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.
RadioMail provides access to the Winlink amateur radio email system
$14.99 · 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.
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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 RadioMail: map the core Utilities 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 report difficulty in finding recorded messages.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Some users experience issues with audio quality.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited sharing options outside of email.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High one-time purchase cost.
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.
RadioMail provides access to the Winlink amateur radio email system. Compose, read, and reply to messages from anywhere. A valid amateur radio license is required to use this app. NETWORK ACCESS Send and receive messages via telnet using the main Winlink server or through the Amateur Radio Emergency Data Network (AREDN). RADIO ACCESS Pair your device with a VARA or KISS TNC modems using WiFi or Bluetooth. Packet mode on VHF/UHF supports the following radios and devices: Radios with Built-in TNCs (Auto-sets and restores frequency on those radios) · BTECH UV-PRO, UV-50PRO · VERO VR-N76, VR-N7600 · RADIODITY GA-5WB, DB50-B · Kenwood TH-D74*, TH-D75* · PicoAPRS V4 *Requires B.B. Link Bluetooth adapter Portable KISS TNCs · Mobilinkd TNC3, TNC4 · LiNK500 TNC · DigiPi · Dire Wolf Software TNC For Robust Packet Mode on HF: ・LiNK500 TNC Configuration of up to two digipeaters is possible for packet or VARA FM mode connections. Note for VARA: An operational version of the VARA modem must be available on a separate computer. BUILT-IN PACKET MODEM Connect to packet stations via the internal 1200 baud AFSK modem using compatible audio interfaces: ・Digirig Lite ・AIOC (All-In-One Cable) BUILT-IN ARDOP MODEM Connect to ARDOP stations via the internal modem using compatible audio interfaces and radios: ・Digirig Lite ・AIOC (All-In-One Cable) ・ICOM IC-705 (USB for audio, Bluetooth for CAT control) STATION DIRECTORY Automatic retrieval of station details from Winlink, organized by proximity to your current location. Custom stations can be added for peer-to-peer connections. Note: Peer-to-peer connections are only outbound. FAVORITES LIST Save stations to your favorites list for quick access by modes and bands during connection initiation. PHOTO ATTACHMENTS Sharing photos is easy with RadioMail. Access your device's camera directly or attach photos from your library. The app optimizes images to reduce transmission time. Preview and annotate received attachments, save to local folders or iCloud, or share via other apps. FORMS Compose and view 100+ standard Winlink forms. Forms are kept current with automatic updates. GPS coordinates are pre-filled according to user location. Received forms can be shared or printed as PDFs. Custom specialized forms can be installed by importing a zip file. Note: Form access is an optional premium feature requiring an in-app subscription. POSITION REPORT Utilize your phone's internal GPS for accurate location data in position reports, which are posted to the Automatic Packet Reporting System (APRS) network. NOTIFICATIONS RadioMail fetches new messages automatically and shows notifications while running in the background, eliminating the need to constantly check for new messages. Note: This feature is only available for telnet connections. ADDRESSES Send or receive messages with your primary Winlink account, tactical addresses, or secondary accounts. Seamlessly send messages to Winlink and regular email addresses. Look up contacts from the address book and access their email addresses when composing messages. RadioMail is independently developed and not affiliated with the Amateur Radio Safety Foundation, Inc. (ARSFI) who supports the Winlink Global Radio Email system. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.