Comparison

Ocras vs Flow

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

Head to head
About

Ocras

Features
Read full description

You don’t need another fasting app begging for your attention and tracking your data. Ocras is a simple fasting app built around one question: am I eating right now, or fasting? Set your eating window once, add a widget to your Home Screen, Lock Screen, or Apple Watch, and that’s pretty much it. Ocras works out your current fasting state from your schedule and shows it at a glance. There’s no need to start or stop a fast manually. No notifications telling you when to eat. No account to create. You shouldn’t have to open the app several times a day just to keep a fasting timer accurate. If it’s 3pm on a Tuesday, Ocras should simply be able to tell you at a glance whether you’re inside your eating window, without you unlocking your phone. What Ocras does * Set a different eating window for each day of the week, or use the same schedule every day * Choose from common schedules like 16:8, 18:6, 20:4 and OMAD, or make your own * Add widgets to your Home Screen and Lock Screen * Add widgets and complications to your Apple Watch * Choose from different widget styles, including the original designs, retro-inspired widgets and vaporwave themes * Check your fasting status without opening the app * Works completely offline - no cloud needed What Ocras deliberately does not do: * There are no notifications. * There’s no social feed or sharing. * There’s no account to maintain. * There’s no internet connection required for the core app (only if you want to unlock the additional widgets). * Your schedule and fasting data stay on your device - Ocras does not track anything about you. The aim is to keep Ocras useful without turning fasting into another thing you need to manage. Still growing: I’m continuing to add new widget designs, including more customisation options, and support for longer multi-day fasts is planned too. For now, Ocras is intentionally small: set your schedule, put a widget somewhere useful, and get on with your day. Set once. Glance when you need it. Happy fasting!

About

Flow

Features
Read full description

FlowSync is your intelligent period and cycle tracking companion. With a beautiful, intuitive calendar interface, FlowSync helps you understand your body's natural rhythms. KEY FEATURES: • Smart Calendar — Visual cycle tracking with color-coded days for period, fertile window, and ovulation • Period Predictions — AI-powered cycle predictions based on your history • Symptom Tracking — Log mood, energy, cramps, and other symptoms daily • Today View — At-a-glance dashboard showing cycle day, phase, and upcoming events • Cycle Insights — Understand your patterns with detailed cycle analysis • Beautiful Design — Clean, modern interface that's a joy to use FlowSync is designed for informational and general wellness purposes only. It is not intended to be used for contraception, medical advice, diagnosis, or treatment. Always consult your healthcare provider for medical concerns.

Screenshots

Ocras4 screens
Flow4 screens

Verdict

The call

The clearest difference is update cadence: Ocras at every 4 days against Flow's every 3 weeks. Ocras also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Ocras ships an update every 4 days, Flow every 3 weeks. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 4 level
Ocras versus Flow: the parameters behind the verdict, then further details
ParameterOcrasFlow
PriceFreeFree
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size53 MB4 MB
Age rating4+4+
DeveloperCONOR LUDDY拥军 刘

In-app purchases

None

Ocras

No in-app purchases

None

Flow

No in-app purchases

Questions

Is Ocras free?
Ocras is free to download, with no in-app purchases.
Is Flow free?
Flow is free to download, with no in-app purchases.
Do Ocras or Flow have ads?
Neither Ocras nor Flow shows ads.
Which is updated more often, Ocras or Flow?
Ocras ships an update every 4 days, and Flow every 3 weeks. Most recently, Ocras was updated on October 10, 2026 and Flow on October 6, 2026.

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