App Overview

Sign 4 Me icon

Sign 4 Me

Vcom3D · Reference

"Sign 4 Me – A Signed English Translator" is the ULTIMATE tool for learning sign language

$9.99 · In-app purchases

PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
2.8
24 ratings · Below Average

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.

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A product spec, screen plans, and build steps for your coding agent.

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What's included16 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

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.

Screen plan

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.

Differentiate and validate

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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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Sign 4 Me: map the core Reference workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

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

Provide extensive and diverse lesson content.

Assumption to check: Limited sign language resources compared to other apps

Validate with people who use this workflow before building.

Hypothesis 2

Implement a more engaging and user-friendly design.

Assumption to check: Poor user interface and navigation

Validate with people who use this workflow before building.

Hypothesis 3

Offer a free trial period to attract users.

Assumption to check: High subscription cost with no free trial

Validate with people who use this workflow before building.

Hypothesis 4

Ensure high-quality video content for better learning.

Assumption to check: Inconsistent video quality

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

"Sign 4 Me – A Signed English Translator" is the ULTIMATE tool for learning sign language. The ONLY app that provides sign language instruction in 3D! Featured by Apple as New and Noteworthy!! In response to our customers’ feedback, we have added biblical signs. Hope you find them useful! Visit http://signingapp.com for demo video. Our 3D character can be zoomed in or out and rotated to give you the best vantage point for every sign. YOU control the placement of the character – not us! No other product lets you do this! The library includes more than 13,000 words. Type in sentences, phrases, words and even the alphabet. Everything you enter will be saved in your History. Easily locate your entries by date or alphabetically. You can delete whatever you don’t want to keep. Use the controls to speed up or slow down the signing; turn on or off the looping feature; and send the character to his “home” or default position. SEE BELOW FOR HELPFUL TIPS AND CONTROLS. Vcom3D, the original developer of sign language software using SigningAvatar® characters, wants you to be able to learn sign language the way you need to communicate. If you have friends or a co-worker who is Deaf or Hard-of-Hearing, now you can learn signs to communicate with them. The playback is in Signed English for the hearing person who wants to learn basic sign. Our ASL team of 8 Deaf professionals has created these accurate signs based on their native knowledge of sign language. Visit us on the web for more information about our research to support the needs of the Deaf community and provide tools for learning and accessibility. NOTE ON Signed English VS. ASL – Dynamic translation from English to true ASL is a complex problem just as translation from any language into another would be. We are currently researching this technology. This product is intended for the beginning learner or anyone with an interest in learning signs. We hope to foster better communication between the hearing and the Deaf/Hard-of-Hearing communities. HELPFUL TIPS – To learn how to reproduce a sign, we recommend slowing down the signing speed, zooming in and rotating the character so you can see it from different angles. This will give you a better view of the proper handshape and movement of the sign. This is especially helpful for finger spelling. If you are interested in learning the alphabet, type in ABCDE, etc. with no space in between each letter. The character will show you what each letter sign looks like. 3D CONTROLS – Zoom in – Spread 2 fingers across screen. Zoom out – Bring 2 fingers back together. Rotate – Swipe with one finger. Pan – Use 2 fingers to grab and move character. 2D CONTROLS – Clear all history - Tap the menu icon in the history view, then tap "Clear History". Delete one history entry - Long press on a history item and tap "Delete".

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
Supabase
React Navigation
Zustand
React Native Video
BUILD KIT DIFFICULTY
Advanced

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.