Made by one person.
ActivePray is made by Benjamin Weberink, under the name Kastle Five, in Rotterdam, the Netherlands.
One app for daily prayer across Judaism, Christianity and Islam, with each branch kept on its own terms.
Why I made it.
I came to ActivePray from cybersecurity, privacy and software development, and from a long fascination with the three Abrahamic faiths. A prayer app sits where those meet: few things are as personal as how someone prays, and European law counts religious belief among the special categories of personal data that need the most care.
So the app is built to know as little as it can, by design rather than by promise. The prayer times, the direction of prayer and every branch’s calendar are calculated on the iPhone itself, from astronomical formulas and each branch’s own rules. There is no analytics or advertising code in it. The one thing we keep is your username, and the prayer journal is end-to-end encrypted, with its keys in your own iCloud Keychain.
What draws me to the faiths is how differently they keep time under one sky. The Hebrew calendar follows the moon and the sun together, the Hijri calendar the moon alone, and the churches still keep two calendars, the Julian and the Gregorian. The same sunset can open Shabbat and break a fast in Ramadan. Keeping each of them correctly, side by side, with none set above another, is the most absorbing problem I know.
Prayer is part of my own life too; which faith is mine, I leave out of the app on purpose. ActivePray is not built from inside one faith looking out at the others: each branch is read from its own sources, and every prayer time and holy day through 2027 was checked against published tables before release.
Three faiths. Eight branches.
Masorti, Reform and Karaite Judaism; Orthodox, Catholic and Protestant Christianity; Sunni and Twelver Shia Islam.
Each keeps its own calendar, its own hours and its own prayers. Where two branches differ, each is followed on its own terms rather than averaged into one.
Worked out on your iPhone.
Every time in the app is calculated on the phone, from where you are and where the sun is, so it keeps working without a signal.
No analytics, no advertising, no tracking. Privacy at a glance.
Released on 18 September 2026.
Version 2.0, the Autumn Harvest update, followed on 5 October, 2.1 on 10 October, and 2.2 on 13 October.
Every version is on the release notes page.
Free, and kept going by Active+.
The core is free and stays free: the prayer times, the calendar, the scripture and the reminders.
Active+, €2.99 a month in the eurozone, adds a private prayer journal and the extras, and is what keeps one person’s app going.
Kastle Five.
The business of Benjamin Weberink, registered in Rotterdam. The legal notice has its address and registration.
The App Store credits the app to Benjamin Weberink, as an individual account does; Kastle Five is the name it is made under.
Write to us.
kastlefive@icloud.com, for support, for press, or for anything else.
The press kit has the facts, the screenshots and the icon; the support page answers the common questions.
Free on iPhone. Everything it does, and how it compares.