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.
Aim small, miss small
$9.99
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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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.
Aim small, miss small. AimCalc turns range, wind, and weather into two numbers you can dial: elevation and windage, recomputed instantly every time an input changes. A REAL SOLVER A point-mass engine with G1 and G7 drag models, full atmospheric correction, spin drift, Coriolis, and vector incline for uphill and downhill shots. Solutions in MIL, MOA, or plain-English holdover in inches or centimeters for red dots, irons, and fixed sights. TWO NUMBERS, FAST Big, glove-friendly readouts with the direction spelled out. Slide, step, or type the exact range down to 5 yards. Save targets and swipe between them at the line. CAPTURE LIVE One tap pulls temperature, pressure, humidity, wind, and density altitude for your position. Every value can also be entered by hand, so the app works with no signal at all. Point the phone at the target to measure incline with the camera. 83 FACTORY LOADS Start from a library of common rifle and handgun cartridges, or build your own gun and load profiles. True Velocity lets you correct a load's muzzle velocity from a chronograph or an observed drop. TRAJECTORY AND D.O.P.E. Drop and drift charts with the transonic band marked, a full trajectory table, and shareable D.O.P.E. cards for the stock or the group chat. RANGE JOURNAL Log each session with the solution, conditions, load, notes, and a photo. Export and import everything as a file. APPLE WATCH The companion app solves on the wrist with the same engine. Turn the crown to change range, swipe for wind and the D.O.P.E. table, long press to share. HONEST BY DESIGN No subscription. No account. Nothing collected. Buy it once and your data stays on your device. Dark and light appearance, adjustable text size. Every solution is a mathematical estimate. Verify with live fire before relying on any output, and know your target and what lies beyond it.
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.