App Overview

J.E.W Color dictionary icon

J.E.W Color dictionary

AOBO Co.,Ltd · Reference

This is a color dictionary for Japanese colors, English colors and web safe colors

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

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 included14 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 J.E.W Color dictionary: 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

Offer a wider range of colors and detailed descriptions.

Assumption to check: Limited color options and descriptions

Validate with people who use this workflow before building.

Hypothesis 2

Add user-generated content and sharing options.

Assumption to check: No community features

Validate with people who use this workflow before building.

Hypothesis 3

Implement a feature for live color updates or trends.

Assumption to check: Lack of real-time updates

Validate with people who use this workflow before building.

Hypothesis 4

Allow exporting colors to design software or apps.

Assumption to check: No integration with design tools

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

This is a color dictionary for Japanese colors, English colors and web safe colors. It is a good tool to reference all kinds of colors. J: Japanese traditional colors and JIS colors. E: Colors named in English. W: Web safe colors. The main contents of this dictionary include: 1) 517 Japanese traditional colors, it is the only dictionary in App store that contains so much Japanese colors. 2) 269 JIS colors(147 Japanese colors, 122 Colors from world) 3) 140 colors with English name. 4) 216 Web safe colors. Features of version 4.1: 1, Contents: The list of well-known colors and detail information of each color can be found. the color information includes: RGB, HEX, HSV, CMYK, Munsell value and JIS code. 2, Bookmark: In the color detail information screen, the color can added to bookmark by touch (+) button, you can add max 100 colors into bookmark. 3, Background setting: All the color sample can be set as background color only by touching it. you touch it again to unset it. 4, Searching: In the search screen, the color can be searched by inputting kana, kanji, english word, munsell value or JIS code. 5, Zoom in/out, each color sample screen can be zoomed in/out to your favorite size. 6, User settings: users can customize the application to their favorite style and customize color of yourself. 7, Support landscape and Portrait mode. Supported Language: English, Japanese, Chinese Notice: 1, The color showing on the screen is depended on the device you used, the device shows the color to you basing on RGB value. 2, For the well-known reason that there are not exact English words for corresponding Japanese traditional color, this application is localized only for the words in contents, the left part only JAPANESE is available.

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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 Paper
BUILD KIT DIFFICULTY
Starter

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.