App Overview

Caller Details - FindBy Number icon

Caller Details - FindBy Number

Zelda Bruno · Utilities

Find who’s calling with smart search-based Caller ID features and take control of your communication in a simple, organized way.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
5.0
1 ratings · Top 5%

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 included16 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 Caller Details - FindBy Number: map the core Utilities 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

Enhance database for more comprehensive details

Assumption to check: Limited search results and details for common numbers

Validate with people who use this workflow before building.

Hypothesis 2

Optimize API calls and local caching

Assumption to check: Inconsistent performance during peak usage

Validate with people who use this workflow before building.

Hypothesis 3

Implement a reporting system for users to flag inaccuracies

Assumption to check: No user feedback mechanism for incorrect results

Validate with people who use this workflow before building.

Hypothesis 4

Offer themes and layout customization for better user experience

Assumption to check: Basic UI and lack of customization options

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

Find who’s calling with smart search-based Caller ID features and take control of your communication in a simple, organized way. -Smart Number Search Quickly search phone numbers to view available information and recognize unknown callers. The app provides relevant details instantly, helping you make informed decisions when needed. -Caller Information Get helpful insights related to phone numbers in a clear and easy-to-understand format. Information is available when you search, giving you full control over how you use it. -Share Your Location
Easily share your current location with friends and family whenever needed. Perfect for meeting up or ensuring safety, with full control over your sharing. -Call Reminders
Never miss important calls again. Set reminders for meetings, follow-ups, or personal conversations and stay organized with timely alerts. -Explore Nearby Places
Discover restaurants, cafés, hospitals, and more around you. Find useful places quickly and conveniently within the app. -Smooth & Simple Experience
Enjoy a clean design and smooth performance that makes navigation effortless. Every feature is built to be fast, responsive, and easy to use. Caller Details – Find by Number is your all-in-one companion for smart number search, location sharing, reminders, and nearby discovery—making everyday communication simple, controlled, and convenient. ~~~~ PAYMENT INFORMATION ~~~~ * Payment will be charged to your iTunes account at the time of purchase confirmation. * The subscription automatically renews for the same price and duration as the original package (weekly, monthly, quarterly, or yearly) unless auto-renew is turned off at least 24 hours before the end of the current period. * Your account will be charged for renewal within 24 hours before the end of the current period at the cost of the chosen package (weekly, monthly, quarterly, or yearly). * Subscriptions may be managed by the user, and auto-renewal may be turned off by going to the user's iTunes Account Settings after purchase. * No cancellation of the current subscription is allowed during the active subscription period. * You may cancel a subscription during the trial period via the subscription settings in your iTunes account. This must be done 24 hours before the end of the trial period to avoid being charged. * You may turn off auto-renewal of your subscription via your iTunes Account Settings. However, you cannot cancel the current subscription during its active period. * Any unused portion of a free trial period will be forfeited when you purchase a Heart Rate Monitor VIP subscription. ~~~~~~ TERMS OF USE & PRIVACY POLICY ~~~~~~ * Privacy Policy: - https://sites.google.com/view/callerdetailsprivacy/home * Terms and Conditions: - https://sites.google.com/view/callerdetailsterms/home Download now and simplify your calling, searching, and location-sharing experience in one smart app!

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
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.