Comparison

IDFA & Device Info Viewer vs NotifyMeWhen

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

Head to head
About

IDFA & Device Info Viewer

Access your device's advertising ID (IDFA) and detailed technical specifications. View, copy, and share system information like model, OS, and storage. Designed for developers and curious users, it offers advanced insights through rewarded videos.

Highlights
  • View and copy IDFA
  • Access system details (model, OS, resolution, battery)
  • Unlock extended info (IDFV, region, time zone, storage, memory, CPU)
  • Export or share data
  • No logins or clutter
  • Advanced insights via rewarded video
Features
Read full description

IDFA & Info Checker helps you quickly access your iOS device's advertising ID (IDFA) and technical specs. Whether you're a developer, tester, or just curious, this app gives you everything you need: View and copy your IDFA Get system details (model, OS, resolution, battery) Unlock extended info like IDFV, region, time zone, storage, memory, CPU Export or share your data easily Designed for simplicity — no logins, no clutter Advanced insights are available via rewarded video. Built for developers. Useful for everyone.

About

NotifyMeWhen

This app sends personalized alerts when specific conditions you define are met. It allows you to monitor anything from price drops to product availability, notifying you instantly with evidence. Set it and forget it, and never miss an important update again.

Highlights
  • Customizable alert conditions
  • Instant notifications with evidence
  • Smart background monitoring
  • Simple and intuitive setup
  • Price and availability tracking
  • Scheduled check intervals
Features
Read full description

Never miss what matters. NotifyMeWhen sends you alerts exactly when your conditions are met. KEY FEATURES: - Custom Conditions: Define exactly what triggers your notifications in plain English - Instant Alerts: Get notified the moment conditions are satisfied, with evidence - Smart Monitoring: Set it and forget it - we watch so you don't have to - Simple Setup: Create alerts in seconds with an intuitive interface HOW IT WORKS: 1. Choose what you want to monitor (e.g., "MacBook Pro drops below $1,800") 2. Set your check schedule (hourly, daily, weekly, or custom) 3. Get notified with links and evidence when conditions are met Whether you're tracking prices, waiting for availability, or monitoring any condition that matters to you - NotifyMeWhen has you covered. SUBSCRIPTION: NotifyMeWhen Pro unlocks unlimited alerts and premium features: - Pro Monthly: $4.99/month after a 14-day free trial - Pro Yearly: $39.99/year after a 14-day free trial Payment will be charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Terms of Use: https://xavierengineering.com/notifymewhen/terms Privacy Policy: https://xavierengineering.com/notifymewhen/privacy Download now and never miss another opportunity.

Screenshots

IDFA & Device Info Viewer4 screens
NotifyMeWhen4 screens

Verdict

The call

The clearest difference is in-app purchases: IDFA & Device Info Viewer at none against NotifyMeWhen's 2. NotifyMeWhen's advantage is ads (none vs shown). On price, rating, ratings volume and update cadence there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NotifyMeWhen sells 2 in-app purchases, starting at $2.99 per month. IDFA & Device Info Viewer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for IDFA & Device Info Viewer against 5.0 for NotifyMeWhen. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

IDFA & Device Info Viewer ships an update every 3 weeks, NotifyMeWhen every 10 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
IDFA & Device Info Viewer versus NotifyMeWhen: the parameters behind the verdict, then further details
ParameterIDFA & Device Info ViewerNotifyMeWhen
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews66.7% of reviews—
Number of ratings2 — better1
Update frequencyEvery 3 weeksEvery 10 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size17 MB38 MB
Age rating4+4+
DeveloperRodrigo BellosoLambert Francis

In-app purchases

None

IDFA & Device Info Viewer

No in-app purchases

2 purchases

NotifyMeWhen

Subscriptions2
  • Pro Monthly14 Days trial$2.991 Month
  • Pro Yearly14 Days trial$24.991 Year

Questions

Is IDFA & Device Info Viewer free?
IDFA & Device Info Viewer is free to download, with no in-app purchases.
Is NotifyMeWhen free?
NotifyMeWhen is free to download, with in-app purchases available.
Which has better reviews, IDFA & Device Info Viewer or NotifyMeWhen?
IDFA & Device Info Viewer and NotifyMeWhen are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do IDFA & Device Info Viewer or NotifyMeWhen have ads?
IDFA & Device Info Viewer shows ads; NotifyMeWhen does not.
Which is updated more often, IDFA & Device Info Viewer or NotifyMeWhen?
IDFA & Device Info Viewer ships an update every 3 weeks, and NotifyMeWhen every 10 days. Most recently, IDFA & Device Info Viewer was updated on November 8, 2026 and NotifyMeWhen on October 30, 2026.

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