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
Grid Money
Keep more of your paycheck and get cash when you need it with Grid
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.6
30,313 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.
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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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Grid Money: map the core Finance 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
Keep more of your paycheck and get cash when you need it with Grid. No interest, credit checks, or late fees. Just a simple $10/month for Grid+. CASH ADVANCES Get an advance when you need extra cash between paychecks. Up to $200* per advance with our Levels program. No credit checks needed and always transparent pricing. STOP OVERPAYING YOUR TAXES Keep fixes your withholdings so you're paying the right amount of tax every payday. More in every paycheck instead of one big refund next April. No interest, no repayment — it's your own money. NO CREDIT CHECKS Sign up is fast and easy through the app. Need help? We're always here to help. Reach out to us at [email protected] *You must meet eligibility requirements to obtain an Advance. Your initial Advance limit will be less than $200 and may increase gradually over time. Advance limits are based on your account activity and balance(s), your direct deposits, your history of timely Advance repayments, your income and tax refund projections, and other risk-based factors. Your eligibility and Advance limit are evaluated regularly and may change at any time. You may only take one Advance at a time. Grid does not offer loans or credit products. There is no APR, no finance charge, and no loan obligation.
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
Implement a user-friendly category management system to allow users to easily add or edit categories.
Assumption to check: Users find it difficult to customize categories for transactions.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance bank linking experience with clearer instructions and improved error handling.
Assumption to check: Some users report difficulties in linking bank accounts.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce analytics features like spending trends over time and detailed reports.
Assumption to check: Users want more insights into their spending habits.
Validate with people who use this workflow before building.
Hypothesis 4
Add a feature for bill reminders and due date alerts to help users manage their payments.
Assumption to check: The app lacks reminders for upcoming bills.
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
Expo
Supabase
react-navigation
react-native-chart-kit
Zustand
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.
