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
ism: Retro Camera & Vintage
Nail that film look
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
11,958 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.
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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 ism: Retro Camera & Vintage: map the core Photo & Video workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Nail that film look. Get the Y2K aesthetic. Your photos, but with a vibe. ism is your secret weapon for stunning, retro-inspired photos and videos. Get instant access to pro-level filters and effects in just one tap. No complicated tools, no editing experience needed. Just choose a style and watch the magic happen. Capture your moment, find your aesthetic, and share it with the world. Why you'll be obsessed with ism: • 500+ AESTHETIC PRESETS: Explore a massive library of looks, from dreamy film grain to edgy Y2K styles and nostalgic analog textures. • IN-APP DIGICAM: Capture that perfect lo-fi, early 2000s digital camera look right from the app. • ONE-TAP AI EDITS: Let our AI instantly apply the perfect filter to match your photo's mood. • STUNNING COLLAGE MAKER: Create share-worthy photo collages for your Instagram Stories and feed. • BATCH EDITING: Edit your entire photo dump in seconds. Apply your favorite filter to a whole album at once. • UNLIMITED ACCESS: Unlock every filter, effect, and future drop with ism PRO. Your creativity has no limits. • FRESH DROPS WEEKLY: Discover new filters and styles added all the time to keep your content on-trend. • EFFORTLESS INTERFACE: A clean, intuitive design that makes editing fast, fun, and easy. Join thousands of creators who trust ism to define their unique visual style. Download ism now and start creating your dream feed. Terms & Conditions: https://www.ism-app.com/tos Privacy Policy: https://www.ism-app.com/privacy-policy
Written user reviews are not shown here. Check current App Store reviews >
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
Expand the library of filters and effects.
Assumption to check: Limited filter options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the paywall experience and clarify benefits.
Assumption to check: In-app purchase model can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Optimize camera performance and app responsiveness.
Assumption to check: Performance issues on older devices
Validate with people who use this workflow before building.
Hypothesis 4
Integrate social sharing options for edited photos.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
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
expo-camera
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expo-image-manipulator
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.
