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.
Collaborative smart calendar for your finances with a spark of AI.
Free · 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 Dollarbird - Budget Calendar: map the core Finance 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: Users find it difficult to categorize transactions accurately.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Some users feel overwhelmed by the calendar interface.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Users want better integration with bank accounts.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited customization options for categories and budgets.
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.
Collaborative smart calendar for your finances with a spark of AI. Track and forecast your money as easily as adding events to a calendar! Dollarbird helps you make sense of your financial situation, plan ahead and manage your money together with those who matter. “It’s a delight to use.” - The Next Web “Dollarbird makes sense for anyone who wants to keep a closer eye on their cash flow for better financial planning purposes.” - TechCrunch Also featured in Mashable, Lifehacker, The Guardian, iMore, TUAW, etc. It comes with: • A simple calendar-based interface where you can add, keep track and visualize your transactions. • Automatic balance forecasting that learns from your spending habits and predicts how your balance will evolve over time • Advanced AI that learns over time and makes categorization easier. • Option to collaborate with your partner, family or team to manage your finances and stay up to date on common money matters. • Your data stored in the cloud, available on all your devices regardless of the platform you’re rocking on. Dollarbird offers auto-renewable in-app purchases to access Pro features that allow you to collaborate with your family or team. Payment will be charged to iTunes Account at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. If auto-renewal is not turned off, your iTunes account will be charged for renewal within 24-hours prior to the end of the current period. The renewal cost will be the same as the currently active subscription cost. Subscriptions may be managed by you and auto-renewal may be turned off by going to your iTunes & App Store Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. What our users say about Dollarbird: Andy - “Love it I have been using dollarbird for years now and absolutely love it. The only one of its kind, has helped over the years to make sure I never overspend!” Heather - “Holy budgeting awesome! Who knew tracking payments and expenditures could be so pretty??” Ariel - “Excellent This is exactly what I have been looking for! I don't need all of the fancy finance stuff, just a simple way to see what will be in my account each day based on pre-planned bills/expenses. :)” Allene - “I love this app. It's simple yet robust. I like that I do not have to link all of my accounts to track spending. I can input recurring expenses, easily adjust them, and I can budget. I like the future income and expense forecast feature. I've downloaded literally 25 different apps over the years and I continue to use this one with no complaints.” Emily - “This app changed my life. Works great, intuitive, doesn't link to your bank account, just easy way to record all your purchases. I love the clean simple design. I've used it nonstop since I downloaded it!!” Note: You need to sign up for a user account to be able to use Dollarbird. You can do this on the first screen after the app starts by tapping on the "Sign Up" button. By downloading and using Dollarbird you agree to our Terms of Use: https://legal.dollarbird.co/terms-of-service
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.