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
Emoji Keyboard PRO +
The app with the new style 1.500 emoticons in 3D and animated
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.9
10 ratings · Below Average
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 included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Emoji Keyboard PRO +: map the core Entertainment workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Offer daily/weekly updates with new emojis.
Assumption to check: Limited emoji selection compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Optimize loading times and animations for a smoother experience.
Assumption to check: Slow performance and lagging interface
Validate with people who use this workflow before building.
Hypothesis 3
Implement better categorization and search features.
Assumption to check: Unintuitive interface for finding emojis
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to create custom emoji packs and themes.
Assumption to check: Limited customization options for keyboards
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
The app with the new style 1.500 emoticons in 3D and animated. We have them all! Send natively any emoji to Whatsapp! NEW: Word Maker. Create your own emoji words! NEW: Enable your Emoji keyboard, we teach you how to do it NEW: Over 20 categories including default emojis NEW: New feature ... Emoji XL NEW: Emoji Text Maker feature, enhanced NEW: New Keyboard NEW: New App for iMessages You can also share on Twitter, Facebook, Mail, iMensajes, Viber or Hangouts. With this app you can include all emojis there in the app on any of your communication tools. Emojis separated into categories so that you can find the emoji you want to use easily. What are you waiting for download? Do it now and Save 50% since this is an introductory price. Features: - Word Maker with Emoji - Categorized Emojis (+3000) - Over 1.500 new 3D emojis - Send the emojis in any of your apps (Twitter, Facebook, Mail, iMensajes, Viber, Hangouts or Whatsapp!) - Animated Emojis Disclamer: Product unofficial. This application is not endorsed by or affiliated with Whatsapp, its name, trademark, and other aspects of the application are the trademarks and property of their respective owners.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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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
Expo
react-navigation
redux
react-native-gesture-handler
expo-modules
BUILD KIT DIFFICULTY
Intermediate
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.
