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.
BiggerKeys is a keyboard built for hands that don't always cooperate.
$4.99
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.
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Combine features and design from your favorite apps.
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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.
Rork plan preview for BiggerKeys: Large Key Typing: map the core Health & Fitness workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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.
Hypothesis 1
Assumption to check: Lack of customization options for keyboard layout
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited accessibility features for visually impaired users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No multi-language support
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No user feedback mechanism
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
BiggerKeys is a keyboard built for hands that don't always cooperate. If a tremor, Parkinson's disease, or another motor-control condition makes the standard keyboard feel like a moving target, BiggerKeys gives you bigger keys, more breathing room between them, and gentle features that quietly forgive the kind of mistakes a shaky hand tends to make. It was designed with the people who need it in mind, and it works in any app where you can type. KEYS THAT FIT YOUR HANDS Make the keys as large as you like and add as much space between them as you need. You set the size and spacing, so the keyboard fits you, instead of the other way around. GENTLE ON TREMOR BiggerKeys is built to reduce typing mistakes, not to judge them: - Keys respond when you lift your finger, not the instant you touch down, so a brush against the wrong key won't type it. - An adjustable debounce quietly ignores accidental double-taps on the same key. - An optional dwell-to-confirm mode types a key only after your finger rests on it for a moment, for steadier, more deliberate input. EASY TO SEE Turn on the high-contrast theme and larger fonts for crisp, clearly outlined keys that are easy to read, including for low vision. A press-preview magnifier pops the key you're touching up above your finger so you can confirm it before you commit. WORKS IN YOUR LANGUAGE BiggerKeys follows your device's language automatically, so you get QWERTY, AZERTY, or QWERTZ as appropriate, and you can override the layout by hand whenever you prefer. FEEDBACK THE WAY YOU LIKE IT Optional sound on each key press helps confirm your typing, and works without any special permissions. If you'd like a physical buzz as well, BiggerKeys can add haptic feedback. This is the only reason it ever asks for Allow Full Access, and it is completely optional. Core typing always works without it. PRIVATE BY DESIGN Your words are yours. BiggerKeys has no network access, collects no data, and never logs or stores what you type, not on your device, and certainly not anywhere else. Nothing leaves your phone. Even if you enable Full Access for haptics, the keyboard still sends nothing, anywhere. There are no accounts and no tracking. GETTING STARTED Open the BiggerKeys app and follow the short setup. You'll add BiggerKeys in Settings, then switch to it with the globe key in any text field. Adjust the size, spacing, theme, and feedback in the app until it feels right, with a live preview that shows your changes as you make them. A NOTE ON CARE BiggerKeys is a typing aid, not a medical device, and it makes no medical claims. It's simply meant to make everyday typing a little easier and a little less frustrating, for the people using it and for the caregivers who help set it up. We'd love your feedback. If something could be easier, tell us, and we'll keep making it better.
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.