App Overview

ChecktheBack! icon

ChecktheBack!

MobileDev99 LLC · Lifestyle

Over the last few years, there have been several tragic incidents related to infants, young children and pets inadvertently left in the back seats of cars in adverse temperatures

$0.99 · In-app purchases

PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
3.8
4 ratings · Top 50%

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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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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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for ChecktheBack!: 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

Include a wider range of exercises and custom options.

Assumption to check: Limited exercise selection

Validate with people who use this workflow before building.

Hypothesis 2

Ensure reliable delivery of notifications and reminders.

Assumption to check: Inconsistent reminder notifications

Validate with people who use this workflow before building.

Hypothesis 3

Enhance visual design and user engagement through better aesthetics.

Assumption to check: Basic UI design

Validate with people who use this workflow before building.

Hypothesis 4

Provide clearer benefits for premium features to justify cost.

Assumption to check: Subscription value perception

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

Over the last few years, there have been several tragic incidents related to infants, young children and pets inadvertently left in the back seats of cars in adverse temperatures. ChecktheBack! is an app developed by MobileDev99 to help prevent such occurrences. After driving, ChecktheBack! sends a notification to your iPhone and/or Apple Watch to remind you to check the rear seat of your vehicle. The notification is accompanied by a photo that you upload to the app as an additional means of jogging your memory about your precious cargo. Two minutes after sending the initial notification, ChecktheBack! sends another one, just in case you happen to be juggling multiple things at once. Adding widgets to your home screens, Today View, and lock screen will further help to remind you to check the back! Language support added for: Arabic Chinese(Simplified) Chinese(Traditional) French Spanish Features: • Approved by Apple to send Critical Alerts. Notifications appear and a sound is played whether your iPhone is locked, muted or Do Not Disturb is on. • Sends a notification to iPhone and/or Apple Watch to check the backseat shortly after a driving trip. • Allows for adding a photo that appears in your notifications to further help jog your memory. The photo can be updated at any time. • Set it and forget it - no need to interact with the app after initial setup. • Vehicle independence - No fumbling with settings, bluetooth connections, nor linking your phone to vehicles. ChecktheBack! works on your phone regardless of the vehicle you are traveling in. • Uses the most energy efficient algorithms to optimize battery life. • ChecktheBack! widgets are available for home screens, Today View and lock screen. Helps to jog your memory to check the back! Add them to all your home screens, Today View and lock screen to always remind you to be vigilant. • Dismiss current notifications with a long press of a notification. Works on iPhone and Apple Watch notifications. • Acknowledge notifications and dismiss them when a notification is displayed while the app is open. • Reset notifications from within the app by tapping the X in the toolbar. • Open the app by pressing on a widget. Disclamer: ChecktheBack! is NOT a substitute for remaining aware of your children or pets in the backseat and it DOES NOT in any way guarantee outcomes. It is a tool to help you in your efforts to avoid leaving your children or pets in the backseat of a vehicle for an extended period of time. ChecktheBack! SHOULD NOT be solely relied upon to remember to check the backseat before leaving your vehicle.

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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
Zustand
React Navigation
React Native Elements
React Native Push Notification
BUILD KIT DIFFICULTY
Advanced

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.