Comparison

Phone Tester vs IDFA Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Phone Tester

Features
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Device Monitor: iDevice is a toolbox to check your iPhone or iPad. It shows your device specs and live memory, storage and battery readings, and lets you run quick hardware tests by eye and ear. --- WHAT IT DOES --- - Device info Model, chip, RAM, storage, screen and iOS version in one place. - Live readings Battery level and charging state, memory, storage, connection type and thermal state, plus a live graph of the CPU used by this app. - Hardware tests Dead pixel test with solid colours, speaker tones, microphone level, bubble level, compass, barometer, proximity sensor, light meter (relative brightness), GPS accuracy, Bluetooth scanner, keyboard and gesture tests. - Export and widgets Export your device specs as a PDF and add Home Screen and Lock Screen widgets. - Pro (optional subscription) Removes ads and unlocks extra tools: decibel meter, gyroscope, magnetometer, metal detector, pedometer, altitude, thermal state, touch latency, haptics, NFC check, Face ID test, charging analyzer, more display tests, CSV and JSON export and PDF without watermark. --- GOOD TO KNOW --- It does not read battery health or charge cycles: iOS does not give them to apps (see Settings > Battery). Some tests need the right hardware, for example a barometer or a proximity sensor. COMMON QUESTIONS Does it need an account or internet? No account. Everything is read from the device itself; only the optional latency test uses the internet. What can it actually measure? Whatever the device's own sensors expose: level, compass, magnetometer, barometer, gyroscope, ambient light (relative, not lux), microphone level, battery level, storage, memory and the screen's dead-pixel test. Does it show battery health? No. iOS does not let apps read battery health or cycle count. Check Settings > Battery > Battery Health. Is the metal detector real? It reads the magnetometer, the same sensor the compass uses. It reacts to ferrous metal and to magnets. It is not an industrial detector and it will not find gold. Is the decibel reading accurate? It is the microphone's reading, uncalibrated. Good for comparing one room to another, not for a legal noise measurement. Does it change anything on my phone? No. It reads and reports; it does not clean, optimise or modify anything. Terms of Use: https://masaapps360.com/devicemonitor/terms/ Privacy Policy: https://masaapps360.com/devicemonitor/privacy/

About

IDFA Viewer

Features
Read full description

Discover every detail of your device! IDFA Viewer is a powerful professional tool designed for developers, tech enthusiasts, and privacy-conscious users. Quickly access complete device information including IDFA advertising identifier, hardware specifications, system status, and network details. Core Features: • IDFA Advertising Identifier - iOS 14.5+ tracking permission support • Device Hardware Info - Model, memory, storage capacity details • System Status Monitoring - Version, build number, timezone info • Screen Technical Parameters - Resolution, scale ratio, dimensions • Network Connection Diagnostics - WiFi, cellular, carrier information • Battery Health Status - Real-time power and charging monitoring • Privacy-First Design - Local processing, no data upload • Multi-language Support - 18 localized language interfaces Professional Tool Features: • One-tap Copy - Quick device info sharing • Real-time Data Updates - Dynamic device status monitoring • Clean Elegant Interface - Professional design, easy to use • Fully Offline Operation - No network connection required • Zero Ad Interference - Pure user experience • Fast Launch - Get device info in seconds Use Cases: • iOS Developers - Test device compatibility • Technical Support - Quick device diagnostics • Privacy Users - Understand device tracking status • System Management - Device information analytics • Tech Enthusiasts - Explore device technical details Privacy Promise: • All data processed locally • No user information collected • No external server connections • Completely transparent permission usage • Complies with Apple privacy policies Continuous Updates: Regular updates support latest iOS versions and device models, ensuring information accuracy and feature completeness. Download now and take control of your device information!

Screenshots

Phone Tester4 screens
IDFA Viewer1 screens

Verdict

The call

The clearest difference is in-app purchases: IDFA Viewer at none against Phone Tester's 4. IDFA Viewer also leads on ads (none vs shown). Phone Tester's advantage is update cadence (every 3 weeks vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Phone Tester sells 4 in-app purchases, starting at $0.99 per 7 days. IDFA Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

Phone Tester ships an update every 3 weeks, IDFA Viewer every 9 months. Both last shipped on October 25, 2026.

Scorecard3 real differences Ā· 3 level
Phone Tester versus IDFA Viewer: the parameters behind the verdict, then further details
ParameterPhone TesterIDFA Viewer
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 9 months
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size12 MB5 MB
Age rating4+4+
DeveloperGrima Hdez翠芬 梁

In-app purchases

4 purchases

Phone Tester

Subscriptions3
  • Device Monitor Pro Weekly3 Days trial$0.997 Days
  • Device Monitor Pro Monthly$1.991 Month
  • Device Monitor Pro Yearly$2.991 Year
One-time1
  • Device Monitor Pro Lifetime$3.99
None

IDFA Viewer

No in-app purchases

Questions

Is Phone Tester free?
Phone Tester is free to download, with in-app purchases available.
Is IDFA Viewer free?
IDFA Viewer is free to download, with no in-app purchases.
Do Phone Tester or IDFA Viewer have ads?
Phone Tester shows ads; IDFA Viewer does not.
Which is updated more often, Phone Tester or IDFA Viewer?
Phone Tester ships an update every 3 weeks, and IDFA Viewer every 9 months. Most recently, Phone Tester was updated on October 25, 2026 and IDFA Viewer on October 25, 2026.

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