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
SubMOA Pro
SubMOA Pro is a mobile app designed for shooting sports enthusiasts, especially precision rifle shooters
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.5
12 ratings · Below Average
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 included19 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 SubMOA Pro: 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
Focus on stability and robust testing before launch.
Assumption to check: Poor user ratings due to bugs and crashes
Validate with people who use this workflow before building.
Hypothesis 2
Add unique features like social sharing or activity challenges.
Assumption to check: Limited features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 3
Design a clearer and more intuitive navigation layout.
Assumption to check: Difficult navigation and user interface
Validate with people who use this workflow before building.
Hypothesis 4
Offer more value in the free tier and a clear comparison of features.
Assumption to check: High subscription cost for perceived value
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
SubMOA Pro is a mobile app designed for shooting sports enthusiasts, especially precision rifle shooters. This version has all the features of free version plus cloud support through www.reloaderscloud.com. It allows users download their reloading data and firearm information to the device and link the shooting results to the reloading data. The target images and group analysis results were uploaded to server and free up spaces in the device. Features: 1. Use phone's back camera capture properly scaled target pictures 2. Allow pick target picture from device library 3. Allow manually set actual size on target picture 4. Allow re-analysis target 5. Calculate group size, point of impact by analyzing target picture 6. Generate analyzed target pictures for record keeping and easy sharing 7. Record equipment setup along with the target pictures 8. Record shooting conditions such as temperature, wind condition 9. Manage the records of shooting results 10. Share the target picture from Camera Roll 11. Allow analyze and record multiple groups on the same target 12. Allow user change font size of labels to create great target analysis image 13. Support metric system 14. Allow user select MOA or mil as accuracy unit. 15. Calculate group mean radius For pro version only: 16. Download reloading data from cloud 17. Download firearm data from cloud 18. Allow quickly switch firearm and ammo for shooting session 19. Upload target image and analysis results to free cloud account.
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.
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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.
