Comparison

Fastly Fasting Tracker vs Simple Fasting

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

Head to head
About

Fastly Fasting Tracker

Features
Read full description

Lose weight and take control of your eating with Fastly — the complete intermittent fasting tracker with no subscription. Start a fast in one tap and watch a beautiful timer reveal exactly what your body is doing right now: fat-burning, ketosis, and autophagy. Follow any schedule, track your weight and progress, build streaks, and stay motivated — with no $70/year subscription. Most fasting apps lock the features that keep you consistent behind an expensive paywall. Fastly gives you everything, with no paywall. LIVE FASTING STAGES See your body move through each stage as your fast progresses — fed, fat-burning, ketosis, autophagy, and growth hormone. Know exactly when you'll reach the next stage and what it does for your body. It's the motivation that gets you through the hard hours. A TIMER YOU CAN TRUST One-tap start and stop. A glowing ring fills as you fast and shifts color with each stage. Your elapsed time stays exact after backgrounding, a reboot, or a phone restart — because a wrong timer is the fastest way to quit. EVERY SCHEDULE INCLUDED 16:8, 18:6, 20:4, OMAD (23:1), 14:10, 12:12, 5:2, Warrior, Circadian, and fully custom. Beginner to advanced — switch anytime and set a recurring weekly plan. SEE YOUR RESULTS Log your weight and watch the trend move toward your goal. Track BMI, body measurements, fasting hours, average fast length, and completion rate with beautiful charts. STAY MOTIVATED Build streaks, take on challenges, earn milestones, and beat your longest fast. Visible progress is what keeps you going. WATER AND REMINDERS Track hydration and get calm, motivating reminders — fast start and end, eating-window open and close, "you'll reach ketosis in 1 hour," and log-your-weight nudges. LEARN AS YOU FAST Built-in guidance on fasting benefits, what breaks a fast, the science of the stages, and beginner tips — no paywall. NO SUBSCRIPTION, NO PAYWALL All fasting protocols, live stages, weight and progress tracking, streaks, challenges, water, reminders, and content are all included. No subscription, no "shell" tier. There's an optional one-time remove-ads upgrade if you'd like a clean screen. Whether you're starting your first 16:8 or chasing autophagy on OMAD, Fastly gives you the complete toolkit to lose weight, burn fat, and feel great through intermittent fasting. Download Fastly and start your first fast today — no subscription needed. Fastly is not a medical device and does not provide medical advice. Talk to your doctor before starting any fasting or weight-loss program.

About

Simple Fasting

Features
Read full description

Build a consistent fasting routine without the clutter. Simple Fasting is a focused intermittent fasting timer for tracking both fasting and eating windows. Start with one tap, see your progress at a glance, and learn from your own rhythm over time. SIMPLE FASTING AND EATING TRACKING • Start and stop fasting or eating with one tap • Choose a daily fasting target from 8 to 24+ hours • Adjust start times and add periods you missed • Edit completed periods and review your history • Follow your day with a clear fasting and eating ring KEEP YOUR PROGRESS VISIBLE • Follow an active fast from your Lock Screen • See progress in the Dynamic Island • Add the Simple Fasting widget to your Home Screen • Receive helpful reminders and milestone notifications UNDERSTAND YOUR ROUTINE • Compare fasting and eating time across different periods • Discover your usual and longest fasting windows • See when your eating window typically starts and ends • Follow trends, completed windows, and consistency • Review your current streak, best streak, and tracked days STAY MOTIVATED—WITHOUT PRESSURE • Unlock achievements as you keep tracking • Build a streak through consistent daily use • Join an optional 7-day fasting challenge • Read gentle hints designed to support a sustainable routine PRIVATE AND FOCUSED No account is required. Your fasting and eating records are stored locally on your iPhone. Simple Fasting stays focused on your routine. There is no calorie counting, food logging, water tracking, complicated diet planning, or social feed. New users receive 24 hours of full access. Continued access requires a subscription. Available options and prices are shown before purchase. Simple Fasting is a tracking tool and does not provide medical advice. If fasting becomes uncomfortable, eat something. Consult a qualified healthcare professional before making significant changes to your eating routine. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Fastly Fasting Tracker4 screens
Simple Fasting4 screens

Verdict

The call

The clearest difference is in-app purchases: Fastly Fasting Tracker at none against Simple Fasting's 2. Fastly Fasting Tracker also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads 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. Simple Fasting sells 2 in-app purchases, starting at $4.99 per 7 days. Fastly Fasting Tracker asks for nothing beyond the download.

Scorecard3 real differences · 3 level
Fastly Fasting Tracker versus Simple Fasting: the parameters behind the verdict, then further details
ParameterFastly Fasting TrackerSimple Fasting
PriceFreeFree
Update frequency—Weekly
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size33 MB72 MB
Age rating4+4+
DeveloperGunawan SantosoOleksandr Kryzhanovskyi

In-app purchases

None

Fastly Fasting Tracker

No in-app purchases

2 purchases

Simple Fasting

Subscriptions2
  • Premium Weekly$4.997 Days
  • Premium Yearly3 Days trial$19.991 Year

Questions

Is Fastly Fasting Tracker free?
Fastly Fasting Tracker is free to download, with no in-app purchases.
Is Simple Fasting free?
Simple Fasting is free to download, with in-app purchases available.
Do Fastly Fasting Tracker or Simple Fasting have ads?
Neither Fastly Fasting Tracker nor Simple Fasting shows ads.

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