Comparison

OpMedApp vs Credo

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

Head to head
About

OpMedApp

Features
Read full description

This app is not endorsed by or associated with the US Government, Department of Defense, or any state or local government This app is not for the use in medical decision making or in the treatment, identification, or diagnosis of any illness or injury. This app is a private endeavor to create a space where common documents and tasks are categorized. The initial focus was the aerospace medical provider in the operational environment, but this should be useful for any USN provider looking for common forms. The main focus is in aviation because that’s the field I am in, but the goal is to provide a document repository for commonly used resources. In some areas I provide my thoughts, but these are just my opinions. Also in the resource section are links, apps, and RSS feeds that I felt may be useful. There is a medical calculator that covers CGS, respirator settings, and a burn calculator. This was just a project that was fun, it's not anticipated to be used in a clinical setting. Also in this app I've made a dark mode accessible through the app info page. My hope with this app is to get as much input as possible so that the app can be relevant and up to date. TO aid this there are multiple quick links to a Google document where input can be provided. This is the second iteration, the original app OpMedApp-Flight, had to be discontinued due to programming issues, primarily that I’m not a programmer and goofed it up. This version includes several UI changes to help with the user interface. There’s also a section with general apps, both DoD and civilian, and RSS feeds, also both DoD and civilian. One additional option is a dark mode. This may be accessed in the app information tab: on the home screen select the button in the top left corner, then click on the dark mode box. All referenced materials in the app are open source documents designated for public release. These documents can be found on the Navy Medicine website (https://www.med.navy.mil/) as well as the Air Force (https://www.afrl.af.mil/) This app does not access, collect, use, or share personal information. I do request permission for notifications. This is only to provide notifications on when resources are updated or a new release is available. There is no spam and there is no advertising on this app I do hope there is value added and you find usefulness in the app! (comments can go to admin@opmedapp.com)

About

Credo

This app offers traditional Catholic prayer resources, including the Roman Breviary and the Rosary, with public domain Bible texts in English and Latin. It features a liturgical calendar, daily word puzzles, and customizable prayer lists. Optional premium features enhance the experience with reminders and extended functionality.

Highlights
  • Traditional Roman Breviary
  • Rosary with multiple mysteries
  • Public domain Bible (English/Latin)
  • Liturgical calendar
  • Daily word puzzle
  • Customizable prayer lists
  • Home and Lock Screen widgets
Features
Read full description

Credo opens on the hour that belongs to this moment. The traditional Roman Breviary and the Rosary, with a Catholic Bible in public-domain text. Today From 5 in the morning, Lauds. Through the day, Terce, Sext, and None. From 5 in the evening, Vespers. From 9 at night, Compline. The feast, the liturgical color, a verse, and one daily word are on the same screen. The Roman Breviary All eight hours, in the 1960 rubrics: Invitatory, Matins (Office of Readings), Lauds, Terce, Sext, None, Vespers, and Compline. This is the older Roman Office, not the Liturgy of the Hours parishes have used since 1970. Each hour has its hymn, psalms, reading, canticle, and prayer. When you have prayed it, mark it prayed. That mark stays on today’s checklist. The Rosary Joyful, Sorrowful, Glorious, and Luminous mysteries, for the day of the week or chosen by hand. Bead by bead, with sacred art, and a verse and a fruit for each mystery. A Live Activity shows the decade on the Lock Screen. The Bible Seventy-three books, offline, with Vulgate psalm numbering. Psalm 22 is the shepherd psalm. Three texts: Douay-Rheims Challoner, the Catholic Public Domain Version, and the Clementine Vulgate. Search, save a verse, and keep your place. The place and the saved verses stay on this device. The Bible is included. It is not part of the subscription. Calendar The liturgical year as a month. Dots mark a solemnity, a feast, a memorial, or an optional memorial. Tap a day for the season and the celebration. Checklist The eight hours and the Rosary, plus intentions you write yourself. Intentions remain from one day to the next. A streak counts the days you complete. Daily Word One five-letter word for the liturgical season. Six guesses. Today’s English word is included. Widgets Home Screen and Lock Screen widgets show what to pray now, how far the day has gone, and the streak. Credo Premium An optional subscription. It adds reminders for the hours, the Rosary, and solemnity mornings; Latin Daily Word; the archive of recent words; one streak freeze a week; checklist changes after the three included ones; and finishing the Rosary. The Rosary can be prayed with or without the subscription. Reminder times follow the clock on the phone, including after travel. Restore a purchase in Settings. You can pray without an account. Sign in with Apple to keep the checklist, the streak, and Daily Word with you. The hours are public-domain translations of the traditional Roman Breviary. English Scripture is Douay-Rheims. Credo does not include a licensed modern Bible. Languages: English, Spanish, French, Italian, Brazilian Portuguese, and Polish. In the Bible reader the verses are English or Latin. Book titles follow the language of the app.

Screenshots

OpMedApp4 screens
Credo4 screens

Verdict

The call

The clearest difference is in-app purchases: OpMedApp at none against Credo's 4. OpMedApp also leads on iOS requirement (12.0 vs 17.6). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Credo sells 4 in-app purchases, starting at $2.99 per month. OpMedApp asks for nothing beyond the download.

UpkeepUpdate frequency

OpMedApp ships an update every 2 weeks, Credo every 10 days. The most recent releases landed on October 27, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 8 level
OpMedApp versus Credo: the parameters behind the verdict, then further details
ParameterOpMedAppCredo
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.6
Further details — not scored
Size40 MB102 MB
Age rating17+17+
DeveloperElbert MaloneyAdrian Cristin Cristache

In-app purchases

None

OpMedApp

No in-app purchases

4 purchases

Credo

Subscriptions4
  • Credo Monthly Offer3 Days trial$2.991 Month
  • Credo Premium Monthly3 Days trial$4.991 Month
  • Credo Annual Offer3 Days trial$19.991 Year
Show 1 more
  • Credo Premium Annual3 Days trial$34.991 Year

Questions

Is OpMedApp free?
OpMedApp is free to download, with no in-app purchases.
Is Credo free?
Credo is free to download, with in-app purchases available.
Do OpMedApp or Credo have ads?
Neither OpMedApp nor Credo shows ads.
Which is updated more often, OpMedApp or Credo?
OpMedApp ships an update every 2 weeks, and Credo every 10 days. Most recently, OpMedApp was updated on October 27, 2026 and Credo on November 7, 2026.

Other comparisons