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.
SA Group Text is the most efficient way to send group messages
$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.
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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 SA Group Text: map the core Productivity 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 features compared to other messaging apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface is cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Notifications are unreliable
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Poor performance with large groups
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.
SA Group Text is the most efficient way to send group messages. You can add recipient names and phone numbers in an Excel file. You can enter static or personalized text messages right in the Excel spreadsheet. For example, if you enter “Hi {first name}, ...” in a message, the app will take the first name of the recipients and personalize the message, generating text such as “Hi David, …” , “Hi Michael, …”… You can use an Excel spreadsheet again without editing the spreadsheet on your computer. You can just pick an Excel file, type in a quick message and send it. It is similar to sending a message to a group. SA Group Text is also an easy way to send text messages to the contacts on your iPhone. Just pick groups or individual contacts, type in a static or personalized message and send it. Who uses SA Group Text ? 1) Small Businesses 2) Religious Groups 3) Retail 4) Nightlife - Bars & Nightclubs 5) Restaurants 6) Banks/Financial Institutions 7) Insurance Companies 8) Event Marketers (With hundreds (or even thousands) of people attending your events) 9) Traditional Media 10) Schools 11) Social Groups 12) Real Estate With SA Group Text you can : 1. Import group SMS from an Excel file via USB/WiFi/Email. 2. Create your own groups in an Excel spreadsheet and send messages to them. 3. Send unsent messages . If the app is terminated while sending group SMS, the sending task will be continued next time you launch the app.. 4. Insert tags ({nickname},{firstname},{lastname},{nickname},{company} etc) in your text message in order to create personalized messages. When you use this function, each message has a personal touch. For example: Dear {firstname}, Welcome to our dinner party. 5. Use MS Excel 2003 / 2007 / 2010 , OpenOffice.org , Apple Numbers or any other Excel-compatible applications to create your group text messages. Be sure to save as an Excel 97-2003 Workbook. 6. Export an Excel template , and use it to create your own Excel file. 7. Send SMS to as many recipients as you need within your Excel file 8. Limit the number of recipients per message. The app will split a large message into multiple separate messages. 9. Create a formatted Excel file easily. The file can contain only two columns : Mobile and Message. You can find more example spreadsheets on the app’s website. 10. Create flexible group SMS in your spreadsheet. For example “{family} Family – Practice Tomorrow at 5pm for little {kidname}!” becomes “David Family – Practice Tomorrow at 5pm for little Johnny!”. The names change over and over again. 11. Create contact groups, you can create in-app groups for Exchange contacts. 12. Choose contacts organized in groups, companies, job titles and cities. 13. Preview messages before sending them out. 14. Skip duplicated phone numbers and messages. 15. The lite version has ads. 16. Send online sms, supporting Twilio and Nexmo. 17. Find a way to send messages without user interaction, please contact to [email protected] for details. IMPORTANT NOTE : Please check the setting of "Group Messaging" on the iPhone settings. If the option is available, set it to OFF (yes OFF) to be able to send to large groups. If it's on, the iPhone will try to send MMS instead of SMS and will fail to send to large groups. More detail and up-to-date help guides are available in samapp.com.
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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.