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.
Featured by Apple on „Apps that we love”, from FStooper he got "seal of approval", selected by NoFilmSchool.com as "Coolest Filmmaking Gadget of 2016".
$3.99 · In-app purchases
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.
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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 Golden Hour One: map the core Weather 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: Limited location support can frustrate users.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Occasional inaccuracies in sunrise/sunset times.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of advanced weather data (e.g., temperature, conditions).
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No offline support.
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.
Featured by Apple on „Apps that we love”, from FStooper he got "seal of approval", selected by NoFilmSchool.com as "Coolest Filmmaking Gadget of 2016". GoldenHour.One helps you to find the best time, place and weather for your outdoor pictures. GoldenHour.one knows in advance your chance for a good photo. It can predict the light, sky and moon indexes from local weather forecast anywhere in the world. = Exceptional Features = • Sky Index - shows you a chance for dramatic sky, • Light Index - shows a chance for portraits landscape and architecture photos. • Moon Index - shows a chance for moon photo. • One quick glance and you know, if you go to take a photo or not. Select any place on the map and app will show you the sun position during the golden hour. If the sun is not where you have imagined, you can either move the pin to a new position or use the slider to pick another date when the sun is in the desired position. GHO won’t let you miss any opportunity. Pick any event you would like to be reminded of and app will remind you in advance. = Features = • Clean and easy to use interface • Golden and blue hour • Moon hour - best time for moon photo • Sky Index - predicting the chance for a dramatic photo of sunrise or sunset. • Light Index - predicting conditions for portraits panoramas and architecture. • Moon Index - predicting conditions for moon photo. • 5-day photography specific weather forecast. • Unique weather descriptions from a photographer's perspective - knows what to expect when taking a photo. • Visual search on the map: move the pin as you need it. • Find the best place for your photo on the map. • Check the line of sight of the sun and moon for any date and time. • Map compass mode. • List of favorite locations and events for future use. • Time/direction of the sun and moon rise/set. • View azimuth and altitude of the sun/moon for any time of day/night • Moon phase, age and illumination. • Civil, nautical and astronomical twilight. • Celestial events including moon phases, lunar eclipse and solar eclipse • Network connection not required for rise/set time, azimuths and sun/moon position • Elevation above sea level. • Distance, bearings and elevation angle between any two points They wrote about us: Fstoppers.com, KodakIT, LifeHacker.com, DigitalTrends.com, DigiFotoPro.nl, Snapmunk.com, techjo.jp … ".... GoldenHour.One gets the Fstoppers seal of approval." - Fstoppers.com "Finding perfect light has never been easier - we are loving this golden hour app for photographers" - KodakIt.com "Coolest Filmmaking Gadget" - NoFilmSchool.com "The app serves as a great tool to plan shots with the perfect light conditions" - iThinkDifferent.com Information about subscriptions: Why do we use Apple Weather? • It's one of the most accurate sources of weather information. • Updates the weather data every hour (instead of 3 or 6) • It's hyperlocal (the indexes are exactly for the selected location, not for the large area) • Subscriptions for 1, 3, 6, and 12 months. --- If you choose to purchase a subscription, payment will be charged to your iTunes account, and your account will be charged within 24-hours prior to the end of the free trial or current period. Subscription with a free trial period will automatically renew to a paid subscription. Any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period. You can cancel the automatic renewal of your subscription at any time by going to your settings in the iTunes store after purchase. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the free service. Terms of Use: https://blackbird.one/GHO/GHO_TOS.html Privacy Policy: https://www.iubenda.com/privacy-policy/59630854
Written user reviews are not shown here. Check current App Store reviews >
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.
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.