App Overview

ClockZ Pro icon

ClockZ Pro

Rage Box · Productivity

ClockZ Pro is a clock app that displays the current time

$9.99 · In-app purchases

PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.2
88 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.

Build your own version

Build Kit

Make this idea yours

A product spec, screen plans, and build steps for your coding agent.

First kit free with a verified email

Add to a Remix

Combine features and design from your favorite apps.

Kit ready. Verify your email to download it.

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/
Preview a sample Build Kit No email needed

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.

JavaScript is required to complete mailbox verification.

Free quick prompt For a smaller starting point

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 ClockZ Pro: map the core Productivity workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

Preview ready. Verify your email to reveal and copy the full prompt.

JavaScript is required to complete mailbox verification. Return to this prompt preview.

Continue in Rork copies the full prompt to your clipboard first, then opens Rork in a new tab.

Continue in Rork >

Affiliate link: CloneChart may earn a commission at no extra cost

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 customize sounds, themes, and timer features.

Assumption to check: Limited customization options for timers and alarms

Validate with people who use this workflow before building.

Hypothesis 2

Simplify the interface to focus on core functionalities.

Assumption to check: Cluttered interface with too many features

Validate with people who use this workflow before building.

Hypothesis 3

Add calendar sync to manage alarms and tasks more effectively.

Assumption to check: Lack of integration with calendar apps

Validate with people who use this workflow before building.

Hypothesis 4

Implement recurring timers and reminders for tasks.

Assumption to check: No option for recurring timers

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

ClockZ Pro is a clock app that displays the current time. Highly customized with 3D map and photo wallpaper changing the color and size of the clock font, additionally widget display is also possible. Music alarm, timer, stopwatch were added in the latest version. What's difference from ClockZ: • Custom text can be displayed under the clock • No Ads • Apple Watch app • Apple TV app Features: • Basic features of 18 types of backgrounds, text colors, fonts • Automatically unlock (Automatically does not sleep when launching the app) • Seconds, Dates and Weeks • Music Alarm • Your Photo and 3D Map for backgrounds (Paid) • Timer • Stopwatch • Battery display • Theme (Paid) • Text size (Pinch gesture or double tap) • Brightness • Sharing feature • AR Clock (Migrate to new app) Design • Clock for large and simple • Diversity • Optimized for Night Stand Supports: • iPhone / iPad and Latest device, Latest iOS (You can use multiple devices with single purchase) • Device Rotate (Portrait / Landscape) • Quick Action (3D touch) • 15 languages • Widget (Latest Search Result + Launch App) • iMessage (Current time display) • Apple TV (Current time display) • Apple Watch (Remote control for text colors) -------------------------------- Frequently Asked Questions Q. About AM/PM or 24-Hour Time A. You can change from the Setting app < General < Date & Time < 24-Hour Time. Q. About Alarm A. Make sure that notification is enabled from the launch app < Plus button < Settings. Please also check the volume and set time. Q. About Time lag A. ClockZ is synchronized with the time of the your device. Please check the time setting of the your device.

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

Screenshots

< Scroll to see more >

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
TypeScript
react-native-sound
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.