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.
One payment
$2.99
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.
Kit ready. Verify your email to download it.
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.
One payment. No subscription, no account, nothing leaves your phone. Humble Squats taps your wrist every 45 minutes and asks you to stand up and do ten squats. That is the whole app. WHY SQUATS Three trials sit behind this app. All of them broke up long periods of sitting with short bouts of leg work, and each measured something different. A 2024 trial had 18 men sit for 8.5 hours in four different ways; frequent short squat breaks produced a lower post-meal glucose response than a single 30-minute walk. A 2022 trial found squat or walking breaks increased how much of the protein from a meal went to building muscle. A 2023 trial found a minute of half-squats every 20 minutes held off the drop in cerebral blood flow and in measured focus that came with sitting still. They are small studies of young people over single days, and none of them tested ten reps every 45 minutes. Humble Squats uses ten because ten is a thing you will actually stand up and do. All three are cited in full inside the app, with links to the papers. WHAT IT DOES • Reminds you every 30, 45, 60 or 90 minutes — your choice • 5, 10, 15 or 20 squats per break • Only during the hours you are at your desk, only on the days you pick • Tap Done from the Lock Screen or your wrist. You never have to open the app. • Squatch, a small round sasquatch who is quietly pleased when you show up • A seven-day strip and a running total of every squat you have done • Apple Watch app, complication, and a Home Screen widget • Full VoiceOver, Dynamic Type, Reduce Motion and dark mode support WHAT IT DOES NOT DO • No account. There is nothing to sign in to. • No subscription. You paid once, and that is the end of it. • No network. Zero outbound requests — no analytics, no crash reporting, no remote configuration. It behaves identically in Airplane Mode. • No streaks, no badges, no points, no leaderboards. • No nagging. Miss a break and it quietly rolls into the next one. Humble Squats is meant to be forgettable. If it helps you build the habit and you stop needing it, that is the app working. Made by Humble Media.
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.