Repbook Iron plan vs FastOnce
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Repbook Iron plan
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Repbook Iron plan is a focused workout tracker for lifters who want fast logging and clear progress without account setup or noisy coaching. Build routines on iPhone, log workouts from your phone or Apple Watch, and review progress after each session. Repbook keeps recommendations conservative and practical by using your routine targets and recent workout history. No subscriptions. Pay once get it all. No AI All data is stored on device nothing goes to third party servers.
FastOnce
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One giant button. That is the whole app. Tap it to start a fast, tap it to end. A real 24-hour clock face shows exactly where your fast sits in the day, not an abstract bar. Available in English, Spanish, French, Arabic, Russian, Hindi and Ukrainian. RAMADAN Switch on Ramadan mode and the timer stops being a number of hours you picked. Your fast runs from suhoor to iftar, worked out on the phone for wherever you are, and both times move a few minutes every day exactly as they really do. Six calculation methods: Umm al-Qura, Dubai, the Egyptian General Authority, the Muslim World League, Karachi and North America. The one used where you are is chosen for you. Everything is computed on the device from your location, so it works with no signal at all and nothing is sent anywhere. Ramadan mode appears in the app as the month comes round. WHY FASTONCE Nearly every fasting app rents you a timer. You answer a quiz, hand over an email, then pay monthly for a clock. FastOnce asks for none of that. No account, no sign-up, and it opens straight onto the button. WHAT YOU GET, FREE A dial that actually reads as time The ring wraps a 24-hour wall clock, so you can see at a glance that your fast ends at 8pm rather than decoding a percentage. Plans that fit your day 12:12, 14:10, 16:8, 18:6, 20:4 and OMAD, or set your own hours. You can also pick the time you want to finish and the length is worked out for you. It keeps going by itself When your fast ends the eating window opens, and when that closes the next fast begins. Weeks can pass without opening the app. Forgot to hit start Backdate the start time and the ring, the stages and every reminder recalculate instantly. Stages, explained in plain language Blood sugar drop, fat burning, ketosis and autophagy, each with a short friendly explanation. No clinical claims, no scare tactics. Your calendar, your streaks, your totals A month calendar of completed fasts, current and longest streaks, and your totals. Free, and staying free. Gentle nudges, only if you want them Optional pings at the halfway mark, at each stage, when your fast completes, and short encouragement while you are in it. Quiet overnight. Your fast, outside the app The running fast lives on the Lock Screen and in the Dynamic Island, counting down without the app open, and it stands up in StandBy while the phone charges. There are Lock Screen widgets, a home-screen widget in three sizes, a Control Center switch, and "start my fast" for Siri. Made for iPad The dial takes the full screen and the four destinations move into a sidebar, so the whole app is one tap deep. FASTONCE PRO, ONE PAYMENT Pro is a single purchase. No subscription, nothing renews. It adds three things and nothing else: Charts and trends Hours per day, how often you reach your goal, your weekly average, and the hour you actually start. Export your log Every fast you have finished, as a spreadsheet file that leaves the app and is yours to keep. Still no account, still offline Pro changes what you can see, not where it lives. PRIVACY No account, no analytics, no advertising, no server of ours. Nothing you record ever leaves your iPhone, and neither does your location. The only time FastOnce talks to anything is when you buy Pro, which goes through the App Store. FastOnce shares general wellbeing information, not medical advice. Talk to a doctor before changing your eating habits.
Screenshots
Verdict
The clearest difference is update cadence: FastOnce at every 5 days against Repbook Iron plan's every 3 months. 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. Neither carries in-app purchases, so what you see is what you pay.
Repbook Iron plan ships an update every 3 months, FastOnce every 5 days. The most recent releases landed on September 12, 2026 and September 28, 2026 respectively.
| Parameter | Repbook Iron plan | FastOnce |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Andreas Engebretsen | Andrii Zakharov |
In-app purchases
Repbook Iron plan
No in-app purchases
FastOnce
No in-app purchases
Questions
Is Repbook Iron plan free?
Is FastOnce free?
Do Repbook Iron plan or FastOnce have ads?
Which is updated more often, Repbook Iron plan or FastOnce?
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