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.
App Overview
Bindirgal Pro Keyboard
Bindirgal Pro is the keyboard made for Pulaar (Fula, Fulfulde, Peul)
$2.99
PRICE
$2.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
2 ratings · Top 5%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Bindirgal Pro Keyboard: map the core Utilities workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Bindirgal Pro is the keyboard made for Pulaar (Fula, Fulfulde, Peul). Every special letter is right on the keyboard, and the keyboard understands Pulaar as you type. MADE FOR PULAAR • ɓ ɗ ŋ ñ ƴ on the main keyboard, highlighted so you can find them instantly • Hold b, d, n or y for ɓ, ɗ, ŋ, ñ, ƴ and prenasals like mb, nd, ng, nj • Hooked letters fixed for you: type "fulbe", get "fulɓe". Tap delete to undo • Word suggestions as you type, and next-word predictions for common phrases • Learns the words you type most, on your device only TYPES LIKE THE KEYBOARD YOU KNOW • Familiar QWERTY layout with numbers, symbols and emoji • Slide on the space bar (ŊALDE) to move the cursor • Double-tap space for a period, automatic capitals, caps lock with a double tap on shift • Light and dark mode, iPhone and iPad, portrait and landscape PRIVATE BY DESIGN • Works completely offline • Does not ask for Full Access • Nothing you type is collected or sent anywhere Use Bindirgal Pro in WhatsApp, Messages, Facebook, email, notes — anywhere you type. SET UP IN SECONDS 1. Open Settings → General → Keyboard → Keyboards 2. Tap "Add New Keyboard…" and choose Bindirgal Pro 3. Tap or hold the globe key while typing to switch to it Jam tan! Celebrating the Pulaar language.
Written user reviews are not shown here. Check current App Store reviews >
Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Expand language support to include more African dialects.
Assumption to check: Limited language options compared to other keyboard apps
Validate with people who use this workflow before building.
Hypothesis 2
Improve key press feedback and responsiveness.
Assumption to check: Difficulties with key responsiveness
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize their keyboard layouts and themes.
Assumption to check: No customization options for keyboard layout
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate voice input and text-to-speech functionalities.
Assumption to check: Limited accessibility features
Validate with people who use this workflow before building.
Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
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react-native-custom-keyboard
expo-clipboard
BUILD KIT DIFFICULTY
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.
