IDFA Viewer vs Explainrr
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
IDFA Viewer
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IDFA Viewer is the simplest way to find and copy your deviceβs Identifier for Advertisers (IDFA). Whether youβre a developer, marketer, or just curious about your deviceβs data, this app gives you fast and reliable access to your IDFA. Key Features: β’ Instantly view your iPhoneβs IDFA β’ Copy the IDFA with a single tap β’ Clean and minimal design, no distractions Why IDFA Viewer? Appleβs 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.
Explainrr
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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
Verdict
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
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.
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.
| Parameter | IDFA Viewer | Explainrr |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 3 days β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 β better | 26.1 |
| Further details β not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Jesus Alfredo Hernandez Alarcon | Wellness AI LLC |
In-app purchases
IDFA Viewer
No in-app purchases
Explainrr
- Explainrr Monthly7 Days trial$4.991 Month
- Explainr Annual7 Days trial$29.991 Year









