App Overview

ContactsPro HX icon

ContactsPro HX

Demodit GmbH · Social Networking

ContactsPro allows you to hide selected contacts and photos in passcode protected areas, making them inaccessible to casual users

$1.99 · In-app purchases

PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.6
5 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 ContactsPro HX: map the core Social Networking 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

Allow users to create custom fields for contacts.

Assumption to check: Limited customization options for contact fields

Validate with people who use this workflow before building.

Hypothesis 2

Implement advanced sorting and filtering options.

Assumption to check: Difficulty managing large contact lists

Validate with people who use this workflow before building.

Hypothesis 3

Provide cloud sync and backup features.

Assumption to check: Lack of cloud backup for contacts

Validate with people who use this workflow before building.

Hypothesis 4

Enhance group functionalities with member roles and permissions.

Assumption to check: Minimal group management features

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

ContactsPro allows you to hide selected contacts and photos in passcode protected areas, making them inaccessible to casual users. As well as common contact information (e.g. phone numbers) you can add a photo album and information on a woman's period to any contact. The search function enables you to search for different information within all your contacts on your device. There is also a function to list all birthdays. FEATURES: • Groups (create, modify and assign for address book contacts) • Hide selected contacts in an unlimited number of passcode protected areas • Add to any contact: ... photo album ... female period (including calendar view) ... website / email login details (plus additional custom fields) ... phone numbers, email addresses, postal addresses, birthdays and notes • Import contacts from original address book • Import / export photos between original photo album and ContactsPro • Switch/move data from protected to unprotected area (and vice versa) • Search for name, department, company, phone number, email address, postal addresses or notes within all contacts • List birthdays of all contacts • Calendar view for birthday • Configurable birthday reminder • Backup to FTP server • Display profile photos in contact list (optional) • Help (see "More/Help" within the app) • And more Pay once – install and use it on multiple devices (iPhone/iPad) with the same App Store account or Family Sharing. ----------------------------------------------- Grouping for some address books (e.g. Exchange) is not supported from iOS respectively from the concerning address book and therefore not possible. Our other app GroupsPro has it's own grouping functionality for such address books.

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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
Zustand
React Navigation
React Native Gesture Handler
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.