Comparison

Catholic Calendar vs Mary

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

Head to head
About

Catholic Calendar

Access daily Mass readings, saints' biographies, and the Order of Mass. Offers the Liturgy of the Hours, Rosary with scripture, and offline access. Customizable display options and helpful support are included.

Highlights
  • Daily liturgical calendar
  • About Today page with reflections
  • Order of Mass
  • Rosary with scripture audio
  • Offline access
  • Customizable display
  • Home Screen widgets
Features
Read full description

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. It includes reflections and biographies. • The Order of Mass with all the possible alternative texts. • The Rosary with a verse of Scripture for every Hail Mary of every Mystery. Spoken audio is included if you want to listen to it. • No Internet needed: everything you need is already built in. • No cleverness needed: each day, Catholic Calendar works out exactly what you need to see. • View any date: past, present and future. • Use your own local calendar: USA, Canada, Singapore, Ireland, and every diocese in Australia, New Zealand and the UK. • Easy to read and use: a choice of fonts; big or small type; dark or light theme; page-turning or scrolling. • Help and support: tips and instructions are included; or press “Contact Us” to send us a message, and we will reply. And more – Home Screen widgets; liturgical events for your iOS calendar; copy and paste into other apps; reminders and alarms. THE MONTHLY SUBSCRIPTION ADDS: (Your first month is free.) LITURGY OF THE HOURS: The complete official Liturgy of the Hours of the Catholic Church, as used worldwide. Morning (Lauds), daytime (Terce, Sext and None), evening (Vespers), night (Compline) and the deeply reflective Office of Readings. Do as many or as few of them as you like. • The psalms and canticles match the official English and American books. Scripture readings are from the Jerusalem Bible or the RSV. • Latin if you want it: by itself or alongside the English. MASS: The exact prayers and readings at Mass for each day. • England, Wales, Scotland: the official ESV version. • United States: the official NAB version. • Elsewhere: Jerusalem Bible readings and Grail psalms. • Latin if you want it: alongside the English. AND ALSO… • Illustrations in the About Today page. • “Mass Today” gives you the Order of Mass and today’s readings and prayers, all in one page. Bishops have been known to use it to say Mass from their iPads! • “Spiritual Reading” gathers the patristic and hagiographic readings for all the saints and feasts of the day. • Daily Books takes selected spiritual classics and presents them in daily instalments to focus and enrich your prayer life. • Commentaries on the day’s Mass readings from a leading biblical scholar. And more – daily email service; Mass readings on your Apple Watch. OPTIONAL ADD-ON AUDIO (in-app purchase required) Just press the button and listen! If you want to see what you are hearing, the text is highlighted to follow the sound. After an initial download, no Internet is required. Works with CarPlay too. • Spoken English Liturgy of the Hours: every Hour of every day of every year. Monthly or annual subscription. • Spoken English Mass Readings: First and Second Reading and the Gospel. Jerusalem Bible translation only. Monthly or annual subscription. (You can listen to a sample before subscribing. Following App Store rules, subscriptions renew automatically but you can cancel auto-renewal at any time.) • Sung Latin Compline (Night Prayer): by the boys of the Schola Cantorum of the London Oratory School. Single purchase. -- Privacy policy & terms of service: universalis.com/n-ios-privacy.htm.

About

Mary

Explore comprehensive information on the Blessed Virgin Mary, Mother of Jesus. This free app provides resources on her doctrine, devotions like the interactive Rosary, and details on apparitions and pilgrimage sites. Deepen your understanding and devotion to Mary to grow closer to Jesus.

Highlights
  • Interactive Rosary with audio
  • Marian Dogmas and Titles
  • Marian Feasts and Prayers
  • Images and Apparitions of Mary
  • Pilgrimage Sites information
  • Information on Marian Fathers
Features
Read full description

The Marian Fathers of the Immaculate Conception, creators of the popular DIVINE MERCY APP, are pleased to release the MARY APP. This FREE app offers a complete resource for information on the Blessed Virgin Mary, Mother of Jesus, in an easy to navigate format. The app has three main chapters with these features: DOCTRINE • Introduction to Mary • Marian Dogmas • Titles of Mary • Marian Timeline • FAQs • Resources DEVOTION • Interactive Rosary with an audio option • Marian Consecration • Marian Sacramentals • Marian Feasts • Marian Chaplets • Marian Prayers MARY PLUS • Images of Mary • Apparitions • Pilgrimage Sites • Information about the Congregation of Marian Fathers of the Immaculate Conception • Introduction to the Association of Marian Helpers • Link to online religious catalog Mary’s whole task is to lead us closer to Jesus. The more we get to know her and have a fervent devotion to her, the better she can lead us to her Son. For this reason, the Second Vatican Council states, “Everyone should have a genuine devotion to [Mary] and entrust his life to her motherly care.”

