Comparison

My Device ID by AppsFlyer vs SecondLoop

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

Head to head
About

My Device ID by AppsFlyer

Easily view and share your device identifiers, including IDFA and IDFV. This tool allows you to quickly whitelist your device as a test device within your AppsFlyer account, crucial for SDK integration testing.

Highlights
  • View Device ID (IDFA, IDFV)
  • Share Device ID
  • Whitelist test device for AppsFlyer
  • Directly add device to AppsFlyer account
  • Facilitates SDK integration testing
Features
Read full description

With My Device ID by AppsFlyer you can easily view and share your Device ID including IDFA and IDFV. You can also add your device as a whitelisted test device to your AppsFlyer account directly from the app. Whitelisting a test device in your AppsFlyer account is an important part of testing your integration with AppsFlyer SDK. For more information about whitelisting a test device: https://support.appsflyer.com/hc/en-us/articles/207031996--Whitelisting-a-Test-Device AppsFlyer is the world's leading mobile attribution & marketing analytics platform, helping app marketers around the world make better decisions. Learn more at www.AppsFlyer.com

About

SecondLoop

Features
Read full description

Loop your focus, second by second. SecondLoop is a minimal interval timer that counts only in seconds — no minutes, ever. Set your phases (prepare → work → rest), build presets, and let the loop drive your rhythm. Features: - Seconds-only display for precise control - Auto-cycling through prepare / work / rest phases - Save up to 10 custom presets - Crystal-clear sound alerts via waveform synthesis - Dark & Light mode - Works offline with cloud sync Perfect for study sprints, cooking, presentation practice, meditation, breathing exercises, HIIT, and more. Simple as: how many seconds on, how many seconds off. That's it.

Screenshots

My Device ID by AppsFlyer1 screens
SecondLoop4 screens

Verdict

The call

The clearest difference is update cadence: My Device ID by AppsFlyer at every 10 days against SecondLoop's every 3 weeks. My Device ID by AppsFlyer also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.2). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

My Device ID by AppsFlyer ships an update every 10 days, SecondLoop every 3 weeks. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 7 level
My Device ID by AppsFlyer versus SecondLoop: the parameters behind the verdict, then further details
ParameterMy Device ID by AppsFlyerSecondLoop
PriceFreeFree
Rating3.8 (41 ratings) — better—
Positive reviews62.5% of reviews—
Number of ratings41 — better—
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better26.2
Further details — not scored
Size11 MB11 MB
Age rating4+4+
DeveloperAppsFlyerTetsuya Takaoka

In-app purchases

None

My Device ID by AppsFlyer

No in-app purchases

None

SecondLoop

No in-app purchases

Questions

Is My Device ID by AppsFlyer free?
My Device ID by AppsFlyer is free to download, with no in-app purchases.
Is SecondLoop free?
SecondLoop is free to download, with no in-app purchases.
Do My Device ID by AppsFlyer or SecondLoop have ads?
Neither My Device ID by AppsFlyer nor SecondLoop shows ads.
Which is updated more often, My Device ID by AppsFlyer or SecondLoop?
My Device ID by AppsFlyer ships an update every 10 days, and SecondLoop every 3 weeks. Most recently, My Device ID by AppsFlyer was updated on October 8, 2026 and SecondLoop on October 1, 2026.

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