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.
Organize contacts, manage groups and create mailing lists for SMS and email.
$1.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
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.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for GroupsPro: 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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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
Assumption to check: Limited integration with third-party tools
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No offline access to group data
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of advanced notification settings
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Weak user onboarding process
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Organize contacts, manage groups and create mailing lists for SMS and email. Create groups, assign contacts to them and reach multiple recipients at once. Create flexible mailing lists that can include entire groups or individual contacts and export contact data when needed. Features: • Create and modify groups of address book contacts • Assign contacts to groups (single and fast assigning) • Create and modify mailing lists for mass SMS and emails • Send files (e.g. Word, Excel, PDF) and photos with mass email • Search for names, phone numbers, email addresses, postal addresses, departments and notes within all contacts • Company name on the list • Export to Excel and CSV files • GroupsPro own grouping (e.g. for Exchange) • See details of your contacts • Access protection by passcode or Touch ID / Face ID • Transfer the mailing lists to another device with Bluetooth • Help (see "More/Help" within the app) • And more Pay once – install and use it on multiple devices (iPhone/iPad) with the same App Store account or Family Sharing. ------------------------------------------------------- Grouping for some address books (e.g. Exchange) is not supported from iOS respectively from the concerning address book. For contacts of such address books GroupsPro offers its own grouping.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.