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
Little Nightmares
Escape your childhood fears.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.4
1,992 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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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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 included20 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 Little Nightmares: map the core Games 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 intuitive touch controls and clear navigation cues.
Assumption to check: Difficulty in navigation and controls
Validate with people who use this workflow before building.
Hypothesis 2
Add daily challenges and level randomization to enhance replay value.
Assumption to check: Limited replayability
Validate with people who use this workflow before building.
Hypothesis 3
Create balanced level progression with difficulty scaling.
Assumption to check: Inconsistent difficulty spikes
Validate with people who use this workflow before building.
Hypothesis 4
Offer ad-free premium options and rewards for watching ads.
Assumption to check: Ad fatigue among users
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
Escape your childhood fears. First available on PC and consoles, the horror adventure tale Little Nightmares is available on mobile! Immerse yourself in Little Nightmares, a dark whimsical tale that will confront you with your childhood fears! Help Six escape The Maw – a vast, mysterious vessel inhabited by corrupted souls looking for their next meal. As you progress on your journey, explore the most disturbing dollhouse offering a prison to escape from and a playground full of secrets to discover. Reconnect with your inner child to unleash your imagination and find the way out! Little Nightmares features a subtle mix of action and puzzle-platformer mechanics rooted in an eerie artistic direction and creepy sound design. Sneak your way out of the Maw’s dreary maze and run from its corrupted inhabitants to escape your childhood fears. FEATURES - Tiptoe your way through a dark and thrilling adventure - Rediscover your childhood fears inside a haunting vessel and escape its eerie inhabitants - Climb, crawl and hide through nightmarish environments to solve tricky platform puzzles - Immerse yourself in the Maw through its creepy sound design CAREFULLY REDESIGNED FOR MOBILE - Revamped interface - Game Center achievements - Compatible with MFi controllers If you run into a problem, please contact us at https://playdigious.helpshift.com/hc/en/12-playdigious/ with as much information as possible on the issue.
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
Supabase
@react-navigation/native
react-native-reanimated
@supabase/supabase-js
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.
