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.
The free “Vault” app was created by members for members as a means to enter their 4th Step Inventory information in a secure and convenient way
$2.99 · 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 AA 4th Step: map the core Lifestyle 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 customization in journal entries
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of reminders for step work
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social features for support
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Cluttered user interface
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.
The free “Vault” app was created by members for members as a means to enter their 4th Step Inventory information in a secure and convenient way. When complete, you can print out your inventory for use with your 5th Step. Features - 100% Vault Secure - Complete your inventory by column or row - Has Resentment, Fear, and Sexual Conduct Inventories to complete - Type or speak your answers - Easy check-box answers for “Parts of Self Affected” - Prompt lists for jogging your memory for People, Principals, and Institutions. - Prompt lists and check boxes for common Principals,Institutions and Fears - 4th Step term’s definitions in Help section - “Set Daily Reminder” option using your iphones push notifications - Email inventories to yourself or sponsor securely in PDF format - Print them out in horizontal spreadsheet style for easy reading and organization - Hand write in any inventory information you want to in empty rows. - “Delete All” safety feature securely wipes the info from your phone when completed - App "auto-locks" Vault whenever app is closed or whenever iphone is left idle. - All data is secured on the iphone itself. Nothing is stored in "the cloud" where it could be hacked. The Vault 4th Step Inventory App allows you to enter your inventory information in a logical step by step way, then saves the information in an inventory spreadsheet that is laid out much like many of the 4th Step guides that you can find on the internet (like Joe and Charlie’s). The difference is that the Vault app lets you work on your 4th step anywhere, anytime that you are free and in a safe place, NOT just when you are free at your home with your notebook. It is Vault Code protected at all times, so whether it is on your nightstand or at the coffee shop, NO ONE can access your inventory but you. We decided (through much discussion) to minimize all instructions on HOW to do a 4th Step. As alcoholics, we had no shortage of opinions on what each of us believed were the best instructions. We decided to use the original text from the Big Book for the actual questions for you to answer, instead of rewording them as we saw some of the 4th Step "guides" do. Your sponsor may want you to write out (with pen and paper) your 4th step. If that is the case, you may still utilize the app to collect your inventory information, then after printing it out, copy it over by hand. This app is not AA reviewed or approved. AA does not endorse or approve anything or anyone. All quotes are from the 1st edition of the Big Book. This app was created by members for members. Thanks to their generous support this app is FREE to anyone world-wide. Remember: Our primary purpose is to stay sober, and help another alcoholic. Thanks, Twelve Step Apps www.12StepApps.org
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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.