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
Stardew Save Editor Pro
YOUR FARM
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
30 ratings · Top 5%
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 Stardew Save Editor Pro: map the core Utilities 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
Implement more editing features for in-depth customization.
Assumption to check: Limited functionality for advanced users
Validate with people who use this workflow before building.
Hypothesis 2
Add a file picker to simplify path selection.
Assumption to check: Requires manual path entry
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate iCloud sync for save file backups.
Assumption to check: No cloud save options
Validate with people who use this workflow before building.
Hypothesis 4
Expand compatibility with older versions of Stardew Valley saves.
Assumption to check: No support for older save formats
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
YOUR FARM. YOUR RULES. The ultimate Stardew Valley save editor, fully updated for v1.6. EDIT EVERYTHING ON THE MAP See it. Tap it. Change it. * DESIGN THE IMPOSSIBLE: Place buildings anywhere you want. Build on water, inside the Town, or even put a Greenhouse inside a Greenhouse. No red tiles. * SKIP THE GRIND: Instantly finish all Casks in your cellar (Iridium quality!), water every crop at once, or clear all debris with a single tap. * VILLAGER TRACKER: Easily find exactly where NPCs are located right now and look inside chests without opening them. * TELEPORT ANYWHERE: Warp instantly to the Skull Cavern depths, Ginger Island, or the Summit. LIGHT, FAST & NO PC NEEDED * DIRECT MOBILE EDIT: Works directly on your phone. No PC or Wi-Fi required to edit your Stardew Valley saves. * WORKS ON ANY DEVICE: Optimized to run smoothly and quickly, even on older phones. * 100% SAFE: Your original save is auto-backed up. Made a mistake? Just tap Restore. UNLOCK YOUR POTENTIAL * CRAFT END-GAME GEAR: Add powerful enchantments to your Galaxy Sword. Create the ultimate gear with custom stats that suit your playstyle. * INSTANT MASTERY (v1.6): Unlock the new Mastery system, get all Power Books, and max out every Skill & Profession instantly. * UNLIMITED RESOURCES: Set Gold, Qi Gems, and Golden Walnuts to your heart's content. Focus on creativity, not grinding. COMPLETE EVERYTHING (TRACKER & PLANNER) * DREAM INVENTORY: Add any of 2,400+ items—get Auto-Petters, Magic Rock Candy, or Prismatic Shards instantly. * INSTANT BUNDLES: Complete the Community Center, finish the JojaMart form, or unlock hidden bundles with a single tap. * PERFECTION TRACKER: Finish the Museum and catch every fish with one tap. Reaching 100% Perfection has never been easier. * HAPPY ANIMALS: Max out friendship and mood for all pets and livestock. Grow baby animals instantly. Compatible with all latest Stardew Valley mobile save files (v1.6). Stardew Save Editor Pro is an UNOFFICIAL FAN-MADE TOOL. This app is not affiliated with, endorsed, or approved by ConcernedApe LLC. All Stardew Valley assets and trademarks are property of ConcernedApe.
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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
Zustand
react-navigation
expo-file-system
react-native-share
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.
