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
City Saver Mobile Plus
City Saver - Unlock Over $10,000 in Local Savings!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.7
3 ratings · Top 50%
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 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.
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 City Saver Mobile Plus: map the core Food & Drink 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
Expand partnerships with more local eateries.
Assumption to check: Limited restaurant options
Validate with people who use this workflow before building.
Hypothesis 2
Optimize data fetching and UI rendering.
Assumption to check: Slow loading times
Validate with people who use this workflow before building.
Hypothesis 3
Introduce social sharing and user reviews.
Assumption to check: Lack of user engagement features
Validate with people who use this workflow before building.
Hypothesis 4
Simplify user flow and improve onboarding.
Assumption to check: Confusing navigation
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
City Saver - Unlock Over $10,000 in Local Savings! Subscription Policy All subscriptions will auto renew follow existing Apple end user license agreements found here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Discover incredible savings at over 550 local restaurants and activities with City Saver! Join thousands of users who are saving big while exploring new businesses in their cities. Download now and start enjoying exclusive discounts today! What's New in City Saver: We’ve listened to your feedback and made several exciting improvements to enhance your City Saver experience! Here’s what’s new: • New Businesses Added Regularly: Gain access to all current 250+ local businesses and any new ones added in the future. Your savings potential keeps growing! Have a business you'd love to see on the app? Let us know! • Never Forget Your Coupons: Your coupons are now digital and travel with you everywhere. No need to carry physical coupons or books and never forget or lose your coupons again! • Savings Map: Our mobile savings map shows you partnered businesses near your location, so you never miss out on a chance to save. Explore a new restaurant or experience today! • Savings Calculator: Track your savings with City Saver and see how much you’ve saved over time. • Reusable Coupons (Mobile+ Only): Enjoy periodic refreshes on your favorite discounts, giving you multiple uses for your favorite deals Key Benefits of City Saver: • Seamless Experience: Access and redeem coupons effortlessly on the go. • Local Exploration: Discover new local businesses and support your community while saving money. • Family Sharing: Share your account with family members for collective savings. • Community Support: By using City Saver, you help support and sustain local businesses, contributing to the growth of your community. Flexible Subscription Options: • Yearly Subscription: Love City Saver? The same great yearly subscription option is available, and now there’s no need to buy a code online through the website. Maximize your savings and subscribe and manage your subscription right from your City Saver app. • Month-to-Month Subscription: New to City Saver? Try us out on a month-to-month basis, cancel anytime! City Saver is available in these markets: • Nashville, TN • Clarksville, TN • Memphis, TN • Cincinnati, OH • Decatur, AL Download City Saver Today for Free! Start saving and exploring your city like never before. Join the City Saver community and unlock over $10,000 in savings at your favorite local spots!
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
Supabase
Zustand
React Navigation
Axios
BUILD KIT DIFFICULTY
Intermediate
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.
