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.
What The Forecast?!! won a 2018 People's Choice Webby Award in the category of Mobile Sites & Apps - Services & Utilities!! Thank you to everyone who voted and helped make that happen!!
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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 What The Forecast?!!: 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 detailed forecasts compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Humorous content may not appeal to all users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: UI can be cluttered with too much information
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent location accuracy
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.
What The Forecast?!! won a 2018 People's Choice Webby Award in the category of Mobile Sites & Apps - Services & Utilities!! Thank you to everyone who voted and helped make that happen!! What The Forecast?!! is an accurate weather app that will explain, in real terms, how nasty it is outside. You will never again wonder if you should just go back to bed (which, of course, you should). Sometimes, it is better to just give up and try again tomorrow. WTForecast?!! features: - Over 12607 obnoxious phrases describing the current weather conditions. - Switchable profanity settings (ON, SOME, MINIMAL, OFF).** - Listen to the latest weather saying in different voices. - Accurate weather reports directly from AerisWeather. - Daily forecasts for 10 days. - Hourly forecasts for 48 hours. - Precipitation forecasts for the next hour. - Weather alerts from NOAA. - Hot, Cold, and Dew Point Thresholds that allow you to customize the weather phrases. - Moon Phase. - Air Quality, Arthritis, Migraine, Sinus, Cold/Flu, Bee , Campfire, Golf, Outdoor, Swimming, and Biking Indices. - Backgrounds and precipitation that match the time of year and current weather conditions. - Select from U.S. or metric units in the app Settings. - Descriptions of basic weather terms used in the app. - Share your weather reports on Facebook, Twitter, Snap, etc. Information about WTForecast Purchases and Subscriptions: - Payment will be charged to your iTunes account once you confirm the purchase or subscription. - The Purchase option allows you to own the app outright. Once purchased, no other purchase or subscription is necessary and the purchase never expires. This option removes all ads and adds all of the extra possible voices. - The Month and Year subscriptions allow you unlimited access to the app for the period of the subscription. These options remove all ads and add all of the extra possible voices during the period of the subscription. - The Subscription options automatically renew unless auto-renew is turned off or the subscription is cancelled at least 24-hours before the end of the current subscription period. - Your account will be charged for renewal within 24-hours prior to the end of the current subscription period. - Automatic renewals will cost the same price you were originally charged for the subscription. - You can manage your subscriptions and turn off auto-renewal by going to your Account Settings on the App Store after subscribing. There is also a link to manage subscriptions in the WTForecast Purchases page located in the app Settings. - Once a subscription expires, ads will be shown and the extra voice options will be removed. - Read the app Terms of Use / Privacy Policy for more information. Privacy Policy: https://byzantineapps.io/privacy/ Terms of Use: https://byzantineapps.io/terms/ **Make sure you go into the What The Forecast?!! app settings and set the profanity setting to "ON" for the full effect. You won't be disappointed (Or, maybe you will. I don't know you...).
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.