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
Scanner App: Genius Scan
Genius Scan is a document scanner app in your pocket
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
1,375,034 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.
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 Scanner App: Genius Scan: map the core Business 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
Genius Scan is a document scanner app in your pocket. Quickly scan your paper documents on the go and export them as multi-page PDF files. *** Apple App of the Week *** 20+ million users *** 1000s of small businesses *** Place any document in front of your device’s camera: our scanner app automatically recognizes the paper against the background, crops it, and cleans up the result. You obtain a crisp, legible scan. Batch scanning lets you scan dozens of pages in a matter of seconds. Powerful tools help you organize, share, or archive your documents. “Next time you plan to hit the road, don’t forget to download Genius Scan to make life easier for yourself and your accounting department.” - AppPicker.com “Camera apps aren’t designed for close-up text scanning, but Genius Scan is.” - The Guardian == KEY FEATURES == Smart Scanning: - Document detection & background removal - Distortion correction - Shadow removal and defect cleanup - Filters (black & white, whiteboard, photo) - Batch scanning PDF Creation & Editing: - Document merging & splitting - Multiple page PDF creation - Photos and PDF import Security & Privacy: - On-device document processing + Face ID locking + PDF password encryption Document Organization: - Document tagging - Metadata and content search + Smart document renaming (custom templates, …) + Backup and multi-device sync with Genius Cloud (separate subscription) Export: - Email + Box, Dropbox, Evernote, Expensify, Google Drive, iCloud Drive, OneDrive, OneNote, FTP, SugarSync, WebDAV. + Any WebDAV compatible service such as Citrix ShareFile, NextCloud, ownCloud, Synology, Yandex. + Automatic background auto-export OCR (Text Recognition): + Text extraction + Searchable PDF creation + Business card scanning & contact creation The features denoted with [+] are available as part of a premium plan. == ABOUT US == It’s in the heart of Paris, France that The Grizzly Labs develops Genius Scan. We take pride in crafting apps that help millions of users throughout the world and hold ourselves to the highest standards in terms of quality and privacy. Get in touch with us @thegrizzlylabs if you have any questions. == PRICING & LEGAL == Genius Scan is free to use for as long as you want. Should you choose to, you can subscribe to the Genius Scan Plus plan for more features. You can subscribe to Genius Cloud for backup & synchronization. In that case, Genius Scan’s store displays the duration and price of each subscription, updated at the time of purchase. Payment will be charged to iTunes account when the order is confirmed. Subscriptions automatically renew unless auto-renew is turned off no later than 24 hours before the end of the current period. Manage subscriptions, disable auto-renewal in the iTunes account settings. Download the best free mobile scanner and scan your documents in a snap. https://www.thegrizzlylabs.com/genius-scan/cloud/terms
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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
Implement smart lighting adjustments and filters for better scans.
Assumption to check: Inconsistent scanning quality in different lighting conditions
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to tag documents and use a better search algorithm.
Assumption to check: Difficult to organize large numbers of documents
Validate with people who use this workflow before building.
Hypothesis 3
Introduce advanced editing tools for cropping and enhancing scanned images.
Assumption to check: Limited editing features post-scan
Validate with people who use this workflow before building.
Hypothesis 4
Create clearer messaging around free vs premium features during onboarding.
Assumption to check: Paywall can be confusing for users
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
Zustand
Supabase
react-navigation
expo-camera
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.
