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.
Send and RECEIVE faxes and voicemail on your iPad/iPhone with My Toll Free Number, a robust app with support for voicemail, printing, and faxing.
$0.99 · 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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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 My Toll Free Number + Fax, VM: map the core Business 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: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor performance
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.
Send and RECEIVE faxes and voicemail on your iPad/iPhone with My Toll Free Number, a robust app with support for voicemail, printing, and faxing. FEATURES • View/print many document types, including PDF, Word, Excel, bitmap, TIFF, text, HTML, Open Office, GIF, and encapsulated PostScript. • Create new text documents. • Use a web browser to transfer files between your computer and this app. • Print to networked or shared printers. No additional software is necessary. This app includes support for over 1,400 printers from HP, Epson, Canon, Samsung, Brother, Lexmark, Xerox, Ricoh, Oki, Kyocera, NRG, Lanier, and many more! • Send faxes to over 220 countries and territories worldwide - no subscription required![1] • Get a professional USA-based toll-free number for your incoming faxes and voicemail.[2] • Separate business and personal calls. • Expand the reach of your business nationwide. • Receive both voicemail and faxes on the same phone number. • Listen to voicemail, send faxes[1], and receive faxes[2] directly on your iPad/iPhone. • Print and re-fax received faxes from your iPad/iPhone. • Receive immediate notification of all incoming calls. • Capture and process images from your onboard camera or photo album. DOES THIS APP SUPPORT MY PRINTER? See the list of printer models this app supports at http://www.ndilitechnologies.com/help.html. HOW DO I USE THIS APP TO PRINT/FAX FROM MY OTHER APPS? Import files from your other apps into this app, and then print/fax them. (The iOS is designed such that each app you install is given its own storage space. There is no centralized (shared) storage space on your device. This means that this app's proprietary printing engine only works within this app. The iOS cannot use this app to print files within another app's storage space—for example, files stored in Pages, Numbers, Safari, Notes, Mail, etc. Therefore, files created in other apps must be imported into this app.) HOW DO I IMPORT FILES INTO THIS APP? • Use a web browser to transfer files between your computer and this app. • Use iTunes to upload files into this app. • Use a WebDAV server to transfer files. • Email a file to yourself. Then, open the Mail app, press and hold down the attachment until the "Open In..." menu appears. Select this app from the list of apps displayed. IS THERE HELP AVAILABLE? Yes. In addition to the built-in user guide, you can also ask questions via our real-time chat Customer Support module. [1] Each fax unit purchases a one-page fax that can be sent in 60 seconds or less to a destination in the United States or Canada. The number of fax units needed to transmit a one-page 60-second fax to a destination in another country is listed in the rate card within this app. Please note that a page that requires a longer transmission time (for example, a page containing high resolution graphics) consumes additional fax units. [2] To receive voicemail or faxes, you must setup an incoming toll-free phone number. The toll-free phone number requires a monthly subscription. 60 minutes/month are included free with subscription. Toll-free numbers are USA-based numbers and are accessible in the United States only. Optional Toll Free Number Subscription Notes: • Title: Toll-Free Number Subscription • Length: 1,3, 6 or 12 month options • Payment will be charged to iTunes Account at purchase confirmation • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period • No cancellation of the current subscription is allowed during active period • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase • Privacy Policy: https://www.ndilitechnologies.com/privacy.html • Terms of use: https://www.ndilitechnologies.com/termsofuse.html
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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.