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.
App Overview
Book of Shadows
Version II of our Book of Shadows is Now Available and it has been rebuilt from the ground up with some GREAT new features!
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.0
60 ratings · Top 30%
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.
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
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Book of Shadows: map the core Utilities 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 templates and customization features.
Assumption to check: Limited customization options for spells.
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced search and filter options.
Assumption to check: Difficult to navigate large lists of spells.
Validate with people who use this workflow before building.
Hypothesis 3
Add online resource links for spell references.
Assumption to check: No integration with external sources for spell information.
Validate with people who use this workflow before building.
Hypothesis 4
Standardize formatting options for journal entries.
Assumption to check: Inconsistency in journal entry formatting.
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
Version II of our Book of Shadows is Now Available and it has been rebuilt from the ground up with some GREAT new features! Whether you are starting out, a seasoned Wiccan/Pagan or just interested in Herbs, Crystals and Essential Oils, Book of Shadows brings you a synergy of Old World Knowledge and Cutting Edge Technology. While Book of Shadows presents itself as an electronic version of your Traditional Book of Shadows, the real strength lies in the handy references and over 200 spells that it brings to the table. We would never expect a true Wiccan/Pagan to give up their traditional Book of Shadows, but it is nice to know that you can always keep a copy of your Book of Shadows with you. The References also provide a wide range of information on Spells and Spell Casting, Herbs, Crystals, Essential Oils, A Well Expanded Glossary and much more. Additionally, all of this information is available off-line, so if your favorite Apothecary is out of cell range and you're looking for that special Crystal, Herb or Essential Oil then your Book of Shadows is still only a tap away! Book of Shadows is all about positive energies and does not contain anything which is harmful to others or deals in the darker side of magick (occult, Black Magick). For more information about Book of Shadows check out http://www.bookofshadows.com.au/
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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
Zustand
@react-navigation/native
react-native-gesture-handler
@shadcn/ui
BUILD KIT DIFFICULTY
Starter
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.
