Start Fasting vs FastKept
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Start Fasting
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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: โข One-tap fasting timer โข 12:12, 14:10, 16:8, 18:6, 20:4 and OMAD plans โข Personal fasting plans with Premium โข Live timer on your Lock Screen โข End-of-fast and end-of-window reminders โข A simple rhythm view for weekly consistency โข 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/
FastKept
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Track your fasts with a clear timer and a plan that fits your week. What makes FastKept different? โข Every feature is completely free. No paywalls and no locked features. โข 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. โข 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
Verdict
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
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.
| Parameter | Start Fasting | FastKept |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 48 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Marc Coetzee | Timothy Hess |
In-app purchases
Start Fasting
- Start Fasting Premium$1.491 Month
- Start Fasting Premium$9.991 Year
FastKept
- Ad-free Supporter Weekly$0.997 Days
- Ad-free Supporter Monthly$2.991 Month
- Ad-free Supporter Yearly$19.991 Year









