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.
You got the selfie
$5.99
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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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.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
You got the selfie. Now get the signature. Hand them your phone, let them sign the photo right on the screen, and keep an autograph that never smudges, fades or gets lost in a drawer. HOW IT WORKS 1. Take the selfie together — front or back camera, with flash, zoom and flip built in. 2. Hand over your phone. They sign directly on the photo with a fingertip. 3. Add a frame, save it, and it is yours to keep. WHY A DIGITAL AUTOGRAPH BEATS PAPER - Nothing to carry — no book, no marker, no scrap of paper to dig out. Your phone is already in your hand. - It never fades — ink on paper smudges and yellows. This does not. - Signed on the moment itself — the autograph sits on the photo of the two of you, not on a separate page you will lose. - Met the whole group? Everyone signs the same photo, each in their own pen colour. MADE FOR THE MOMENT - Handwriting, not a font — a real signature drawn by hand, in their hand. - Every signature can be moved, resized, rotated, recoloured or removed until it sits exactly right. - Finish it with a decorative frame, the way you would frame the real thing. - Re-crop the photo at any time without losing a single stroke. - Composed instantly on your device, so there is no waiting in front of someone who is about to walk away. BUILD YOUR COLLECTION Save an unfinished signing as a draft and come back to it later with every stroke, colour and frame intact. Star your best ones and find them in Favourites. Download in full quality to your camera roll, share the image directly, or send a private link. PERFECT FOR - Concerts, stage doors and meet and greets - Conventions, comic cons and premieres - Games, matches and player signings - Any time you meet someone you will want to prove you met Some moments deserve more than a photo. Get it signed.
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.
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.