App Overview

Oxford Dictionary of English. icon

Oxford Dictionary of English.

Enfour, Inc. · Reference

Enfour, Inc

$14.99 · In-app purchases

PRICE
$14.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.7
75 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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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 Oxford Dictionary of 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

Implement an optimized search algorithm for faster results.

Assumption to check: Search feature can be slow and unresponsive

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to download words for offline use.

Assumption to check: Limited offline access to dictionary content

Validate with people who use this workflow before building.

Hypothesis 3

Include more diverse example sentences for clarity.

Assumption to check: Inadequate examples for word usage

Validate with people who use this workflow before building.

Hypothesis 4

Introduce a free tier with limited features to increase user acquisition.

Assumption to check: High price point for full access

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

Enfour, Inc. has built Oxford's largest single volume English Dictionary, plus audio —making this the largest Oxford English reference on ANY mobile platform. ● The entire Oxford Dictionary of English, Second Edition (ODE) ● 72,000 pre-recorded sound files from British English voice actors. —yes, over 300MB! (Actually over 400MB when installed) That's ten times more data than similar applications. *********************************************** ◼ Enfour, Inc.'s Application Features: ▪ full content of the unabridged texts ▪ complete appendices and front matter ▪ unique three-way cross-referencing search ▪ real-time progressive look-up ▪ an "AI Teacher" for deeper explanations or help for ESL students in 98 languages ▪ wildcard searches for unknown spellings and quizzes ▪ hyperlinking for dictionary & appendices ▪ fallback online search for esoteric or archaic words and the latest slang ▪ unique support for round-trip search from other applications (the API is free. Contact Enfour, Inc.) ▪ bookmarks with editable notations ▪ iCloud Bookmark syncing ▪ automatic history ▪ "Share" module to search within other apps  - with a history feature, so you can study later ▪ "Word-of-the-Day" feature with multiple words sets ▪ "Today" & LockScreen widgets ▪ AI boosted anagram generator ▪ 3D Touch support ▪ DarkMode support ▪ Dyslexic mode and VoiceOver support ▪ iPad Pro multi-screen and Drag & Drop ▪ iPad "Fast App Switching" (Multitasking) ▪ Supports iOS 12 through to iOS 26 ▪ iPhone, iPod, iPad and macOS support ▪ iPhone 16 support ▪ complete offline use - no internet connection is required ************************************************ ◼ Description ▶ The foremost single-volume authority on the English language ▶ Hundreds of new words and senses derived from the latest research from the Oxford English Corpus, giving the most complete and accurate picture of the English language The Oxford Dictionary of English is at the forefront of language research, focusing on English as it is used today, informed by the most up-to-date evidence from the largest language research programme in the world, including the 800-million-word Oxford English Corpus. This revised edition includes hundreds of brand-new words and senses, as well as up-to-date encyclopedic information, and extensive appendices covering topics such as countries, heads of state, and chemical elements. ◼ Sound Files from Oxford Sound Bank ▶ over 72,000 pre-recorded sound files linked to headwords ◼ Features: ▶ high-quality recordings with native English pronunciations ▶ accurate coverage of different homographs, variant forms, and inflections ◼ Supported Thesaurus software: Oxford Thesaurus of English (OTE) Rogets II -the New Thesaurus Companion Thesaurus -with SpellChecker ********************************************** Oxford Dictionary of English (ODE), Second Edition revised © Oxford University Press 2005 Soundfiles from the Shorter Oxford English Dictionary © Oxford University Press 2002 All rights reserved Oxford University Press

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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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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.