App Overview

Lingvano - Learn Sign Language icon

Lingvano - Learn Sign Language

Lingvano GmbH · Education

Join 5 million people and start building bridges by learning ASL with the most popular sign language learning app.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
120,921 ratings · Top 5%

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 included17 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 Lingvano - Learn Sign Language: map the core Education workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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App evidence

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

Screenshots

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App Store description

Join 5 million people and start building bridges by learning ASL with the most popular sign language learning app. Lingvano is the perfect starting point for beginners, with video lessons made by Deaf teachers that can be done anywhere, anytime. You'll start signing in your very first lesson, and can become conversational with just 10 minutes/day of practice! #Bite-sized lessons make learning easy – Build your vocabulary and learn grammar in 600+ lessons – Match signs to the correct picture or video with visual lessons – Check in on your signing progress with end of chapter quizzes – Tap the turtle icon to slow down the speed of any video or dialogue #Practice tools make learning stick  – Practice vocabulary, fingerspelling (ABCs), and number signs to remember more – Look up any signs you forgot or don’t yet know in our handy dictionary – Review signs and retain what you've learned with our flashcards #Special rewards make learning fun – Earn special awards as you learn – Collect curiosities as you complete unique lessons – Test your skills and unlock up to 5 stars in milestone lessons – Unlock learning streaks with daily learning – Earn streak freezes to protect your learning streak by getting lessons 100% correct #Real dialogues help you become conversational fast – Sharpen your conversation skills with real-life dialogue lessons between Deaf people – See different real-world signing styles and learn from a variety of Deaf teachers Ready to start learning? Download Lingvano now, and join our mission to break down language barriers and build bridges with Deaf family, friends, colleagues, and neighbors.  ------------------------------ If you enjoy learning with Lingvano, you can purchase a premium subscription to unlock all learning content and features. Your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current payment period. Your account will be automatically charged at the same price for renewal within the 24-hour-hour period prior to the end of the current payment period unless you change your subscription preferences. Subscription options: - 1 month - 3 months - 12 months ------------------------------ Privacy policy: https://www.lingvano.com/asl/privacy-policy/ Terms of use: https://www.lingvano.com/asl/terms-conditions/

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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

Incorporate gamified elements to enhance user engagement.

Assumption to check: Limited interactivity in lessons

Validate with people who use this workflow before building.

Hypothesis 2

Implement detailed progress tracking with visual stats.

Assumption to check: Difficulty tracking progress

Validate with people who use this workflow before building.

Hypothesis 3

Simplify the subscription model and provide clear explanations.

Assumption to check: In-app purchase confusion

Validate with people who use this workflow before building.

Hypothesis 4

Add offline course downloads for better accessibility.

Assumption to check: Lack of offline functionality

Validate with people who use this workflow before building.

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
Zustand
React Navigation
React Native Video
BUILD KIT DIFFICULTY
Intermediate

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.