Owlish vs Onefast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Owlish
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Owlish is an alarm for the other end of the day. At your bedtime it starts ringing. It does not stop when you tap it. It stops when your phone is face-down and still for six minutes — which is to say, when you have actually gone to bed. If you would rather stay up, there is exactly one other way out: record fifteen seconds of yourself explaining why. That video is saved to an archive on your phone, and at the end of the month the app cuts your excuses together into a single video you can watch in daylight. HOW IT WORKS - A quiet reminder half an hour before bedtime, and again ten minutes before - Then five alarms over 45 minutes - Put the phone face down and still for six minutes. One buzz and they stop - Or record fifteen seconds saying why you are staying up. That stops them too - Ignore them and the night is marked with a black card in your monthly video NOTHING LEAVES YOUR PHONE No account. No login. No servers of ours. Your videos are written to your iPhone and stay there — nobody else can see them, and we could not retrieve them if we wanted to. You can lock the archive behind Face ID and delete any clip whenever you like. NOTHING TO FAIL There is no sleep score. Owlish checks that you are in bed, never that you are asleep — lying awake calmly is a win. If your phone goes still before the alarms finish, the rest are cancelled and nothing wakes you. Owlish is a bedtime alarm, not a medical device, and makes no health claims. SUBSCRIPTION Owlish is $19.99 once — a one-off purchase, not a subscription. Nothing renews and there is nothing to cancel. There is also a monthly plan at $2.99 with the first 14 days free, if you would rather try it that way. It renews automatically unless cancelled at least 24 hours before the period ends; manage or cancel it in your Apple ID settings. Prices are US; your own currency and price are shown before you confirm. Payment is charged to your Apple ID at confirmation. Terms: https://owlishapp.com/terms Privacy: https://owlishapp.com/privacy
Onefast
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A fasting timer that does one thing well. Pick a plan, tap Start, and Onefast counts. The time left is on your lock screen and in the Dynamic Island, so you never open the app just to look. When the goal is reached it tells you once, then keeps counting, up to seven days. ONE TAP No sign-up, no questions, no tour. The first screen is the plan picker with 16:8 already selected; the second is the timer. That is the whole setup. ALWAYS RIGHT The timer is a clock, not a counter. Force-quit the app, restart the phone, change time zone — it comes back showing the true elapsed time, to the second. The widget, the Live Activity and the app all read the same moment. YOURS TO EDIT Forgot to tap End? Fix the time afterwards. Add a fast you did last week. Overlaps are named in words, not blocked silently. Fasts longer than 24 hours are allowed — Onefast asks once whether you meant it, then never again. QUIET WHEN YOU WANT Three switches: Live Activity with Dynamic Island, the lock screen widget, and the home screen widget. Notifications turn on and off one kind at a time, and the mid-fast ones start off. PLANS 12:12, 14:10, 16:8, 18:6, 20:4 and one meal a day are built in. Up to five named custom plans and a weekly schedule with Pro. NO ADS. EVER. Not on the free tier, not after you buy. Onefast has no server, no account and no analytics. Your history lives on your iPhone and, if you turn it on, in your own private iCloud. ONEFAST PRO Unlimited history (free keeps the last 30 days), 30-day and all-time stats with charts, month and year summaries, insights from your own record, milestones you can share, a weekly schedule with rest days, up to five named custom plans, two-way weight sync with Apple Health, a weight goal line on your chart, ten ring colours and app icons or a colour of your own, a medium calendar widget, and CSV export. Two prices, one name: a yearly subscription that auto-renews until cancelled, or a single lifetime purchase. No trial. The price is on screen before you tap anything. Everything that makes the timer usable — lock screen, notifications, backup, editing — stays free with or without Pro. Onefast is a timer. It gives no medical or dietary advice; talk to a professional before changing how you eat. Available in English, 日本語, 한국어, 繁體中文, Italiano, Nederlands, Deutsch, Français, Español, Português (Brasil), العربية, Türkçe and Tiếng Việt. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://primetruthteam.github.io/onefast/privacy/
Screenshots
Verdict
The clearest difference is update cadence: Onefast at every 2 days against Owlish's weekly. Onefast also leads on iOS requirement (17.0 vs 26.1). 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
Both are free to download. Owlish sells 4 in-app purchases, starting at $2.99 per month and Onefast sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.
Owlish ships an update weekly, Onefast every 2 days. Both last shipped on October 29, 2026.
| Parameter | Owlish | Onefast |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 26.1 | 17.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Kunal Singh | Nguyen Dinh Chung |
In-app purchases
Owlish
- Owlish Monthly14 Days trial$2.991 Month
- Owlish Monthly$6.991 Month
- Owlish Annual14 Days trial$39.991 Year
- Owlish Lifetime$19.99
Onefast
- Onefast Pro (Yearly)$9.991 Year
- Onefast Pro (Lifetime)$19.99









