App Overview

4x4 Color icon

4x4 Color

ByFerial LLC · Lifestyle

Add your photo and select a few colors and the 4X4 Color app will determine your best colors to help you look younger, healthier and more vibrant.

$9.99

PRICE
$9.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.0
4 ratings · Top 30%

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 4x4 Color: map the core Lifestyle 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

Competitive pricing with generous free tier

Assumption to check: Expensive subscription

Validate with people who use this workflow before building.

Hypothesis 2

Focus on most-requested features first

Assumption to check: Missing features

Validate with people who use this workflow before building.

Hypothesis 3

Optimize for 60fps, fast load times

Assumption to check: Poor performance

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

Add your photo and select a few colors and the 4X4 Color app will determine your best colors to help you look younger, healthier and more vibrant. Most people have never had their colors analyzed, therefore putting them at a big disadvantage in life. Color analysis has been used by many to ensure they are at their best all the time. If you would like to move up the corporate ladder, win a job, someone’s heart or would simply like to feel good about yourself then you want to have your colors done. The 4X4 Color app will select your best 60 colors (your season) to give you that big advantage in life. You can purchase your personal color swatch so you always have your colors on hand for shopping, make-up and at the hair dresser. The 4X4 color analysis system is one of the most accurate personal color analysis systems that works on all skin types. It is easy and straightforward. The 4X4 color app takes all the guess work out of color analysis by using the latest patented technologies and techniques, providing you a simple tool to use to become a better you. The 4X4 Color app is based on science mixed with art and is revolutionizing the color analysis industry. The conventional color analysis is based on the four seasons – Autumn, Winter, Spring and Summer. The conventional color systems had some issues/grey areas and the 4X4 color system has resolved these issues and uses the Munsell color system to ensure completeness in seasonal color analysis. Delving into history, our researchers studied various types of color theory, and now the 4X4 Color System is endorsed by the Munsell color system. The 4X4 color systems is now the foundation of so many new color analysis methods. The 4X4 Color Analysis System is a unique system that caters to all skin types. The foundation of the four seasons is kept, and now expanded to the (4X4) sixteen seasons with four extended categories – Pure, Tinted, Toned and Shaded. To help provide more details, traditionally, Autumn is dark and fiery, Winter has dark and light colors in sharp contrast, Spring represents growth and has vibrant colors while Summer has cool and soft calm colors that reflect full life. As an example, Summer tends towards colors that are cool light but soft, representing nature in the prime of life. The categories for Summer are Pure Summer, Tinted Summer, Toned Summer, and Shaded Summer. Each category is fine-tuned to represent a range of colors and helps with a variety of skin tones. Pure summer is the cool and brightest colors of summer, representing the growth of life. Tinted summer holds the lightest hues, harkening back to the sky on a cloudless day. Toned summer is in the medium range, representing the soil and the bark of trees. Shaded summer is the deepest colors, representing the earth and the life that lives on it. These categories are spread through the rest of the four seasons, leading to new ways to use fashion, make up and interior design. ByFERIAL is the creator of this new app and the 4X4 Color Analysis System. ByFERIAL is a certified full-service image consulting and training firm providing image, color, make-up, make-overs and personal branding services.

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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
RevenueCat
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.