 days, Fastly every 10 days. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Empty Fasting versus Fastly: the parameters behind the verdict, then further details
ParameterEmpty FastingFastly
PriceFreeFree
Rating4.6 (83 ratings)4.8 (96 ratings) — better
Positive reviews83.3% of reviews94.1% of reviews — better
Number of ratings8396 — better
Update frequencyEvery 3 days — betterEvery 10 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17.0 — better17.6
Further details — not scored
Size169 MB9 MB
Age rating17+12+
DeveloperLight NudgeCollweb LLC

Customer experience

Empty Fasting

All ratings84 ratings
Positive89.3%
Neutral2.4%
Negative8.3%
Written reviews54 reviews
Positive83.3%
Neutral5.6%
Negative11.1%

Fastly

All ratings96 ratings
Positive95.8%
Neutral3.1%
Negative1.0%
Written reviews34 reviews
Positive94.1%
Neutral5.9%
Negative0.0%

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
Show 7 more
  • 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

Fastly

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Empty Fasting

No in-app purchases

4 purchases

Fastly

One-time4
  • Coffee$1.99
  • Lunch$4.99
  • Become a Supporter$4.99
Show 1 more
  • Dinner$9.99

Questions

Is Empty Fasting free?
Empty Fasting is free to download, with no in-app purchases.
Is Fastly free?
Fastly is free to download, with in-app purchases available.
Which has better reviews, Empty Fasting or Fastly?
Fastly is rated higher. Empty Fasting averages 4.6 out of 5 from 83 ratings, while Fastly averages 4.8 from 96 ratings.
Do Empty Fasting or Fastly have ads?
Neither Empty Fasting nor Fastly shows ads.
Which is updated more often, Empty Fasting or Fastly?
Empty Fasting ships an update every 3 days, and Fastly every 10 days. Most recently, Empty Fasting was updated on October 23, 2026 and Fastly on October 30, 2026.

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