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
Citi Mobile®
Simpler
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
4,088,856 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.
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 Citi Mobile®: map the core Finance 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
Simplify navigation with clearer labels and fewer nested options.
Assumption to check: Complicated navigation structure can confuse users.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize data fetching with caching and loading indicators.
Assumption to check: Occasional slow loading times for transaction data.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce advanced budgeting tools and analytics.
Assumption to check: Limited budgeting features compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance visual hierarchy and whitespace for a cleaner layout.
Assumption to check: User interface can feel cluttered.
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
Simpler All Mobile Account*: Open a checking or savings account right from the app without setting foot in a bank branch Card Replacement: Request a new card if your original is lost, stolen or damaged Citi Mobile® Snapshot: Quickly review key account info – without having to sign in every time Zelle®: A fast, fee-free way within the Citi Mobile App to pay and easily split payments with people you trust.** Mobile Check Deposit: Quickly and easily deposit checks from anywhere ATM Finder: Easily locate one of more than 60,000 fee-free ATMs in the U.S. Account Information: View your statements, check balances and recent activity Make same-day or scheduled payments easily Smarter Aggregation*: Link virtually all your bank accounts, credit cards and investment accounts for a more holistic financial view to managing your finances Spending insights*: Track your spending habits and trends across your accounts Bill management*: View and manage your bills and recurring payments in one place FICO® Score : Citi credit card customers can view their FICO® Score for free Make payments, including automatic payments, and transfers. Dispute credit card transactions if ever needed and track the status Stay informed with Account Alerts: Choose the alerts you want and even when you want them Change your credit card due date: Choose the beginning, middle, or end of a month Secure Citi® Quick Lock: Lock or unlock your lost or misplaced card PIN Reset: Reset your debit card PIN from your mobile device Enable Touch ID® or Face ID® for a fast and safe way to access your account * Features are available today on a limited basis. **Zelle and the Zelle related marks are wholly owned by Early Warning Services, LLC and are used herein under license. Your trust and confidence in how we collect, use, and share information about you is a priority. Review our privacy notice at https://online.citi.com/JRS/portal/template.do?ID=Privacy and our notice at collection at https://online.citi.com/JRS/portal/template.do?ID=Privacy#notice-at-collection to learn more about privacy at Citi. Additionally, California residents may submit requests in connection with the California Consumer Privacy Act at https://online.citi.com/dataprivacyhub.
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
Zustand
@react-navigation/native
axios
@react-navigation/stack
BUILD KIT DIFFICULTY
Expert
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.
