Comparison

IDFA 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

IDFA

Features
Read full description

Get your device's Identifier for Advertisers and system info. What is IDFA? The IDFA (Identifier for Advertisers) is a unique, random identifier assigned by Apple to your device. It's used to: • Track user behaviour across apps and websites • Measure ad campaign effectiveness • Deliver personalised advertising

About

IDFA Viewer

Features
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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

IDFA4 screens
IDFA Viewer1 screens

Verdict

The call

The clearest difference is ads: IDFA Viewer at none against IDFA's shown. IDFA Viewer also leads on iOS requirement (15.6 vs 18). IDFA's advantage is update cadence (every 3 days vs every 9 months). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

IDFA ships an update every 3 days, IDFA Viewer every 9 months. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

Scorecard3 real differences Ā· 3 level
IDFA versus IDFA Viewer: the parameters behind the verdict, then further details
ParameterIDFAIDFA Viewer
PriceFreeFree
Update frequencyEvery 3 days — betterEvery 9 months
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS1815.6 — better
Further details — not scored
Size9 MB5 MB
Age rating4+4+
DeveloperPaul Thornton翠芬 梁

In-app purchases

None

IDFA

No in-app purchases

None

IDFA Viewer

No in-app purchases

Questions

Is IDFA free?
IDFA is free to download, with no in-app purchases.
Is IDFA Viewer free?
IDFA Viewer is free to download, with no in-app purchases.
Do IDFA or IDFA Viewer have ads?
IDFA shows ads; IDFA Viewer does not.
Which is updated more often, IDFA or IDFA Viewer?
IDFA ships an update every 3 days, and IDFA Viewer every 9 months. Most recently, IDFA was updated on September 30, 2026 and IDFA Viewer on October 12, 2026.

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