Comparison

Fasted vs CoFasting 16

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

Head to head
About

Fasted

Track your fasting progress with a timer that shows metabolic phases. Connect with friends to fast together and stay motivated. Build custom fasting programs and monitor your health metrics.

Highlights
  • Intermittent fasting timer
  • Metabolic phase tracking
  • Social fasting with friends
  • Customizable fasting programs
  • Streak tracking and achievements
  • Health and body measurement logging
  • Data export
Features
Read full description

The only intermittent fasting app where you can fast with a friend. Start your fast. Cheer each other on. Hit milestones together. Fasted is built for people who want results — with the tools to get them and the motivation to stick. THE FASTING TIMER One tap starts your fast. Fasted tracks every minute and shows you exactly which of 5 metabolic phases your body is in — Fed State, Catabolic, Fat Burning, Ketosis, and Deep Ketosis — so you understand what's happening, not just how long you've been going. Live on your home screen with widgets. Your fast follows you everywhere. FAST WITH A BUDDY Pair with a fasting partner and see their timer in real time. Send fire emojis. Leave comments. Watch each other hit phases. Built-in accountability without the group chat noise. FASTING PROGRAMS Not ready to wing it? Build a multi-week fasting program — assign different protocols to different days, set auto-start times, and let Fasted run your schedule. Like a fasting coach that doesn't charge by the hour. STREAK SYSTEM Your fasting streak is your most powerful habit tool. Fasted tracks every completed fast, fires confetti at milestones (3, 7, 14, 30, 60, 100 days), and gives you streak freezes for life's unpredictable moments. 18 achievements across 5 categories. Unlock, share, and keep going. YOUR PROTOCOL. YOUR RULES. • 16:8 — The most popular. Fast 16 hours, eat in 8. • 18:6 — Push further. • OMAD — One Meal A Day. Maximum simplicity. • 5:2 — Eat normally 5 days, restrict 2. • 20:4 — Advanced, targeting deep ketosis. • Custom — Build your exact window, down to the minute. HEALTH TRACKING Log water, weight, electrolytes (sodium, potassium, magnesium), body measurements (waist, hips, chest, thighs), and blood levels (ketones + glucose). Everything in one place, charted over time. Hunger Map: See your hunger patterns across every hour of every day of the week. Know when it's hardest. Plan around it. WHAT YOU GET FREE - Fasting timer with all 5 metabolic phases - All 6 default protocols (16:8, 18:6, OMAD, 5:2, 20:4, 12:12) - Streak tracking + 1 monthly freeze - Full fast history and calendar - Water logging - Share cards (completion, streak, achievement) - Data export (CSV + JSON) - No account required to start FASTED PRO - Buddy system — fast with a partner in real time - Weight, hunger, electrolyte & blood level tracking - Body measurements (waist, hips, chest, thighs) - Fasting heatmap + hunger map - Advanced analytics and trends - Unlimited streak freezes - Fast notes and manual fast creation WHY IT WORKS Intermittent fasting isn't a diet. It's a schedule. You're not cutting food groups or counting every calorie — you're simply controlling when you eat. Consistent research shows it reduces body fat, improves insulin sensitivity, and triggers autophagy. And for most people: it's the first approach that actually sticks. Fasted gives you the timer, the data, and the people to make it work long-term. Terms of service: https://getfasted.app/terms Privacy policy: https://getfasted.app/privacy

