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.
If you’ve ever quit a finance app because it felt like a second job — this is the opposite of that.
$4.99 · 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 Judith: Due Dates and Bills: 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 often struggle with tracking multiple bills efficiently.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited visibility of financial health due to lack of analytics features.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can feel cluttered with many bills.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Difficulty in managing recurring bills and reminders.
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.
If you’ve ever quit a finance app because it felt like a second job — this is the opposite of that. You know the cycle. Download the app. Set up categories. Log every coffee. Feel good for nine days. Quit. Feel bad. Repeat next January. Judith isn’t an app you “use.” It’s an app you check — like the time. Judith breaks the cycle by asking for nothing. No budget to set. No spending to log. Just your bills — how much and when — lined up in one place. You glance. You know. You go back to your life. THE WHOLE APP IN ONE SENTENCE Every bill you need to settle — cards, banks, loans, utilities, subscriptions — in one glanceable list, nearest due date first, with a running total of what’s still unpaid. That’s it and maybe that’s all you ever needed. WHY A GLANCE IS ENOUGH You can’t get ahead of what you can’t see. When everything due sits in one clear line-up, nothing sneaks up on you. Visibility is anticipation. Anticipation is control. And it costs you three seconds, not a Sunday afternoon of accounting. MADE FOR YOUR WRIST Got an iPhone and an Apple Watch? Judith was built for exactly you. • Watch face complication: total still due, always in view • Watch Action button: press for what’s due next • Paid a bill? Mark it paid from your wrist. Two taps. Done. The app you never open is the app you never quit. GLANCE, DON’T MANAGE • Lock screen & home screen widgets — totals without unlocking • iPhone Action button — one press, your bill total on the lock screen • Monthly calendar — what’s due, what’s paid, at a glance No menus to dig through. No steps. Judith meets your eyes wherever they already are. NUDGES, NOT HOMEWORK Judith reminds you before a late fee does. Late fees are grocery money, gas money — hers is the only reminder that pays you back. AND IF YOU’D RATHER JUST ASK By voice or text: “What’s due before payday?” “How much do I still owe this month?” Plain answers in seconds — 30+ languages, 6 personalities — on your phone or your watch. REAL LIFE, NOT APP LIFE Payday morning: glance at your wrist, see what to set aside, spend the rest guilt-free. 11pm, wondering if you missed something: one peek, back to sleep. Total time in the app this month: maybe four minutes. RUN A BUSINESS? Tag bills personal or business. See them together, split cleanly. WHAT YOU GET • iPhone app + Apple Watch app in one purchase • Unlimited bills — cards, banks, loans, utilities, insurance, subscriptions • Mark paid from phone or wrist • Widgets, complications, Action button support • Monthly calendar of due and paid • Dark mode for night owls PRIVACY BY DESIGN Use Judith anonymously — no logins, no names, no emails. She’s a tracker, not a payer: never touches your bank, never moves money. A No-AI option is available too. Learn more: https://judithforduedates.com/your-data. Learn more: https://judithforduedates.com/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://judithforduedates.com/privacy
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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.
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.