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
Trails Offroad: Offline Maps
Explore with Confidence
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
1,146 ratings · Top 15%
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 included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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 Trails Offroad: Offline Maps: map the core Navigation 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
Explore with Confidence. Go Beyond the Pavement. Trails Offroad is the #1 app for discovering, planning, and navigating off-road adventures—whether you're behind the wheel of a Jeep, Bronco, Toyota, 4x4, ATV, or overlanding rig. With thousands of expert-curated trail guides, offline GPS tools, and powerful planning features, Trails Offroad helps you explore public lands and rugged backroads like never before. ▶ Why Off-Roaders Choose Trails Offroad: • Curated Trail Guides: Get access to thousands of detailed offroad trail guides with ratings, route difficulty, points of interest, and camping insights—all crafted by experienced scouts. • Works Offline: Download trail maps and guides for remote areas where cell service disappears. Stay on course with GPS tracking even when you're completely offline. • Track & Waypoint Tools: Record your adventures in real time with powerful GPS track logging. Drop waypoints for campsites, obstacles, trail forks, and more. • Public Land Overlays: Navigate confidently with public land boundaries and roads clearly marked—ideal for dispersed camping and exploring responsibly. • Group Trip Planning: Share lists of trails, add comments, and collaborate with friends and family to organize your next trip with ease. ▶ Built for Offroaders, by Offroaders. From weekend trail runs to full-blown overland expeditions, Trails Offroad is built by passionate adventurers who understand the road less traveled. Our platform continues to evolve based on real-world feedback from our thriving off-road community. ▶ Membership Options: Free Plan: • 200 curated trail guides • Basic GPS tools and planning features All-Access Membership – Just $39.99/year: • Full access to 3,000+ trail guides • 2,000+ bonus “Scout Routes” • Advanced GPS tools & offline maps • Access to premium content and trail details • Annual auto-renew with easy cancellation ▶ Find. Plan. Track. Share. From Moab to the Mojave, explore the wild with Trails Offroad. Whether you’re a seasoned off-roader or new to the dirt, our trail guides and navigation tools give you everything you need to go further. ▶ Download Trails Offroad now and hit the trail with confidence. ▶ Privacy Policy: https://www.trailsoffroad.com/privacy-policy/ ▶ End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
Offer enhanced offline map features with download options for specific regions.
Assumption to check: Limited offline map capabilities
Validate with people who use this workflow before building.
Hypothesis 2
Implement user-generated content for trail updates and reviews.
Assumption to check: Inconsistent data on trails
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to share trails and experiences on social media.
Assumption to check: Lack of social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Provide clear explanations of subscription benefits and a straightforward pricing model.
Assumption to check: Subscription model may confuse users
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
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BUILD KIT DIFFICULTY
Advanced
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.