Screenshots

Catholic Calendar4 screens
Mary4 screens

Verdict

The call

The clearest difference is in-app purchases: Mary at none against Catholic Calendar's 10. Mary also leads on review sentiment (92% vs 82%) and iOS requirement (12.0 vs 15.6). Catholic Calendar's advantage is update cadence (every 3 weeks vs every 3 months). On price, rating, ratings volume and ads 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. Catholic Calendar sells 10 in-app purchases, starting at $0.99 per month. Mary asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Catholic Calendar against 4.7 for Mary. Both are backed by a comparable volume of ratings — 984 and 544 respectively. Written reviews are what separate them: 82% of Catholic Calendar's written reviews are positive against 92% of Mary's.

UpkeepUpdate frequency

Catholic Calendar ships an update every 3 weeks, Mary every 3 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 5 level
Catholic Calendar versus Mary: the parameters behind the verdict, then further details
ParameterCatholic CalendarMary
PriceFreeFree
Rating4.8 (984 ratings) — better4.7 (544 ratings)
Positive reviews81.9% of reviews92.2% of reviews — better
Number of ratings984 — better544
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size77 MB43 MB
Age rating4+4+
DeveloperUniversalis PublishingMarian Fathers of the Immaculate Conception

Customer experience

Catholic Calendar

All ratings984 ratings
Positive95.5%
Neutral1.1%
Negative3.4%
Written reviews171 reviews
Positive81.9%
Neutral5.8%
Negative12.3%

Mary

All ratings509 ratings
Positive90.6%
Neutral3.1%
Negative6.3%
Written reviews128 reviews
Positive92.2%
Neutral3.1%
Negative4.7%

User reviews

Catholic Calendar

From 984 App Store ratings

What we love

  • 👍 Keeps me informed and organized
  • 👍 Best app for daily prayer
  • 👍 Great prayer tool
  • 👍 Wonderful spiritual aid
  • 👍 Faithful companion

Room to improve

  • 🐛 Psalter
  • 🐛 Notification Bells TAKE OVER MY iPhone!!!
  • 🐛 App crashes
  • 🐛 Something is wrong
  • 🐛 Subscription not sharable across apple family members

Mary

From 544 App Store ratings

What we love

  • 👍 Easy to use
  • 🙏 Helpful for prayer life
  • 🌟 Excellent app for learning about Mary
  • 🎨 Beautiful design and visuals
  • 🔊 Soothing narration voice

Room to improve

  • 🐛 Audio issues (cutting out, repeating)
  • 🔍 Difficulty navigating/tracking progress
  • 🔌 Compatibility issues with iOS 11 and newer
  • 🔇 Lack of customization options (volume, speed)

Bugs and requests

Catholic Calendar

Reported bugs

4 issues
  • App crashes when you try to open
  • Crashes on iPhone 6 with IOS 12
  • App refuses to open
  • Update with widget for iOS14 opens and immediately closes

Requested features

8 requests
  • Look up option
  • Memorial Dates
  • Add Eastern Catholic Saints' Feasts, & other Feasts only celebrated by Eastern Catholics, to the Eastern General calendar
  • Add Holy Rosary & Divine Mercy Chaplet
  • Add 1961 General & local liturgical calendars, 1961 Roman Breviary, 1962 Roman Missal
Show 3 more
  • Alerts
  • Spanish daily readings
  • Add dates to calendar

Mary

Reported bugs

2 issues
  • Rosary prayers not proceeding correctly after Luminous Mysteries
  • App not compatible with latest iOS versions

Requested features

4 requests
  • Add Latin audio/text option for rosary
  • Include Litany of the Blessed Virgin Mary
  • Implement vibration patterns to distinguish rosary mysteries
  • Add ability to pause/resume rosary without losing progress

In-app purchases

10 purchases

Catholic Calendar

Subscriptions6
  • Daily texts7 Days trial$0.991 Month
  • Daily Mass Readings1 Month trial$1.991 Month
  • Daytime Hours1 Month trial$2.991 Month
Show 3 more
  • All Hours1 Month trial$2.991 Month
  • Daily Mass Readings1 Month trial$19.991 Year
  • All Hours1 Month trial$29.991 Year
One-time4
  • July 2011$0.99
  • September 2011$0.99
  • October 2011$0.99
Show 1 more
  • Sung Latin Compline$3.99
None

Mary

No in-app purchases

Questions

Is Catholic Calendar free?
Catholic Calendar is free to download, with in-app purchases available.
Is Mary free?
Mary is free to download, with no in-app purchases.
Which has better reviews, Catholic Calendar or Mary?
Catholic Calendar is rated higher. Catholic Calendar averages 4.8 out of 5 from 984 ratings, while Mary averages 4.7 from 544 ratings.
Do Catholic Calendar or Mary have ads?
Neither Catholic Calendar nor Mary shows ads.
Which is updated more often, Catholic Calendar or Mary?
Catholic Calendar ships an update every 3 weeks, and Mary every 3 months. Most recently, Catholic Calendar was updated on November 1, 2026 and Mary on October 29, 2026.

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