App Overview

Device Monitor² icon

Device Monitor²

Fast-Devs Project · Developer Tools

Device Monitor² helps you get to know your iPhone and iPad: monitor resource usage, explore hardware specifications, and test sensors, screens, and cameras

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
9,489 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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Build Kit

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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/
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.

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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 Device Monitor²: map the core Developer Tools workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

Device Monitor² helps you get to know your iPhone and iPad: monitor resource usage, explore hardware specifications, and test sensors, screens, and cameras. Charts show RAM, CPU, and NETWORK activity over time. Hide or reorder panels; on iPad, the layout adapts to the available space. Find detailed data on: - DEVICE; - SENSORS; - RAM; - STORAGE; - CPU; - GPU; - NETWORK; - BATTERY; - DISPLAY; - CAMERA. Explore the detail pages for memory usage, free and used storage, CPU and GPU specifications, network connections, IP addresses, display resolutions, and camera capabilities, depending on your device and system version. You can also: • use customizable widgets on the Home Screen, Lock Screen, and in StandBy on iPhone, with more sizes for NETWORK and charts; • use the Shortcuts app, Control Center controls, and Quick Actions from the app icon; • clean RAM from the app, widgets, Shortcuts, or Control Center; • choose an alternate app icon and view data with the Apple Watch app. In-app purchases unlock additional features: • PRO Kit: - Access to the features of all other kits; - Deep RAM cleaning; - Share device data over your local network and view it in a browser or Device Monitor² for Mac using an access code; - Analyze .synced files for battery health, cycles, capacity, temperatures, and usage, when included in the file; - Copy and paste for displayed data; - A choice of measurement units for temperature, distance, altitude, and pressure. • PiP Kit: - Monitor RAM, CPU, and NETWORK on iPhone and iPad in a compact or expanded Picture in Picture window while using other apps; - On iOS and iPadOS 27 or later, view the FPS of frames captured from the screen in Picture in Picture, with screen selection through the system picker and a live chart in the expanded view, on compatible devices. • Test Kit: - Tests for features available on your device: → GPS; → Compass; → Altimeter; → Accelerometer; → Shake; → Magnetometer; → Gyroscope; → Barometer; → Device Motion; → Motion Coprocessor; → Pedometer; → Bluetooth; → iBeacon; → Microphone; → Volume; → Speakers; → Proximity Sensor; → NFC; → Touch ID or Face ID, if available; → Vibration and Haptic Feedback; → Camera and Flash; → LiDAR on compatible devices: depth, point clouds, 3D meshes, and distance measurements; → Brightness; → Touchscreen with a grid to check the entire surface; → Multi-touch; → Screen colors, including custom colors, and blinking. - Network tools: → Ping; → Traceroute; → DNS Lookup; → Acid3; → Speed Test; → Network device scanning. • Report Kit: - Export data as PDF, CSV, XLSX, and RTF; - Detailed hardware information and charts for visible panels in the PDF report. • Notification Kit: - Alerts when RAM is almost full or the device temperature rises; - Custom time ranges for receiving alerts. • Ads Kit: - Removal of promotional banners. The app is free, with optional in-app purchases. No account is required. Device Monitor² collects no personal or non-personal data.

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

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 which metrics are displayed and how they are presented.

Assumption to check: Limited customization options for monitoring metrics

Validate with people who use this workflow before building.

Hypothesis 2

Implement user-friendly layouts that prioritize important metrics and offer insights.

Assumption to check: Can be overwhelming with too much information

Validate with people who use this workflow before building.

Hypothesis 3

Introduce offline monitoring features that cache data.

Assumption to check: No offline capabilities

Validate with people who use this workflow before building.

Hypothesis 4

Simplify subscription options and provide clearer explanations of each tier.

Assumption to check: Subscription confusion due to multiple tiers

Validate with people who use this workflow before building.

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
Victory Native
Zustand
React Navigation
React Native Share
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.