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.
FieldGlass is a professional viewfinder and location-scouting tool built for film photographers and filmmakers.
$29.99
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
Your first Build Kit is free with a verified email.
Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for FieldGlass: 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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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
Assumption to check: Watermarks on free tier
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Crashes on large files
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited filters
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
FieldGlass is a professional viewfinder and location-scouting tool built for film photographers and filmmakers. Open the camera, choose a format and lens, and see the real field of view of that format right on your phone — frame precisely before you ever pick up the heavy body. SUPPORTED FORMATS • Large format: 4×5, 5×7, 8×10 and more • Medium format: 645, 6×6, 6×7, 6×9 and more • Cinema cameras: mainstream ARRI, RED and Sony bodies, plus Super 16, Super 35 and 65mm IMAX • Custom formats, equipment packages and quick combos • Many more bodies and lenses in the built-in gear library CORE VIEWFINDING • Live framing simulation: field of view computed precisely from film size and focal length • Switch focal lengths instantly to compare compositions • Widescreen ratios: 1.33:1, 1.85:1, 2.39:1 matte previews, with dual framelines for simultaneous framing • Depth of field: aperture, focus distance and hyperfocal at a glance • Film simulation: real-time Kodachrome, Velvia, Portra, Tri-X and more, with adjustable strength and colour isolation • False Color exposure check: monitor-grade exposure evaluation • Reference overlay: match a storyboard or scouting photo to reset the camera position precisely • Photo and video: save framing references with full shooting parameters and an exposure record; the info bar includes a heading compass • Calibration: aim at a target of known size in the live preview to measure and correct the field of view for greater accuracy GEAR LIBRARY • Built-in library: digital/film cinema cameras, still cameras, cine/large-format/photographic lenses and film formats — browse by category, search and view detailed specs • Pick a specific body and lens: choose the exact camera model and lens while framing; the frame, info bar and shot record update to match • Spec share cards: generate a branded spec card for any gear in one tap, easy to share and collect • Custom cameras and lenses: add your own bodies and lenses, and export/import your whole kit • Equipment package PDF: export a package as a PDF for printing or sharing SHOOTING PLANNER • Sun Planner: plan for your current or any location (pick on the map or search) — sunrise/sunset, golden-hour countdown, a sun/moon timeline and a light schedule • Solar share card: generate a planning card with sunrise/sunset, a compass and hourly weather in one tap, easy to share and keep • Moon data: phase, moonrise/moonset times and directions • Weather integration: hourly cloud cover and temperature (data from Apple Weather), with sunrise/sunset glow probability • Shot Map: located photos and videos shown on a map by where they were taken, to revisit any position PRIVACY FIRST • Core viewfinding runs entirely offline • Weather and place-name lookup use only Apple's own services, never any third party • No user data collected, no ads, no analytics, no third-party SDKs • Your photos and videos stay only on your device Whether you're a landscape photographer scouting a spot or a director previewing a shot, FieldGlass helps you see the final image before you press the shutter.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
Not assessed in a Build Kit yet.
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.