--- title: "Heidelberg Catechism (RCUS) - Reviews, Revenue and Downloads in United States | Apple App Store" description: "The Heidelberg Catechism app provides three tabs to help you memorize all 129 questions and answers of the 2025 RCUS Modern English Edition of the Heidelberg Catechism: 1) Review Tab Browse the c" --- # Heidelberg Catechism (RCUS) — United States > The Heidelberg Catechism ![Heidelberg Catechism (RCUS) App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/51/8e/64/518e64b0-6e9a-1839-f7b5-7e4571978bef/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png) **Developer:** [Andrew Dirks](https://apptail.io/developer/andrew-dirks-mNoc) **Category:** Reference **Rating:** 5.0/5 (2 ratings) **Price:** Free **Bundle ID:** Gloorfindel.Heid2 **Store:** Apple App Store **Country:** United States **Version:** 2.0.0 (released 2026-02-18) **Original Release:** 2019-11-17 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1443296306) **AppTail Page:** [https://apptail.io/app/heidelberg-catechism-rcus-uoVe/united-states](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/united-states) ## Heidelberg Catechism (RCUS) Description The Heidelberg Catechism app provides three tabs to help you memorize all 129 questions and answers of the 2025 RCUS Modern English Edition of the Heidelberg Catechism: 1) Review Tab Browse the complete catechism sequentially. Each question displays its full answer for reading and initial memorization. Mark questions as mastered to track your progress. 2) Practice Tab Study questions one at a time with guided assistance. Filter the list by All, Mastered, or Unmastered questions, then tap any question to practice it. Use the Hint or Show Answer buttons to check your recall, and navigate to the previous or next question in your filtered set without returning to the list. Mark questions as mastered as you go. 3) Quiz Tab Test your knowledge with randomly selected questions. Configure a question range to focus on a specific subset, or enable Only Include Mastered to quiz yourself exclusively on questions you've already marked as mastered. Use the Hint and Show Answer buttons to check your answer, and mark questions as mastered directly from the quiz. Text of the Heidelberg Catechism copyrighted 2025 by RCUS. Used with Permission. Icon background image by Aaron Burden. ## Heidelberg Catechism (RCUS) Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/6a/fd/4f/6afd4f55-b7fe-f9aa-0142-6ec8f94e9629/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M5_U0029_-_2026-02-15_at_13.01.06.png/2064x2752.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ca/58/38/ca58381c-6af5-1d53-3bd1-20472d6409e2/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M5_U0029_-_2026-02-15_at_13.01.12.png/2064x2752.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0a/5b/45/0a5b4537-1704-9a03-3353-fdbe9c445dc2/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M5_U0029_-_2026-02-15_at_13.01.17.png/2064x2752.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c0/47/64/c04764d8-f58e-946c-4bc1-d86cdf37d887/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M5_U0029_-_2026-02-15_at_13.02.01.png/2064x2752.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3f/06/26/3f062670-6979-8485-0a25-1eb6b161632b/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M5_U0029_-_2026-02-15_at_13.01.23.png/2064x2752.png) ## Heidelberg Catechism (RCUS) Rating Breakdown in United States - 5 stars: 2 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Heidelberg Catechism (RCUS) Reviews in United States ### ***** "Where are the footnotes?" The app works fine with questions and answers, and the quizzes, etc. HOWEVER, you have the little footnotes in the text, but they don’t link to the scripture verses. That would be nice if they worked. THANKS. Hurray- they did it! Wonderful addition of the scripture proof texts. They work very well. Thank you!! -- greenbranch, 2026-02-20 [View all Heidelberg Catechism (RCUS) reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Apps Similar to Heidelberg Catechism (RCUS) - [Reformed Companion](https://apptail.io/app/reformed-companion-lTAd/united-states) - [ReformedApp](https://apptail.io/app/reformedapp-REUe/united-states) - [The Psalter 1912](https://apptail.io/app/the-psalter-1912-yidf/united-states) - [WSCinME](https://apptail.io/app/wscinme-Ftvi/united-states) - [1650 Split Leaf Psalter](https://apptail.io/app/1650-split-leaf-psalter-xrtj/united-states) - [WSC Kids](https://apptail.io/app/wsc-kids-sePn/united-states) - [Westminster Standards](https://apptail.io/app/westminster-standards-QGjo/united-states) - [Heidelapp](https://apptail.io/app/heidelapp-dEXp/united-states) - [Calvin's Latin Bible](https://apptail.io/app/calvins-latin-bible-IaKv/united-states) - [웨스트민스터 소요리문답 107](https://apptail.io/app/107-RMPx/united-states) ## Heidelberg Catechism (RCUS) Available In - [United States](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/united-states) - [United Kingdom](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/united-kingdom) - [Japan](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/japan) - [Nepal](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/nepal) - [New Zealand](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/new-zealand) - [Philippines](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/philippines) - [Singapore](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/singapore) - [Vietnam](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/vietnam) - [Canada](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/canada) - [South Africa](https://apptail.io/app/heidelberg-catechism-rcus-uoVe/south-africa) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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