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
iOverlander
iOverlander is a mapping app to help travelers find camping and accommodation worldwide - no matter how remote your destination.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
7,679 ratings · Top 30%
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
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A product spec, screen plans, and build steps for your coding agent.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 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 iOverlander: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
iOverlander is a mapping app to help travelers find camping and accommodation worldwide - no matter how remote your destination. Only real places by real travelers. Unbiased and never sponsored. There is no list or robot that can ever replace what a traveler says standing right there in that spot. Typos and all, we believe the best data comes from overlanders onsite. No signal? No problem. The best places on this planet don’t have cell signal. All our data is stored on your phone, so you can plan your day without wifi. Download offline maps of entire states and countries, that give you all the tiny alleys, building footprints, and small landmarks to make travel easier. Campsites are just the beginning. Mechanics, restaurants, hotels, propane, water, wifi, shopping, laundry, showers, doctors, tourist attractions, border crossings, warnings, checkpoints, insurance, storage, shipping, consulates, banks, and more. Moderated by overlanders, not AI. Our moderators have spent a collective century on the road and 30,000 hours moderating entries. They’re not planning to stop anytime soon. But wait, there's more! In addition to finding places, you can add new ones, leave reviews, save favorites, and share places with other travelers. Subscribe to iOverlander Pro or Unlimited to download offline maps, access satellite maps, BLM and USFS overlays, save filters, search and more! Wherever you're headed, we've got your next destination. ____ Terms of Service: https://ioverlander.com/terms Privacy Policy: https://ioverlander.com/privacy_policy
Written user reviews are not shown here. Check current App Store reviews >
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 offline caching for maps and listings
Assumption to check: Limited offline functionality for users in remote areas
Validate with people who use this workflow before building.
Hypothesis 2
Introduce a community reporting and review system
Assumption to check: User-generated content moderation issues
Validate with people who use this workflow before building.
Hypothesis 3
Add algorithm-based suggestions for users based on preferences
Assumption to check: Lack of personalized recommendations
Validate with people who use this workflow before building.
Hypothesis 4
Enhance in-app messaging with notifications and search capabilities
Assumption to check: Difficulties in messaging system
Validate with people who use this workflow before building.
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
react-navigation
react-native-maps
@react-native-community/geolocation
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.
