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
Griddy Pro: Split Pic in Grids
Instagram is a nice Photo Sharing app where you can share photos with millions of people
$19.99 · In-app purchases
PRICE
$19.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.9
127 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/
Preview a sample Build Kit No email needed
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 Griddy Pro: Split Pic in Grids: map the core Social Networking 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
Offer more customizable grid sizes and aspect ratios.
Assumption to check: Limited grid size options
Validate with people who use this workflow before building.
Hypothesis 2
Integrate direct sharing to social media platforms.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Add basic photo editing features like filters and cropping.
Assumption to check: Lack of editing tools
Validate with people who use this workflow before building.
Hypothesis 4
Implement tiered subscription models to attract more users.
Assumption to check: High one-time cost
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
Instagram is a nice Photo Sharing app where you can share photos with millions of people. But what if we change the way we normally post on Instagram by posting the photo in Huge Grid which people can see your photo even better and bigger. Griddy helps you split your image into square grids and allows you to post to Instagram easily and quickly with different grid layouts. Main Features: • Grid Post: split your photo into any Grid Layouts up to 10 rows using Grid Preset selection by tapping on [+]. You can also quickly select a predefined grid layout (1x3, 2x3, 3x3, 4x3) for your photo by tapping on the number button on the top. • Carousel Post: easily split your Panorama photo into one Instagram post easily using Carousel Preset selection which allows you to split up 10 grids in any sizes such as Square, Portrait, Landscape and Story. • Watermark Tool: add copyright, signature, or your Brand logo to your Grid Posts or photos. Watermark your photo for Instagram with different layouts (Square, Portrait, Landscape). • Render and split your photo by keeping the original resolution and in HD. • Post each grid to Instagram easily with clear instruction. • Save photo or grid photos to PhotoLibrary in HD. • Minimal UI Design makes it easy for you to select the right tool you need Use Griddy to create an outstanding Instagram feed, promote your personal work or your business and attract more audiences. Follow our Instagram account @GriddyApp to get inspired and see grid posts made with Griddy! If you enjoy using our app, we would greatly appreciate it if you rate and leave a review on AppStore. If you have any suggestions or feedback, contact us at [email protected]. We would love to hear from you.
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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.
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BUILD KIT DIFFICULTY
Intermediate
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.
