Comparison

IDFA Viewer vs Explainrr

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

Head to head
About

IDFA Viewer

Features
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IDFA Viewer is the simplest way to find and copy your device’s Identifier for Advertisers (IDFA). Whether you’re a developer, marketer, or just curious about your device’s data, this app gives you fast and reliable access to your IDFA. Key Features: β€’ Instantly view your iPhone’s IDFA β€’ Copy the IDFA with a single tap β€’ Clean and minimal design, no distractions Why IDFA Viewer? Apple’s Identifier for Advertisers (IDFA) is a unique identifier used in apps for analytics and advertising. Finding it manually can be confusing β€” IDFA Viewer makes it quick and effortless. Perfect for developers testing ad frameworks, marketers validating campaigns, or users who want transparency about their own device identifiers.

About

Explainrr

Features
Read full description

Ever read something and just... didn't get it? Explainr fixes that. Highlight any text from articles, books, PDFs or anywhere you read, and get it explained instantly in a style that actually makes sense to you. HOW IT WORKS Select any text you don't understand β†’ pick your explanation style β†’ get it. Simple. 8 EXPLANATION STYLES - TikTok β€” punchy, fun, Gen Z energy - ELI5 β€” explain it like I'm 5 years old - Podcast β€” like two friends casually discussing it - Story β€” turn it into a short narrative - Scientific β€” clear and structured - Short β€” just the core idea in 3 sentences - Tweet β€” a viral thread breaking it down - Bedtime Story β€” soft, gentle, magical WORKS EVERYWHERE YOU READ Explainr lives in your share sheet. Highlight text in Safari, Apple Books, PDFs, Notes or any app β†’ tap Share β†’ Explainr pops up instantly. SAVE YOUR LIBRARY Every explanation is saved and organized in folders you create. Politics, self-development, science β€” build your personal knowledge library. LISTEN TO EXPLANATIONS Rather hear it? Tap play and listen to any explanation read aloud at the perfect pace. 7 DAYS FREE Try everything free for 7 days. No commitment. AI DISCLOSURE Explainr uses Claude AI (Anthropic) to generate explanations. Explanations are for educational purposes only. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://explainerr.carrd.co

Screenshots

IDFA Viewer3 screens
Explainrr4 screens

Verdict

The call

The clearest difference is in-app purchases: IDFA Viewer at none against Explainrr's 2. IDFA Viewer also leads on iOS requirement (18.0 vs 26.1). Explainrr's advantage is update cadence (every 3 days vs every 10 months). On price, ads and device support there is nothing between them.

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

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

Both are free to download. Explainrr sells 2 in-app purchases, starting at $4.99 per month. IDFA Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

IDFA Viewer ships an update every 10 months, Explainrr every 3 days. The most recent releases landed on October 30, 2026 and October 26, 2026 respectively.

Scorecard3 real differences Β· 3 level
IDFA Viewer versus Explainrr: the parameters behind the verdict, then further details
ParameterIDFA ViewerExplainrr
PriceFreeFree
Update frequencyEvery 10 monthsEvery 3 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 β€” better26.1
Further details β€” not scored
Size5 MB6 MB
Age rating4+4+
DeveloperJesus Alfredo Hernandez AlarconWellness AI LLC

In-app purchases

None

IDFA Viewer

No in-app purchases

2 purchases

Explainrr

Subscriptions2
  • Explainrr Monthly7 Days trial$4.991 Month
  • Explainr Annual7 Days trial$29.991 Year

Questions

Is IDFA Viewer free?
IDFA Viewer is free to download, with no in-app purchases.
Is Explainrr free?
Explainrr is free to download, with in-app purchases available.
Do IDFA Viewer or Explainrr have ads?
Neither IDFA Viewer nor Explainrr shows ads.
Which is updated more often, IDFA Viewer or Explainrr?
IDFA Viewer ships an update every 10 months, and Explainrr every 3 days. Most recently, IDFA Viewer was updated on October 30, 2026 and Explainrr on October 26, 2026.

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