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
Booktionary: Camera Dictionary
An unfamiliar word shouldn’t pull you out of a good book
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included16 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 Booktionary: Camera Dictionary: map the core Reference workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
An unfamiliar word shouldn’t pull you out of a good book. Point your iPhone camera at a word, find its meaning, and keep reading. No typing needed. Find the meaning that fits the sentence Words can mean different things in different sentences. On supported devices, Booktionary uses the surrounding text to help bring the relevant dictionary meaning first. Explore other dictionary meanings whenever you need. Read English with more confidence Add word translations alongside English definitions. You can also choose translated definitions for supported destinations, then switch between English and the translation. Download the resources you need before reading. Translate words from all 23 supported non-English book languages into English. English definitions are optional where compatible translation models are available. Download once. Read offline. English definitions are built in. Download additional dictionaries, word translations and any required definition-translation models, then use the installed resources offline. No account required. One purchase, all available dictionaries and word translation packs. No subscription or in-app purchases. Book dictionaries in 24 languages Chinese (Simplified and Traditional), Czech, Danish, Dutch, English, French, German, Indonesian, Italian, Japanese, Korean, Kurdish (Kurmanji, Latin script), Malay (Rumi), Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, Thai, Turkish, Ukrainian and Vietnamese. Word translations for English books are available in the non-English languages listed above, plus Greek. Greek book scanning is not supported. Kurdish covers Kurmanji in Latin script, not Sorani; Malay covers Rumi, not Jawi. A few things to know Choose the book language, point at a word and pause briefly. Swipe the definition away to continue. Dictionary and word-translation coverage varies by word and language. Internet access is needed to browse and download language resources. Contextual matching requires iOS 26 or later with Apple Intelligence available and depends on language support. If no contextual match is available, the standard dictionary definition appears. Translated definitions require iOS 18 or later and compatible language models; availability varies by device and iOS version. Czech, Romanian, Greek, Kurmanji and Malay currently offer word translations only. Requires an iPhone with iOS 17 or later. Touch and hold a word in a definition to look it up, copy it or search Google. Return to the original entry when you are done. You can also search Google directly from a scanned word. Google search is optional, opens your browser and requires internet. Only when you choose it is the search text sent to Google. Camera images remain on your iPhone.
Written user reviews are not shown here. Check current App Store reviews >
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
Include a wide range of languages for translation.
Assumption to check: Lack of features for language options
Validate with people who use this workflow before building.
Hypothesis 2
Improve OCR accuracy with advanced algorithms.
Assumption to check: Accuracy of OCR can vary
Validate with people who use this workflow before building.
Hypothesis 3
Enable offline translation for recognized text.
Assumption to check: No offline functionality
Validate with people who use this workflow before building.
Hypothesis 4
Allow sharing translations to multiple platforms.
Assumption to check: Limited sharing options
Validate with people who use this workflow before building.
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
@react-navigation/native
expo-camera
@react-native-picker/picker
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.
