App Overview

Ultralingua Spanish-English icon

Ultralingua Spanish-English

Ultralingua, Inc. · Reference

290,000 translations • Conjugates thousands of Spanish and English verbs • Hundreds of usage notes and examples • No internet connection required

$14.99 · In-app purchases

PRICE
$14.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.8
338 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 included15 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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Quick prompt

> SELECT BUILD PLATFORM:

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

// RORK SYSTEM PROMPT
Rork plan preview for Ultralingua Spanish-English: 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

Include more contextual examples to enhance learning.

Assumption to check: Limited example sentences for translations

Validate with people who use this workflow before building.

Hypothesis 2

Implement offline mode with local caching.

Assumption to check: Lack of offline access to content

Validate with people who use this workflow before building.

Hypothesis 3

Add audio pronunciation for user-entered words.

Assumption to check: No pronunciation feedback on user input

Validate with people who use this workflow before building.

Hypothesis 4

Offer more flexible pricing options or a freemium model.

Assumption to check: High price for full version with limited features

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

290,000 translations • Conjugates thousands of Spanish and English verbs • Hundreds of usage notes and examples • No internet connection required "For serious language students and translators who are looking for more precision." - The New York Times Featured by Apple as "What's Hot" Ultralingua makes apps for people who love languages. You can count on our Spanish-English dictionary to provide all the content you need, along with extra features that help you get the most out of the dictionary. Use our verb conjugation tool to find complete conjugations of thousands of verbs in all standard forms, and the number translator to convert numerals into Spanish or English text instantly. DICTIONARY: • Over 75,000 entries with 290,000 translations • Tap-and-hold any word or phrase and choose "Speak" from the popup menu to hear that word spoken using Apple's built-in text-to-speech feature. • Noun genders • Slang, technical language, and regional differences in spelling and usage • Hundreds of usage notes about troublesome constructions • Smart search results in case you misspell or mistype • Search-as-you-go displays words and narrows your selection as you type Thousands of topical keywords mark translations so you can choose which word is right for your context. This includes hundreds of culinary, plant and animal, geographical, communications, architecture, and business vocabulary labels in the translations. You'll also find: • More than 750 math and science terms • More than 425 technology terms • More than 350 sports terms • More than 225 legal terms • More than 200 medical terms VERBS: • Conjugations for thousands of Spanish and English verbs • Includes all standard tenses and forms • Smart search finds infinitives and catches misspellings • Must-have reference tool for any student or language professional • On iPhone/iPod touch, conjugate a verb from the dictionary results by tapping it MORE: • Translate numerals into Spanish and English text with the number tool • Language swapper button to switch from Spanish-English to English-Spanish • Tap the history button to view the 50 most recent dictionary definitions, verb conjugations, and more in one place. Sort the list alphabetically or by date, and choose to clear the list completely or delete one entry at a time. • No internet connection required • Change your device settings to view the app display in English, Spanish, French, Italian, Portuguese, or German REVIEWS: "I NEVER write reviews for apps but I HAVE to with this one. I've been using it for about a year now in my Spanish classes and while doing homework. It has helped me tremendously! If I can't remember how to conjugate a verb, it can easily do that." -User review "A linguist's dream. When you look something up, it presents you with a wide range of possible meanings, tons of idiomatic expressions, and also the next several head words alphabetically- so you can discover other words just like when you use a real dictionary! Unlike a dictionary, however, Ultralingua will correct my spelling. I have recommended it to several people already!" -User review Dictionaries are available from Ultralingua for many languages, including combinations of English, Spanish, French, Italian, Portuguese, German, and more. See what else we have to offer by searching for Ultralingua in the App Store. Follow us on Twitter and become a fan on Facebook for app news, language learning tips, and more: http://www.twitter.com/ultralingua http://on.fb.me/ifI8Hy

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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.

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BUILD KIT DIFFICULTY
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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.