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
Scrollie: Long Screenshot
Scrollie turns screen recordings or sequential screenshots into one clean, seamless long screenshot in seconds.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
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 included18 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 Scrollie: Long Screenshot: 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
Add basic editing tools like cropping and annotations.
Assumption to check: Limited editing features for screenshots.
Validate with people who use this workflow before building.
Hypothesis 2
Implement iCloud sync for user captures.
Assumption to check: No cloud backup for historical captures.
Validate with people who use this workflow before building.
Hypothesis 3
Offer customization for resolution and format of screenshots.
Assumption to check: No option to customize capture settings.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate sharing to social media platforms.
Assumption to check: Lack of social sharing options.
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
Scrollie turns screen recordings or sequential screenshots into one clean, seamless long screenshot in seconds. Whether you are saving chat history, social feeds, web pages, or notes, Scrollie makes long content easy to capture, edit, and share. Key features: • Convert screen recordings into long screenshots automatically • Stitch multiple screenshots into one seamless image • Smart overlap detection for cleaner, more natural results • Smart Cleanup to detect and remove scrollbars from long screenshots • Built-in editing tools: doodle, mosaic, and watermark • Drafts with auto-save, so you can pause and continue anytime • High-quality export for saving and sharing Privacy first: All processing is done on-device. Your screenshots and recordings are not uploaded to our servers. Scroll, Stitch, Share. In-App Purchases: • Lifetime Pro Access • Pro Monthly Subscription (1 month) • Pro Annual Subscription (1 year) Prices may vary by region and are shown in the app before purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
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styled-components
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.