About

CoFasting 16

Features
Read full description

CoFasting is a fasting timer built for two. You and one other person, on the same ring. Send an invite by iMessage or AirDrop and they are in within seconds — no account, no email, no password, ever. BUILT FOR TWO, NOT FOR ONE A fasting tracker is usually a solo screen. CoFasting starts from the opposite idea: the person doing it with you should be right there on the ring. • One invite, sent the way you already text • Both timers on a single ring, refreshed about once a minute while the app is open • See when they start, when they are close, when they finish • Remove a partner at any time, from either side • If you have Plus, your partner never needs to buy anything SHARING WITHOUT A SIGNUP Sharing normally means creating an account first. CoFasting uses your own iCloud to link the two of you, so there is nothing to create and nothing to remember. Your fasts live on your device and in your private iCloud. We do not run a server that holds them, because there is no account to hold them against. SIX SCHEDULES 12:12, 14:10, 16:8, 18:6, 20:4 and 23:1 — one meal a day. 16:8 is included for everyone. Switch whenever your week changes — travel, a late dinner, a slow Sunday. A LAP, NOT A LECTURE Pip walks your fasting window like a running track and passes checkpoints along the way: Fed, Glycogen, Ketosis, Autophagy. The checkpoints are time-based educational estimates, meant to make the hours more interesting to watch. They are not measurements of your body. FOOD NOTES, ON DEVICE Describe what you ate in plain words and Apple Intelligence turns it into an estimated calorie and macro entry, entirely on device. Nothing is uploaded anywhere. Values are estimates — edit any number you disagree with. Without Apple Intelligence, a built-in food table makes the estimate instead. WHEN THE TIMER ENDS An alarm you will actually hear, even with the ringer off. Checkpoint notifications while the clock runs. A Home Screen widget and a Live Activity so the ring is one glance away. YOUR DATA STAYS YOURS • No account, no signup, no email address • No third-party analytics servers • Everything on device and in your own iCloud • CSV export and import, in every version COFASTING PLUS Included for everyone: the 16:8 schedule, the timer, your full history, food notes with no limit, the widgets, the Live Activity, and CSV export. Plus unlocks the other five schedules, the silent-mode finish alarm, and laps that start themselves the moment your eating window closes — and lets you invite a partner, who never needs to buy anything. Accepting an invitation never requires Plus. CoFasting Plus is offered as a 3-month or 12-month auto-renewing subscription, or as a one-time purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel in your Apple Account settings. BEFORE YOU START CoFasting is a timer and a tracking tool. It does not provide medical advice, diagnosis or treatment, and the checkpoint labels are educational estimates rather than readings from your body. Talk with a qualified health professional before changing how you eat — particularly if you are pregnant or breastfeeding, under 18, taking medication, living with a medical condition, or have a history of disordered eating. Questions, or something you want us to build next? Get in touch from Settings inside the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.zeusqolivar.com/privacy-cofasting

Screenshots

Fasted4 screens
CoFasting 164 screens

Verdict

The call

The clearest difference is update cadence: CoFasting 16 at every 5 days against Fasted's every 2 weeks. Fasted's advantage is iOS requirement (16.0 vs 26.2). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fasted sells 3 in-app purchases, starting at $6.99 per month and CoFasting 16 sells 3 in-app purchases, starting at $12.99 per 3 months. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fasted ships an update every 2 weeks, CoFasting 16 every 5 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Fasted versus CoFasting 16: the parameters behind the verdict, then further details
ParameterFastedCoFasting 16
PriceFreeFree
Rating4.6 (44 ratings) — better—
Positive reviews81.8% of reviews—
Number of ratings44 — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better26.2
Further details — not scored
Size48 MB13 MB
Age rating12+12+
DeveloperMust Have Apps, SIAZeus Solomon Olivar

In-app purchases

3 purchases

Fasted

Subscriptions2
  • Fasted Pro Monthly$6.991 Month
  • Fasted Pro Yearly$29.991 Year
One-time1
  • Fasted Pro Lifetime$49.99
3 purchases

CoFasting 16

Subscriptions2
  • CoFasting Plus 3 Months$12.993 Months
  • CoFasting Plus Yearly7 Days trial$29.991 Year
One-time1
  • CoFasting Plus Forever$39.99

Questions

Is Fasted free?
Fasted is free to download, with in-app purchases available.
Is CoFasting 16 free?
CoFasting 16 is free to download, with in-app purchases available.
Do Fasted or CoFasting 16 have ads?
Neither Fasted nor CoFasting 16 shows ads.
Which is updated more often, Fasted or CoFasting 16?
Fasted ships an update every 2 weeks, and CoFasting 16 every 5 days. Most recently, Fasted was updated on November 9, 2026 and CoFasting 16 on November 5, 2026.

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