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.
How do you explain the Feast of the Epiphany to a six-year-old? How do you make Lent meaningful for your whole family? Sacra is more than a calendar
$0.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Sacra: Church Calendar: map the core Lifestyle workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
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
Assumption to check: Limited event filtering options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of notifications for events
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Basic design and user interface
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
How do you explain the Feast of the Epiphany to a six-year-old? How do you make Lent meaningful for your whole family? Sacra is more than a calendar. It is a guide for living the beauty of the church year together. A LIVING CALENDAR At the heart of Sacra is an interactive calendar wheel that guides you through all eight seasons: Advent, Christmas, Epiphany, Lent, Holy Week, Easter, Pentecost, and Ordinary Time. The colors, themes, and imagery shift with the seasons, helping your family feel the rhythm of the church year as it unfolds. FAMILY ACTIVITIES FOR EVERY SEASON Sacra includes activities for every season: crafts, devotionals, service projects, recipes, and more. Each one comes with step-by-step instructions, a materials list, age recommendations, and a Scripture connection. They are designed to help families experience the church year together in simple, meaningful ways. MORNING & EVENING PRAYER Each day offers a morning and evening prayer rooted in the themes of the current season. From the quiet hope of Advent to the bold joy of Easter, every prayer is thoughtfully written and paired with Scripture from the World English Bible. There are prayers here for every day of the year, written to draw you deeper into each season's meaning. THE REVISED COMMON LECTIONARY The complete three-year lectionary cycle is included, with Old Testament, Psalm, Epistle, and Gospel readings for every Sunday and major feast day. Full Scripture text is right in the app, so you can read and reflect without needing anything else. THE STORY BEHIND THE SEASONS Each season and feast day includes historical context, theological reflection, and notes on how different traditions observe it. These are not dry encyclopedia entries. They are written to help you understand and love the church year more deeply. YOUR TRADITION, HONORED During setup, you choose your tradition, and Sacra adapts. Anglican and Lutheran users see additional feast days. Terminology and Advent color options adjust to match your background. Throughout, Sacra follows the Revised Common Lectionary, the shared calendar of readings used across Protestant traditions, so the heart of the church year stays the same wherever you worship. DESIGNED FOR CONTEMPLATION The seasonal color palette, warm watercolor illustrations, and thoughtful typography are all designed to create a quiet, inviting space. This is an app meant to slow you down, not speed you up. WIDGETS FOR YOUR HOME SCREEN Stay connected to the church year from your home screen, lock screen, or StandBy mode. Widgets show the current season, a daily verse, and upcoming feast days. YOUR PRIVACY, RESPECTED Sacra makes zero network requests. There are no analytics, no tracking, no accounts, and no data collection of any kind. Everything runs entirely on your device. ACCESSIBILITY Sacra is a universal app for iPhone and iPad, with full VoiceOver support, Dynamic Type, Dark Mode, and Reduce Motion support. The iPad version includes sidebar navigation and full multitasking. ALSO INCLUDED - Apple Calendar export for the full church year - Search across prayers, activities, feast days, and readings - Favorites and activity completion tracking Sacra is a one-time purchase with no subscriptions, no in-app purchases, and no ads. Just a faithful companion for the Christian year, made with care.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.