App Overview

EZ Mailing Labels 4 icon

EZ Mailing Labels 4

John Durand · Productivity

The app automatically keeps your addresses up to date whether you add a contact or edit one.

$3.99 · In-app purchases

PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
2.0
1 ratings · Below Average

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 EZ Mailing Labels 4: map the core Productivity 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

Provide a wider variety of templates and allow for user customization.

Assumption to check: Limited template options and customization.

Validate with people who use this workflow before building.

Hypothesis 2

Focus on intuitive navigation and a cleaner UI design.

Assumption to check: Clunky user interface with poor navigation.

Validate with people who use this workflow before building.

Hypothesis 3

Implement thorough testing and optimization for smoother performance.

Assumption to check: Inconsistent performance and bugs.

Validate with people who use this workflow before building.

Hypothesis 4

Create comprehensive help sections and tutorials for users.

Assumption to check: Lack of user support and documentation.

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

The app automatically keeps your addresses up to date whether you add a contact or edit one. Mailing Lists store all of your settings so in subsequent uses all you have to do it select the mailing list and print it. Create mailing lists from your contact groups with a touch off a button; or, simply type the name. Use the Avery® product lookup to set the page type (letter or A4), labels size, and output type (mailing label or shipping label) automatically. Or, choose an envelope size. Select multiple colors and fonts for your addresses and return addresses. Save label sheets by printing on ones that are partially used by selecting the starting column and row for printing on the first page. Shipping labels and envelopes support a logo or image in the return address. These images can be resized to achieve the best appearance. Create one-off shipping labels or envelopes by using the bypass database button where you can simply type the address and/or return address. Supported Mailing Label sizes are: Letter Sheets: 2.625 X 1 inch , 4.0 X 1 inch, 4.0 X 1.33 inch, 4.0 X 2.0 inch, 1.75 X 0.5 inch A4 Sheets: 63.5 X 38.1 mm, 63.5 X 33.9 mm ,63.5 X 72 mm, 99.1 X 38.1 mm, 99.1 X 42.3 mm, 99.1 X 57 mm, 38.1 X 21.2 mm Shipping Labels: Letter Sheets: 4 X 3 inch, 4 x 3.33 A4 Sheets: 99.1 X 139 mm Envelopes: #10 4 1/8 x 9 1/2 inch#9 #9 3 7/8 x 8 7/8 inch #6-1/4 3 1/2 x 6 inch #6-3/4 3 5/8 x 6 1/2 inch A7 5 1/4 x 7 1/4 inch DL 110 x 220 mm C4 229 x 324 mm C5 162 x 229 mm C6 114 x 162 mm

Written user reviews are not shown here. Check current App Store reviews >

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
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.