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
Fetii Ride
Fetii: On Demand Group Rides
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
4,808 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.
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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's included16 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.
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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 Fetii Ride: 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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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
Expand ride offerings and partnerships to cover more areas.
Assumption to check: Limited ride availability in some regions
Validate with people who use this workflow before building.
Hypothesis 2
Implement clearer onboarding and step-by-step booking guidance.
Assumption to check: Booking process can be confusing for new users
Validate with people who use this workflow before building.
Hypothesis 3
Enhance real-time messaging features for better communication.
Assumption to check: In-app messaging often lacks responsiveness
Validate with people who use this workflow before building.
Hypothesis 4
Strengthen payment processing reliability and offer multiple payment options.
Assumption to check: Occasional technical glitches with payments
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
Fetii: On Demand Group Rides Move together with one tap. Fetii connects you to a network of spacious vehicles for nights out, events, business trips, and everything in between. Whether it’s 4 friends or 14, Fetii makes it easy to ride together without splitting up. With a simple QR check-in, you can pay for yourself, the whole group, or anything in between. Why Fetii 1. Ride together – One vehicle for your whole group 2. Upfront pricing – Know the cost before you book 3. Everyone can pay their share – No need to chase down friends for money 4. Fast pickup – Find a nearby vehicle and get moving 5. Flexible options – Schedule ahead or request on-demand 6. Reserve – Special event? Book a vehicle in our network hourly 7. Shuttles – Use the app to pay for shuttle rides at select stadiums and venues How It Works 1. Download the app and create your account 2. Choose your pickup location 3. Select a vehicle that fits your group 4. Book your ride or schedule it for later 5. Scan to check-in when your driver arrives 6. Play some tunes and enjoy the ride Fetii is available in Atlanta, Austin, Dallas, Nashville, Phoenix, and dozens more cities, and we’re constantly launching in new ones nationwide. Join the millions of riders who have already ridden with Fetii.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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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
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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.
