App Overview

Universalis icon

Universalis

Universalis Publishing · Lifestyle

Universalis is a missal and a breviary, and more besides

$9.99 · In-app purchases

PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.9
9,476 ratings · Top 5%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Free quick prompt For a smaller starting point

Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Universalis: map the core Lifestyle workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Provide more free resources to attract users

Assumption to check: Limited free content available

Validate with people who use this workflow before building.

Hypothesis 2

Simplify subscription management and renewal reminders

Assumption to check: Subscription confusion with renewal

Validate with people who use this workflow before building.

Hypothesis 3

Implement offline mode for reading access

Assumption to check: No offline access to readings

Validate with people who use this workflow before building.

Hypothesis 4

Enhance navigation with better categorization or tagging

Assumption to check: Difficult navigation between readings

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store 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. Tens of thousands of people use Universalis daily. Come and join them! • Single purchase: the app lasts for ever. It does not need a subscription to make it work. • No Internet needed: everything you need is already built in. • No cleverness needed: each day, Universalis 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. • Optional add-on: spoken audio read by real human beings (this needs a subscription: see below). • Latin if you want it: by itself or alongside the English. • Help and support: tips and instructions are included; or press “Contact Us” to send us a message, and we will reply. EXTRA MATERIAL • The “About Today” page tells you what saints are being celebrated today, worldwide. It includes reflections, biographies and illustrations. • “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. • “The Rosary” has a verse of Scripture for every Hail Mary of every Mystery. Spoken audio is included. • 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 – Home Screen widgets; liturgical events for your iOS calendar; daily email service; copy and paste into other apps; reminders and alarms; Mass readings on your Apple Watch. LITURGY OF THE HOURS (Divine Office) 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 – United States: RSV. Elsewhere: Jerusalem Bible (with RSV as an optional add-on). READINGS AT 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, as used at Mass in most of the English-speaking world. 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 and terms of service: universalis.com/n-ios-privacy.htm

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
Supabase
Zustand
React Navigation
Axios
BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.