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
Offline Survival Kit
Offline Survival Kit is the ultimate wilderness and emergency reference guide fully offline, no internet required.
$3.99
PRICE
$3.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.3
3 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.
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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/
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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 Offline Survival Kit: map the core Lifestyle 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
Enhance offline capabilities by including downloadable content.
Assumption to check: Limited offline functionality compared to online resources.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate a community forum for sharing survival tips.
Assumption to check: Lack of user-generated content or community features.
Validate with people who use this workflow before building.
Hypothesis 3
Add features for integrating with GPS or weather apps.
Assumption to check: No integration with external tools or apps for tracking survival activities.
Validate with people who use this workflow before building.
Hypothesis 4
Implement a content update feature to keep information current.
Assumption to check: Static content that may not be updated frequently.
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
Offline Survival Kit is the ultimate wilderness and emergency reference guide fully offline, no internet required. Whether you're hiking, camping, or preparing for emergencies, this app gives you the knowledge you need when it matters most. WHAT'S INSIDE: Plants - Identify edible, medicinal and toxic plants with detailed descriptions, habitats and warnings Animals - Know which animals are dangerous and how to react in an encounter Skills - Step-by-step survival skills: shelter, fire, water, navigation, food and more Disasters - Preparation and survival guides for floods, storms, earthquakes, wildfires and more First Aid - Critical first aid scenarios including CPR, bleeding, poisoning, hypothermia and more Bookmarks - Save your most important guides for instant access Search - Find anything instantly across all categories 100% OFFLINE All content is stored on your device. No Wi-Fi, no cellular data needed — works anywhere in the world. MULTILINGUAL Available in English, Dutch, German, French and Spanish. Perfect for hikers, campers, preppers, scouts, outdoor enthusiasts and anyone who wants to be prepared.
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
React Native
Expo
React Navigation
Axios
Zustand
React Native Gesture Handler
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.
