Comparison

Fasting Tracker App vs Fasting Center

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

Head to head
About

Fasting Tracker App

This app helps you track intermittent fasting with a visual timer and personalized insights. It guides you through fasting phases, logs your daily habits, and offers tools to manage hunger. Unlock advanced analytics and recommendations with a Pro subscription.

Highlights
  • Smart fasting timer with custom protocols
  • Track metabolic milestones (ketosis, autophagy)
  • Comprehensive diary for mood, energy, and hunger
  • AI-powered personalized insights
  • Streaks and achievements for motivation
  • Hunger management coping tools
Features
Read full description

Track your intermittent fasting with a beautiful circular timer that makes every hour count. SMART FASTING TIMER Start a fast with one tap. Choose from 5 proven protocols — 16:8, 18:6, 20:4, OMAD, or create your own custom schedule. Watch your progress in real time with a fire-orange ring that fills as you get closer to your goal. METABOLIC MILESTONES Follow your body through 6 science-backed fasting phases. From ketosis to autophagy, see exactly what is happening inside as you fast — with each milestone celebrated when you hit it. COMPREHENSIVE DIARY Log mood, energy, hunger, sleep, cravings, meals, hydration, and symptoms throughout each session. Spot patterns and understand what helps you complete your fasts. INTELLIGENT INSIGHTS An AI-powered engine analyzes your data to find correlations between your habits and fasting success. Get personalized recommendations based on your unique patterns. STREAKS & ACHIEVEMENTS Build momentum with daily streaks and unlock achievements as you progress. A 7-day week bar shows your recent history at a glance. COPING TOOLS When the hunger hits, guided 4-7-8 breathing exercises, evidence-based hunger management tips, and activity suggestions help you push through. PRIVACY FIRST All data stays on your device. No accounts required. No data sold. Your fasting journey is yours alone. FLINT PRO Unlock advanced analytics and personalized insights with a Flint Pro subscription. Pro members get deeper trend analysis across multiple fasts, expanded milestone breakdowns, and tailored recommendations based on your unique patterns. • Includes a 3-day free trial for new subscribers • Auto-renews yearly at the same price unless cancelled at least 24 hours before the end of the current period • Manage or cancel anytime in your App Store account settings Download Flint for free today and take control of your fasting journey. Whether you're starting your first 16:8 fast, building a healthier routine, or just curious about intermittent fasting, Flint is the ultimate intermittent fasting companion. Start, track, and transform your way to a healthier you – one fast at a time! --- Terms of use: https://www.almastreetventures.com/terms Privacy policy: https://www.almastreetventures.com/privacy

About

Fasting Center

Plan extended fasts with personalized projections. Input your body stats and desired duration to estimate weight change, fat loss, and energy use. This data-driven tool provides a clear starting point for your fasting journey.

Highlights
  • Personalized fast planning
  • Extended fast duration options
  • Projected weight change
  • Estimated fat loss
  • Energy use projection
  • Data-driven starting point
Features
Read full description

Free fasting tracker and timer for intermittent fasting, OMAD, and extended water fasts. No ads, no account needed. Fasting Center is built around your numbers, not generic guesses. Start a fast, follow 17 fasting stages on a live ring, and see weight, fat loss, and energy use projected from your own body stats, then measured against what actually happened. TRACK YOUR FAST - Timer with stage markers: fat burning, ketosis, autophagy, and more - Any schedule: 16:8, 18:6, 20:4, OMAD, multi-day extended, or open-ended - Live Activity and Dynamic Island on iPhone, home screen widgets - Edit start and end times when life happens - Projected vs measured weight loss, side by side ASK YOUR FASTING ASSISTANT - Ask about your fasts, your weight, or how you feel during a fast - Answers based on your own log and the fasting.center knowledge base - Runs the calculators for you - how long to a goal weight or a body fat target - Free, with a daily limit of questions TWO CALCULATORS - Extended fast: total weight change, fat, water, glycogen, and protein loss day by day - Intermittent fasting: daily calorie deficit and expected weight change for your window - Personalized from your sex, age, height, weight, body fat, and activity MEASURE YOUR PROGRESS - Log weight, body fat, waist, ketones, glucose, and blood pressure - Rate energy, hunger, motivation, and stress during a fast - Apple Health sync: weight and body fat flow in automatically - Charts over 24h, 7 days, 30 days, 90 days, and a year - Import your history from Zero and Easy Fast YOUR DATA, YOURS - Free, no ads, no subscription - Works fully as a guest; optional sign-in with Apple or Google for cloud backup and sync - Delete your data and account anytime, completely Whether you are planning your first extended fast or fine-tuning a routine you have run for years, Fasting Center shows you what to expect and what actually happened. Fasting Center is a planning and estimation tool and does not provide medical advice. Consult a healthcare provider before starting an extended fast, especially if you have any underlying health conditions.

Screenshots

Fasting Tracker App4 screens
Fasting Center4 screens

Verdict

The call

The clearest difference is in-app purchases: Fasting Center at none against Fasting Tracker App's 2. Fasting Center also leads on ads (none vs shown) and update cadence (every 3 days vs every 6 days). Fasting Tracker App's advantage is rating (4.9 vs 4.7). On price, review sentiment and ratings volume 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. Fasting Tracker App sells 2 in-app purchases, starting at $29.99 per year. Fasting Center asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Fasting Tracker App holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 15 and 18 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Fasting Tracker App ships an update every 6 days, Fasting Center every 3 days. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

Scorecard7 real differences · 3 level
Fasting Tracker App versus Fasting Center: the parameters behind the verdict, then further details
ParameterFasting Tracker AppFasting Center
PriceFreeFree
Rating4.9 (15 ratings) — better4.7 (18 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings1518 — better
Update frequencyEvery 6 daysEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.015.0 — better
Further details — not scored
Size35 MB46 MB
Age rating17+12+
DeveloperAlma Street VenturesAndrey Titov

Customer experience

Fasting Tracker App

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Fasting Center

All ratings18 ratings
Positive88.9%
Neutral5.6%
Negative5.6%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Fasting Tracker App

Subscriptions2
  • Flint Pro3 Days trial$29.991 Year
  • Flint Plus3 Days trial$39.991 Year
None

Fasting Center

No in-app purchases

Questions

Is Fasting Tracker App free?
Fasting Tracker App is free to download, with in-app purchases available.
Is Fasting Center free?
Fasting Center is free to download, with no in-app purchases.
Which has better reviews, Fasting Tracker App or Fasting Center?
Fasting Tracker App is rated higher. Fasting Tracker App averages 4.9 out of 5 from 15 ratings, while Fasting Center averages 4.7 from 18 ratings.
Do Fasting Tracker App or Fasting Center have ads?
Fasting Tracker App shows ads; Fasting Center does not.
Which is updated more often, Fasting Tracker App or Fasting Center?
Fasting Tracker App ships an update every 6 days, and Fasting Center every 3 days. Most recently, Fasting Tracker App was updated on October 8, 2026 and Fasting Center on October 5, 2026.

Other comparisons