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
Gmoji: AI Emoji Maker
Tired of the same old emojis? Welcome to Gmoji – the ultimate playground for creating one-of-a-kind emojis that truly express you
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
31,031 ratings · Top 15%
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.
Build your own version
Build Kit
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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.
What's included15 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 Gmoji: AI Emoji Maker: map the core Graphics & Design 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 more adjustable parameters for emoji creation.
Assumption to check: Limited emoji customization options compared to other apps
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced search and filtering features.
Assumption to check: Difficult to find specific emojis in large collections
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the sharing process and integrate social media platforms.
Assumption to check: Sharing options may not be intuitive
Validate with people who use this workflow before building.
Hypothesis 4
Optimize image loading and rendering for better performance.
Assumption to check: Performance issues with loading many emojis
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
Tired of the same old emojis? Welcome to Gmoji – the ultimate playground for creating one-of-a-kind emojis that truly express you. Whether you're looking to spice up your chats, create the perfect reaction meme, or just have fun, Gmoji gives you the power to be endlessly creative. Merge & Create - Combine your favorite emojis and even your own photos to craft something entirely new. The only limit is your imagination. Create a laughing cat, a pizza with a crown, or a custom avatar of your best friend. It’s mixing and matching made magical. Text to Emoji - Type a phrase and watch the magic happen. Instantly transform your words—“Happy Birthday,” “Epic Win,” “Mood”—into a custom, visual emoji masterpiece. It’s the fastest way to say exactly what you mean, with style. Turn Photos into Emoji - See a face that’s just too good to forget? Snap a pic and Gemmoji will instantly turn it into a personalized emoji. Perfect for capturing real-life reactions and inside jokes. YouMoji Packs - Choose a vibe, upload a photo, and create a personalized pack of YouMojis! Now you can send custom emojis that look like you or your friends—yours alone, totally unique. Why You'll Love Gmoji: · Millions of Curated Emojis · Your Personal Emoji Collection: Save all your creations in 'My Emoji' for easy access. · Share the Fun Instantly: Send your custom creations directly to iMessage, WhatsApp, Instagram, and more. · Endless Inspiration: Explore themed packs for every occasion and mood. Ready to Redefine Your Conversations? Download Gmoji Now and Start Creating! Privacy Policy: https://massiveappsfzco.com/privacy-policy/ Terms of Use: https://massiveappsfzco.com/terms-of-use/
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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
Supabase
Zustand
react-navigation
expo-image-picker
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.
