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
Mockuply
Mockuply - Simple Mockups, Anywhere
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
7 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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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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 Mockuply: map the core Graphics & Design 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
Allow more flexible editing features and advanced tools.
Assumption to check: Limited template customization options
Validate with people who use this workflow before building.
Hypothesis 2
Offer clearer explanations for subscription benefits and trial options.
Assumption to check: In-app purchases may be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate social sharing options to showcase designs.
Assumption to check: Lack of community sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Optimize the app for better performance with larger assets.
Assumption to check: Performance issues with large projects
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
Mockuply - Simple Mockups, Anywhere Turn your ideas into visual mockups in seconds. Whether you're designing an app, planning a website, or sketching a new feature, Mockuply makes it effortless to create and share your vision. Create with Ease - Draw freely with our intuitive scribble tool - Add rectangles, circles, and lines with a tap - Insert and style text anywhere on your canvas - Select, drag, and resize any element perfectly - Add notes to capture important details AI-Powered Enhancement - Transform rough ideas into mockups with our Generate feature. One tap turns your notes into quick wireframe. Share Instantly - Export your mockups as images and share them anywhere using iOS's built-in share sheet. Send to colleagues, save to photos, or drop into your favorite apps. Always in Sync - Your mockups automatically save to iCloud - work on your iPhone, continue on your iPad. No account creation, no sign-ups, no passwords. Just open and create. Perfect For: - Product managers sketching new features - Designers exploring quick concepts - Developers planning interfaces - Anyone who thinks visually Start creating mockups the moment inspiration strikes. With Mockuply, your ideas are always just a few taps away from becoming shareable designs.
Written user reviews are not shown here. Check current App Store reviews >
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
Supabase
React Navigation
Zustand
React Native Reanimated
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.
