App Overview

Collins Spanish-English icon

Collins Spanish-English

Ultralingua, Inc. · Reference

Over 100,000 translations • Conjugates thousands of Spanish and English verbs • Hundreds of usage notes and examples • No internet connection required

$17.99 · In-app purchases

PRICE
$17.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.7
359 ratings · Top 15%

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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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 Collins 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

Enable offline access to stored words and definitions.

Assumption to check: Limited offline functionality

Validate with people who use this workflow before building.

Hypothesis 2

Offer a freemium model with basic access.

Assumption to check: Higher price compared to competitors

Validate with people who use this workflow before building.

Hypothesis 3

Allow users to customize theme and font size.

Assumption to check: Lack of user customization options

Validate with people who use this workflow before building.

Hypothesis 4

Implement a guided tutorial for first-time users.

Assumption to check: Difficult navigation for new users

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

Over 100,000 translations • Conjugates thousands of Spanish and English verbs • Hundreds of usage notes and examples • No internet connection required Carry a dependable Spanish and English reference everywhere you go with the Collins Pro Spanish-English Translation Dictionary. This app contains dictionary data from HarperCollins in our popular Ultralingua interface. 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 55,000 entries with 100,000 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 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: "It is the most useful app on my ipod touch. You don´t have be connected to the internet which is a serious plus." -User review View our reviews below to see why users love this app, and remember to let us know what you think! This universal app will run on iPad, iPhone, and iPod touch, so you can purchase it once and load it onto all your devices. The iPad and iPhone/iPod touch versions look and behave differently to give you a great experience on every device you own. The interface will change, but you’ll always have the same outstanding language data and tools inside. 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
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.