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.
Fineology is the original promotion-exam prep
Free
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.
Fineology is the original promotion-exam prep. We pioneered this way of studying 14 years ago, and we've spent every exam since perfecting it. Now that experience is built for the Sergeant's exam: real exam-style questions drawn from the Patrol Guide and Administrative Guide, each with a clear explanation of why the right answer is right, and why the others aren't. WHY CANDIDATES CHOOSE FINEOLOGY • The original - 14 years perfecting how people study to promote, so you get the polished version, not the prototype • Explanations that teach the procedure, not just the answer • Every wrong choice explained too - four explanations per question, not one • Written by people who have sat the exam, in plain English • Fresh questions added throughout the season • One-time purchase. No subscription, no auto-renew WHAT'S INSIDE • Question of the Day - a new question every morning, free forever, with a streak to keep • Full Exam - a timed, 100-question simulation of the real thing • Quick Question - one random question whenever you've got a minute • Target Sections - drill the exact procedures you're weakest on • Progression Sprint - a short, escalating easy-to-hard run • More than 1,700 questions across the Patrol Guide and Administrative Guide • Detailed explanations with the Patrol Guide / Administrative Guide reference on every question • Hints when you want a nudge instead of the answer • Reference section - acronyms and terms, searchable • Progress tracking - overall score, accuracy, and study streaks • Your strongest and weakest sections, ranked, so you know where the time goes • Full exam history - revisit any exam and review every answer • Built for iPhone and iPad, in light and dark HOW PEOPLE USE IT Answer the Question of the Day on the way in. Drill a weak section on your meal. Sit a full timed exam on your day off. The app keeps score across all of it, so the picture of where you stand builds itself while you study. Whether you have months or weeks, Fineology helps you walk in ready. Prepare to promote.
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.