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.
Make every day a little more rewarding with Upside, the ultimate cash back rewards app for gas, groceries, and dining.
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Upside: Gas & Food Cash Back: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Limited merchant partnerships can restrict cash back options.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Cash back withdrawal can take time, frustrating users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can be cluttered with too many offers.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Customer support response times can be slow.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Make every day a little more rewarding with Upside, the ultimate cash back rewards app for gas, groceries, and dining. Your regular grocery run. Your usual fill-up. Your go-to dinner spot. Upside fits right into your life, giving you real cash back on the things you already buy, without changing a thing about how you shop. How Upside works - Find offers near you - Claim an offer before you pay - Pay as usual with your credit or debit card - Earn cash back in your account Cash out whenever you want. Earn cash back on the things you already buy Upside works across the everyday purchases you're already making: Gas: Stop overpaying at the pump, check live gas prices at participating locations, and find the best deals at the gas stations. With offers at 30,000+ station gas locations nationwide, including major brands like Circle K, Caseys, Murphys, Shell, Gulf, Sunoco, Marathon, there's almost always an offer close by. Earn up to 25¢/gal on your first fill-up. We partner with local businesses and big brands so you can earn cash back on top of your existing fuel rewards and loyalty programs. Groceries: Earn cash back on your weekly grocery run at participating stores. Get an average 13% cash back in select markets, and make the most of what's already on your list. Dining: Earn cash back when you dine out or grab takeout at local restaurants and national favorites like Taco Bell, Pizza Hut, Jersey Mikes and Dominos. Download the app to see offers near you. Simple, flexible ways to earn - No coupons to clip, no codes to remember - Check in or upload a receipt, depending on the offer - Stack Upside cash back on top of your credit card rewards, fuel rewards, and loyalty programs - Works across gas, groceries, and dining, all in one app Upside fits into how you already pay and earn. A fill-up becomes a small win. A grocery run adds up. Dinner out feels a little smarter. That's the idea. Cash back that's actually yours - No points, no converting, what you see is what you get - No redemption minimum, cash out whenever you want - Cash out to your bank account or gift cards - Track every dollar right in the app Why people keep coming back to Upside Because it works without asking you to do more. You don't need to hunt for deals, clip coupons, or rethink how you spend. Upside quietly turns the purchases you were already going to make into something that earns you back a little more, fill-up after fill-up, grocery run after grocery run, dinner after dinner. Small choices that add up to something that actually feels worth it. And because there are no points to decode, no minimums to hit, and no hoops to jump through, what you earn is simply yours. A win for you — and the places you go We partner with local businesses and big brands to bring you relevant offers nearby. You earn cash back. Businesses grow. And Upside only earns when both sides win. Trusted by millions Join 5 million+ people who've already earned over $1 billion in cash back on gas, groceries, and restaurants. With a 4.5-star rating on Google Play, Upside is the kind of app that quietly becomes part of your routine — because it fits around your life, not the other way around. Frequent users earn an average of $255 in their first year, and there's probably an offer near you right now. Download Upside and start earning cash back today.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.