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
Q-Decode
Discover Your Synchronicity!
$12.99 · In-app purchases
PRICE
$12.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 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 included12 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 Q-Decode: 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
Add features like favorites, tagging, or categorizing scans.
Assumption to check: Limited features beyond scanning QR codes
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize the camera overlay or themes.
Assumption to check: Lack of customization options
Validate with people who use this workflow before building.
Hypothesis 3
Implement advanced scanning algorithms for higher accuracy.
Assumption to check: Inconsistent scanning performance
Validate with people who use this workflow before building.
Hypothesis 4
Integrate sharing capabilities to social media or messaging apps.
Assumption to check: No sharing options for scanned content
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
Discover Your Synchronicity! What started as a massive spreadsheet for Hollywood astrologer Russell Olsen, then a compiled basic program (CBASIC) running on CP/M, and a Borland Turbo BASIC version for MS-DOS, Q-Decode, is now available for all iOS devices and on Mac PCs. Q-Decode by GridQ is a professional numerology decoding/calculator program that is easy to use. It enables you to enter names, dates, letters, or numbers in any combination. Q-Decode will then break down the data and present its numerological basic digit. Q-Decode features: - Straight decoding method - Stacked decoding method (for dates) - Vowel Filtering - Consonant Filtering - Number Filtering - Modern, Pythagorean, Chaldean, and Crowly Number Systems - Letter 'Y' preferences Synchronicity and Q-Decode In the 1950s, Carl G. Jung coined the word synchronicity, which the Oxford American dictionary defines as, "the simultaneous occurrence of events that appear significantly related but have no discernible causal connection." The numerology of names, dates, places, telephone numbers, house addresses, etc., are one way in which the synchronicity of your life can be revealed. Example: One of our programmers discovered that his full name is a '7' and his birth date is also a '7'. This number has also popped up in many other aspects of his life including even the serial number of his Mac laptop! Why? Well, the 'why' is subject to much interpretation. Q-Decode is a tool for revealing these fascinating 'hidden' little mysteries. The meaning is left for you to discover...
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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
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@react-native-async-storage/async-storage
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.
