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.
Know how much of your AI subscriptions you have left — without opening five different dashboards.
$7.99
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.
Know how much of your AI subscriptions you have left — without opening five different dashboards. AI Stats tracks the usage limits on the AI accounts you already pay for and puts them where you can actually see them: on your Home Screen, on your Lock Screen, and in a single list in the app. WIDGETS • Home Screen widgets in small and medium sizes • Lock Screen widgets, circular and rectangular • A refresh button right on the widget for when you need the number now • Reset countdowns so you know exactly when your window rolls over EVERY LIMIT IN ONE LIST • See which account is closest to its limit at a glance • Colour-coded from healthy to over limit • Tap any account for a full breakdown of each limit, with progress and reset time • Plans detected automatically — Max, Pro, Plus, Ultra and the rest CONNECT YOUR ACCOUNTS THREE WAYS • Sign in to the provider inside the app • Paste an existing session • Or use an API key Supported: Claude, ChatGPT, Codex, Google Gemini, GitHub Copilot and OpenRouter. BUILT TO STAY ON YOUR DEVICE There is no AI Stats account and no AI Stats server. Your credentials are stored in your iPhone's Keychain and sent only to the provider they belong to. Your usage history stays on your device. Nothing is synced anywhere, because there is nowhere to sync it to. A NOTE ON REFRESHING iOS does not let apps poll continuously in the background. AI Stats updates when you open it, when the system grants background time, and when a widget reloads — and every screen tells you how old the number is, so you are never looking at a stale figure that pretends to be live. Tap refresh on the widget any time you want the latest. AI Stats is also available for Mac, where it lives in your menu bar.
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.