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.
CheckFirst 21+ makes everyday age checks simple for stores, bars, restaurants, and event staff.
$5.00
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.
Your first Build Kit is free with a verified email.
Generating… usually about a minute.
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.
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Affiliate link: CloneChart may earn a commission at no extra cost
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
CheckFirst 21+ makes everyday age checks simple for stores, bars, restaurants, and event staff. QUICK CHECKS. CLEAR RESULTS. • Scan the barcode on supported US or Canadian IDs. • Read birth and expiration dates from the front of an ID or passport. • Enter dates manually when needed. • See large, color-coded results for age 21+, underage, or expired IDs. • Get vibration and sound feedback with adjustable settings. USEFUL REPORTS View totals for today, the last 7 days, or the last 30 days. Review passed and denied checks, see daily activity, and share summary reports as PDF or CSV. SIMPLE AND PRIVATE No account or signup required. Age checks work offline. ID processing happens on your device, and scanned ID photos and personal details are not saved in customer histories. Reports contain aggregate totals. Front scanning depends on document layout, lighting, and readable text. Review detected information against the physical ID. If no expiration date is detected, inspect the ID’s expiration yourself. CheckFirst 21+ assists with age and expiration checks. It does not authenticate IDs or detect every fake ID. Always compare the photo with the person and inspect the physical document.
Written user reviews are not shown here. Check current App Store reviews >
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.
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.
Not assessed in a Build Kit yet.
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.