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
SSTV
SSTV: Magic of Pictures and Signal
$2.99 · In-app purchases
PRICE
$2.99
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 included17 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 SSTV: map the core Lifestyle 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 a more robust recommendation algorithm based on user preferences.
Assumption to check: Limited content discovery features
Validate with people who use this workflow before building.
Hypothesis 2
Streamline the upload process with better UI/UX.
Assumption to check: Video upload process can be cumbersome
Validate with people who use this workflow before building.
Hypothesis 3
Add user profiles and ability to follow/unfollow users.
Assumption to check: Lack of social features (e.g., following users)
Validate with people who use this workflow before building.
Hypothesis 4
Introduce reporting features and moderation capabilities.
Assumption to check: Insufficient moderation tools for user-generated content
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
SSTV: Magic of Pictures and Signal • Trasmit and receive SSTV images • Capture live from your microphone • Auto-enhance for crystal-clear results • Supported list (Trasmition and receive): M1, M2, S1, S2, SDX, SC2_60, SC2_120, SC2_180, R24, R36, R72, P3, P5, P7, BW8, BW12, PD50, PD90, PD120, PD160, PD180, PD240, PD290, MP73, MP115, MP140, MP175, MR73, MR90, MR115, MR140, MR175, ML180, ML240, ML280, ML320, FAX480, AVT24, AVT90, AVT94, MP73N, MP110N, MP140N, MC110N, MC140N, MC180N Press the microphone button and bring it close to your device to receive the SSTV signal. You'll soon see the SSTV image decoded and displayed. Select the sending mode and image, bring it close to your sending device, and the audio signal will be clearly transmitted to your friend. Unlock the secret language of the airwaves and see the color of sound. Have you ever imagined that a seemingly ordinary audio file, or a radio wave traveling through the air, could conceal a picture waiting to be discovered? SSTV is your key to this fascinating world. Designed for explorers, amateur radio enthusiasts, and the endlessly curious, it transforms invisible signals into visual memories you can treasure. Wherever your signal hides, we can reveal it. • Decode Secrets from Your Archives: Directly process audio files from your device—including MP3, AAC, M4A, WAV, and more—to unveil hidden images from past recordings. • Capture Live Transmissions: Instantly monitor and decode live audio from your microphone in real-time, turning the ephemeral into the everlasting. • Transmit and Receive with Ease: Whether you're tuning into vintage SSTV broadcasts or modern transmissions, our app supports a wide range of popular modes, ensuring you never miss a moment. Engineered for clarity and precision. We ensure that every image you recover is as clear and detailed as possible. Our advanced decoding engine is finely tuned for the most popular SSTV modes you'll encounter. • Comprehensive Mode Support: Faithfully decodes a wide array of classic and modern modes, including M1, Robot, PD120, PD180, and many more, in both stunning color and crisp black & white. • Intelligent Signal Processing: Experience the magic of our automatic frequency adjustment and smart image optimization. These features work silently in the background to correct distortions and enhance clarity, giving you the best possible decode quality from even weak or noisy signals. Whether you're a seasoned ham radio operator verifying a contact, a curious listener exploring old recordings, or a newcomer eager to see what you can hear, this app puts the power of visual radio in your pocket. Download SSTV now and start your adventure. Tune in, decode, and see the unseen.
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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
Supabase
react-navigation
react-native-video
zustand
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.
