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
HeyMoji: Chat Emoji & Stickers
Can‘t find the right meme when you need it? Snap one, make a GIF, or grab a ready-made pack — everything you need to level up your chats.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
536 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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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.
JavaScript is required to complete mailbox verification.
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 HeyMoji: Chat Emoji & Stickers: map the core Entertainment workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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
Allow more filters, stickers, and editing tools.
Assumption to check: Limited customization options for users
Validate with people who use this workflow before building.
Hypothesis 2
Optimize app for better performance on lower-end hardware.
Assumption to check: Inconsistent performance on older devices
Validate with people who use this workflow before building.
Hypothesis 3
Integrate sharing options with social media platforms.
Assumption to check: Lack of social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Implement a freemium model with more free features.
Assumption to check: Subscription model may deter free users
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
Can‘t find the right meme when you need it? Snap one, make a GIF, or grab a ready-made pack — everything you need to level up your chats. Meme Packs – Find the Perfect Meme in Seconds Memes are organized by theme, mood, and scene, with new packs added regularly. Keep your chats lively and your meme game strong. Quick Capture – Snap It, Meme It Open the camera, capture a moment, and turn it into a meme right away. Edit on the spot: - Speed up or slow down to make the action funnier - Add text to say exactly what’s on your mind Video & Photo to GIF – Full Creative Control Import videos or photos and convert them to GIFs with one tap. The built-in editor gives you everything you need: - Speed up or slow down to get the timing right - Add a background to change up the scene - Add text to bring your thoughts to life - Add stickers for a fun finishing touch - Crop or adjust the aspect ratio to frame it perfectly - Choose the quality when saving — balance file size and clarity DIY Meme Maker – Anyone Can Create Can’t draw? No problem. Use a blank meme template or pick a photo from your album: - Start with a template or your own image - Add text, move it anywhere - Save it to your album or copy it with one tap — ready to use in any chat Single Memes – Tap and Use Browse individual memes by category right below the creator. Just tap to: - Save to your photo library - Copy to clipboard and paste anywhere — Your memes, your way. -Payment will be charged to iTunes Account at confirmation of purchase. -Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. -Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Privacy Policy: https://orizs.com/emoji/privacy.html Terms of User: https://orizs.com/emoji/terms.html
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
react-navigation
expo-camera
@supabase/supabase-js
BUILD KIT DIFFICULTY
Advanced
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.
