Comparison

Start Fasting vs FastKept

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

Head to head
About

Start Fasting

Features
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Start Fasting is the simple intermittent fasting timer built for consistency. Choose a fasting plan, start with one tap, and see exactly where you are in your fast. When your eating window opens or closes, Start Fasting reminds you โ€” quietly and clearly. Designed to stay out of your way: โ€ข One-tap fasting timer โ€ข 12:12, 14:10, 16:8, 18:6, 20:4 and OMAD plans โ€ข Personal fasting plans with Premium โ€ข Live timer on your Lock Screen โ€ข End-of-fast and end-of-window reminders โ€ข A simple rhythm view for weekly consistency โ€ข No account, calories, weight tracking, recipes, or clutter Start with the plan that fits your day, then keep going. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FastKept

Features
Read full description

Track your fasts with a clear timer and a plan that fits your week. What makes FastKept different? โ€ข Every feature is completely free. No paywalls and no locked features. โ€ข Home Screen widgets show the live clock under "Fasting". The medium widget also shows the goal end time, with wording such as "Your goal is 16 hours, so you're done at 12:58 PM." Lock Screen widgets show your running time and goal progress. โ€ข Choose a weekday schedule with rest days, keep notes and mood with each fast, and export and restore your history through Files without an account. Everything is free. The only thing you can ever pay for is removing ads for other Solstice Suite apps. Choose a preset or a custom length, start and end a fast, and review week, month, and rolling range history. Keep optional water, weight, and mood logs. Set reminders and use a Live Activity while a fast is running. Privacy Fasts and logs stay on your iPhone unless you export them, enable the relevant Apple Health sharing, or choose an account backup. Local photos and records from Apple Health are excluded from online backups. This is a timer and journal, not medical advice; it does not measure ketosis or diagnose fasting stages. Optional supporter plans are billed by Apple through your App Store account, and the app checks subscription status with our purchase provider using purchase information and technical information. We do not send your personal app records to it. Crash and performance diagnostics help us fix problems; they exclude your identity, screenshots, and view attachments. Optional ad removal Removes ads in all our apps on this device. Choose $0.99 weekly, $2.99 monthly, or $19.99 yearly in the U.S.; local prices may vary. All features remain free. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel in your Apple Account subscription settings. Deleting the app does not cancel a subscription. Support: support@solsticesuiteapps.com Privacy: https://fastkept.com/privacy/ Terms: https://fastkept.com/terms/ Part of Solstice Suite. All features free. No account needed.

Screenshots

Start Fasting3 screens
FastKept4 screens

Verdict

The call

Start Fasting and FastKept are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Start Fasting sells 2 in-app purchases, starting at $1.49 per month and FastKept sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Start Fasting versus FastKept: the parameters behind the verdict, then further details
ParameterStart FastingFastKept
PriceFreeFree
Update frequencyโ€”Fortnightly
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS16.4 โ€” better17.0
Further details โ€” not scored
Size48 MB17 MB
Age rating4+4+
DeveloperMarc CoetzeeTimothy Hess

In-app purchases

2 purchases

Start Fasting

Subscriptions2
  • Start Fasting Premium$1.491 Month
  • Start Fasting Premium$9.991 Year
3 purchases

FastKept

Subscriptions3
  • Ad-free Supporter Weekly$0.997 Days
  • Ad-free Supporter Monthly$2.991 Month
  • Ad-free Supporter Yearly$19.991 Year

Questions

Is Start Fasting free?
Start Fasting is free to download, with in-app purchases available.
Is FastKept free?
FastKept is free to download, with in-app purchases available.
Do Start Fasting or FastKept have ads?
Neither Start Fasting nor FastKept shows ads.

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