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
iSolunar™ Hunt & Fish Times
iSolunar™ Hunting & Fishing Times is the #1 solunar tables app and determines the best hunting times and best fishing times for any date, any location – worldwide!
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
3,480 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.
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 included17 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 iSolunar™ Hunt & Fish Times: map the core Sports 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
Offer more free content to attract users
Assumption to check: Limited free features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement real-time data updates to enhance user trust
Assumption to check: Inconsistent data updates
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation structure and add onboarding tutorials
Assumption to check: Confusing navigation for new users
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize alerts and notifications for fishing/hunting times
Assumption to check: Lack of customization options
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
iSolunar™ Hunting & Fishing Times is the #1 solunar tables app and determines the best hunting times and best fishing times for any date, any location – worldwide! BENEFITS: - Provides all peak feeding / activity times - Solunar Times apply to ALL wildlife and fish - Easy-to-read tables – no complicated graphics - Top Ranked Solunar App in Sports Category - No subscription fees! FEATURES: • Major & Minor Solunar Feeding / Activity Periods / Day Rating • Maps & Markers (In-App Purchase) • Range Finder (In App Purchase, included with Maps) • Premium Weather with Tides/Radar (In App Purchase) • Moon Phase / Moon Rise / Moon Set Times • Sunrise / Sunset Times • Day / Week / Month Views • Current Weather plus Hourly & 5-Day Forecast • Calendar for checking solunar data in advance • Send results via text, email • Trophy Room - share via Instagram, Facebook, or text/email Based on the original solunar theory, iSolunar™ Hunting & Fishing Times determines the peak feeding and activity times for all types of fish and wildlife based on the moon position and lunar phase. With iSolunar™ Hunting & Fishing Times, you’ll have all the solunar table information you need to know exactly when the best fishing times and best hunting times will occur for your exact location. When arranging your next trip, just check ahead to find out the best hunting or fishing times for the date you’re considering. It doesn’t matter what you’re after or where, this incredible app will help you maximize your chances success! - Created by Outdoorsmen, for Outdoorsmen - PRIVACY POLICY/DISCLAIMER: RedSnake Enterprises LLC does not knowingly or intentionally collect, aggregate, sell, distribute, or otherwise make public any personal information to any third party. Please check your iTunes end user agreement for other policies. Lunar Hunting & Fishing Calendar | Best Hunting Times | Deer Feeding Times | Best Times to Hunt & Fish | Wildlife Feeding Times | Solar Fishing Calendar | Fishing Almanac | Best Fishing Times | Fishing Forecast | Fishing Calendar
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
Redux
Firebase
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.
