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
BLAST Reader
BLAST Reader
$1.99
PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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 included15 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 BLAST Reader: map the core Books 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
Competitive pricing with generous free tier
Assumption to check: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Focus on most-requested features first
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Optimize for 60fps, fast load times
Assumption to check: Poor performance
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
BLAST Reader A safe, joyful bedtime story app where imagination comes first – and learning happens naturally. BLAST Reader turns bedtime into a world of adventure, creativity, and connection. With vibrant illustrations, engaging storytelling, and a child-friendly design, families can relax and explore stories together – or kids can dive in on their own. Some stories are pure imagination – whimsical worlds, playful characters, and magical adventures. Others gently introduce biomedical science concepts, from the human body and immune system to the fascinating roles of different doctors. Every story is crafted to entertain first, with learning woven in when it fits the journey. BLAST Reader is the perfect companion to BLAST Studio, our bedtime story creation platform for parents. Features kids and parents love: Stories for Every Mood – From fun, imaginative adventures to stories inspired by science, medicine, and the human body. Optional Learning Moments – Stories include an interactive question-and-answer section to support reading comprehension and reinforce key ideas. Read Together or Solo – Enjoy stories side-by-side or let kids explore independently. Kid-Safe Design – 100% ad-free, distraction-free, and age-appropriate. Growing Story Library – A diverse collection of bedtime stories spanning fantasy, everyday adventures, and science-inspired tales. Easy Navigation – Simple, intuitive interface designed for young readers. English & Spanish Stories – Bilingual reading for families everywhere. Why families choose BLAST Reader: Encourages a love of reading through fun, engaging storytelling. Balances imagination with meaningful learning experiences. Supports calm, enjoyable bedtime routines. Provides a safe environment parents can trust – with added control through BLAST Studio. Download BLAST Reader today – and make bedtime something to look forward to!
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
RevenueCat
BUILD KIT DIFFICULTY
Starter
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.
