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
ShutterCount Mobile
*** The original, most feature-rich and only iOS shutter count reader that works with all new Canons ***
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.3
66 ratings · Below Average
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/
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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for ShutterCount Mobile: 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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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
Provide robust cloud storage for user data.
Assumption to check: Limited cloud backup options
Validate with people who use this workflow before building.
Hypothesis 2
Include onboarding tutorials and FAQs.
Assumption to check: Lack of user-friendly tutorials
Validate with people who use this workflow before building.
Hypothesis 3
Simplify UI for better navigation and usability.
Assumption to check: Cluttered interface
Validate with people who use this workflow before building.
Hypothesis 4
Enhance performance optimizations for older models.
Assumption to check: Occasional crashes on older devices
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
*** The original, most feature-rich and only iOS shutter count reader that works with all new Canons *** ShutterCount displays the number of shutter actuations (the shutter count) of your Canon EOS, Nikon or Pentax digital camera - see the complete list of certified models below. The shutter count is read directly from USB or Wi-Fi connected Canons, and from image files for Nikon and Pentax cameras. With ShutterCount you can easily check whether a newly purchased camera is really new, or how heavily used a pre-owned item is. And you can save a trip to a service center by doing the reading for yourself. BASE FEATURES • Unlimited readings • Counter for still photos • Wear indicator with numeric and graphical rated shutter life percentage display • History logging to track camera usage; logs are stored in CSV format that can be imported into Numbers or Excel for further processing • Reports in plain text format • Wizard to guide you through the reading process LIVE VIEW PACK (optional in-app purchase supporting select Canon models) • Counters for live view/videos and electronic shutter • Distribution chart PLUS PACK (optional in-app purchase) • Graphing • Shutter life forecasting (not available for some Nikon and Pentax models) • History deduplication • Canon EOS camera management (date/time sync, owner name editing, copyright information setting, outdated firmware warning, IPTC export/import) • Raw copyright information display and secure personal data wiping for Canons CERTIFIED CAMERAS USB connection (requires a Lightning to USB Camera Adapter or a USB-C equipped iPad; Wi-Fi on the camera must be disabled): • Canon 1D4/1DC/1DX/1DX2/1DX3/5D2/5D3/5D4/5DS/5DSR/6D/6D2/7D/7D2/40D/50D/60D/60Da/70D/77D/80D/90D/100D/200D/200D2/250D/450D/500D/550D/600D/650D/700D/750D/760D/800D/850D/1000D/1100D/1200D/1300D/1500D/2000D/3000D/4000D/8000D/9000D/C50/M6II/M50/M50II/R/R1/R3/R5/R5C/R5II/R6/R6II/R6III/R7/R8/R10/R50/R100/Ra/RP; Kiss F/M/M2/X2/X3/X4/X5/X6i/X7/X7i/X8i/X9/X9i/X10/X10i/X50/X70/X80/X90; Rebel SL1/SL2/SL3/T1i/T2i/T3/T3i/T4i/T5/T5i/T6/T6i/T6s/T7/T7i/T8i/T100/XS/XSi Wi-Fi/Ethernet connection is supported using built-in networking or Canon transmitters on the above cameras having the "EOS Utility" function. The camera must be paired directly with ShutterCount using this function. Image files: • Nikon D2H/D2X/D2Xs/D3/D3S/D3X/D4/D4S/D5/D6/D40/D40X/D50/D60/D70/D70s/D80/D90/D200/D300/D300S/D500/D600/D610/D700/D750/D780/D800/D800E/D810/D850/D3000/D3100/D3200/D3300/D3400/D3500/D5000/D5100/D5200/D5300/D5500/D5600/D7000/D7100/D7200/D7500/Df/Z5/Z5II/Z6/Z6II/Z6III/Z7/Z7II/Z8/Z9/Z30/Z50/Z50II/Zf/Zfc/ZR; 1 AW1/J1/J3/J4/J5/V1/V2/V3; Coolpix A • Pentax *istDL/*istDL2/645D/645Z/K1/K1II/K3/K3II/K3III/K3IIIMono/K5/K5II/K5IIs/K7/K10D/K20D/K30/K50/K70/K100D/K100D Super/K200D/K500/K2000/Km/KP/Kr/KS1/KS2/Kx Cameras not listed here are not supported. FOR DETAILED COMPATIBILITY INFORMATION PLEASE VISIT: https://www.direstudio.com/shuttercount/tech-specs Questions? Problems? Check out the Getting Started Guide (https://www.direstudio.com/shuttercount/getting-started), the FAQ (https://www.direstudio.com/shuttercount/faq), or contact our support by tapping Report a Problem on the More tab! DISCLAIMER: The app displays the camera's internal counter. DIRE Studio is not responsible for how well and accurately the camera maintains that counter. The forecast is calculated based on your previous usage, and will change if you use the camera differently in the future.
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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.
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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.
