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
Exxon Mobil Rewards+
Go on
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
209,952 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 Exxon Mobil Rewards+: map the core Navigation 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
Implement real-time price updates and user feedback for accuracy.
Assumption to check: Users often find gas station prices outdated or inaccurate.
Validate with people who use this workflow before building.
Hypothesis 2
Expand rewards and offer personalized suggestions based on user behavior.
Assumption to check: Limited rewards options lead to user dissatisfaction.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance route previews and provide clearer turn-by-turn instructions.
Assumption to check: Navigation to gas stations can be unclear or convoluted.
Validate with people who use this workflow before building.
Hypothesis 4
Simplify account management and improve user interface for profile editing.
Assumption to check: User accounts can be difficult to manage.
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
Go on. Fuel Up. Earn More. Pay Less. The Exxon Mobil Rewards+ app is your secure, contactless way to pay at the pump or in-store—while earning valuable rewards points every time you fill up or shop at participating Exxon™ and Mobil™ stations. Why Choose Exxon Mobil Rewards+™? • Get up to $5 in points after your first purchase using the App • Earn points on fuel, snacks, drinks, and car washes¹ • Save 10¢ per gallon every day with Exxon Mobil Direct Debit+ How It Works • Download the app • Create an account • Add your preferred payment method • Start earning rewards on every eligible purchase Key Features • Pay Securely: Use Apple Pay², credit/debit cards, or Exxon Mobil Direct Debit+ & Smart Card+ • Pay at the Pump: Select your pump and fuel grade • Pay in Store: Generate a QR code and show it to the cashier • Find Stations: Locate nearby Exxon™ and Mobil™ stations • Refer Friends: Earn bonus points for every successful referral • Get Offers: Unlock exclusive deals on drinks, snacks, and more³ • Track Rewards: Monitor your points, purchases, and savings • Earn Badges: Collect badges and unlock bonus rewards • Earn Club Cards: Score more points on multiple in-store purchases • My Offers: View exclusive fuel and in-store offers just for you Accepted Payment Methods • Credit & debit cards • Apple Pay² • Click to Pay • Exxon Mobil Smart Card+⁴ • Exxon Mobil Direct Debit • Exxon Mobil BusinessPro™ Card • WEX Fleet Cards Save more with Exxon Mobil Smart Card+ & Direct Debit+ Enroll through the app and save 10¢ per gallon every day⁴. Disclaimers ¹ Points can be redeemed for savings on future purchases. ² Apple Pay not valid for in-store app payments; exclusions apply. ³ Offers available at participating locations. ⁴ Subject to credit approval and terms. For FAQs and full program details, visit: exxon.com/en/rewards-program
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
react-navigation
axios
redux
react-native-maps
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.
