App Store
Version 3.170 · 2026-10-28
Adapted for the iPhone Duo!
Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 3.170, updated 2026-10-28.








Store screenshots supplied by the developer.
Universalis is a missal and a breviary, and more besides. It gives you the Liturgy of the Hours (Divine Office) and the Mass for every day; plus valuable additional material.
The Catholic Calendar app lets you join in with the tens of thousands of people who use Universalis daily, through a free app plus a small monthly subscription of roughly $0.99 / £0.79 / €0.99 (the App Store will tell you the exact figure). If you prefer a single purchase instead of a monthly subscription, get the Universalis app instead of the Catholic Calendar app.
WHAT YOU GET FOR FREE
• A complete liturgical calendar listing every saint and feast for your region.
• The “About Today” page tells you what saints are being celebrated today, not only in your region but worldwide.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
No review analysis published for this app.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Adapted for the iPhone Duo!
catholic-calendarWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
These are really on sale; we just can’t tell from the name whether they recur.
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.