My Device ID by AppsFlyer vs NowSignal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- View Device ID (IDFA, IDFV)
- Share Device ID
- Whitelist test device for AppsFlyer
- Directly add device to AppsFlyer account
- Facilitates SDK integration testing
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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
NowSignal
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When you have a minute and want to know what people in South Korea are searching for, open NowSignal. NowSignal lists up to 10 topics from the South Korea Google Trends RSS feed in the feed's published order. Each row shows Google's approximate traffic range, the feed update time, and how many related news sources are linked. Tap a topic to open its Google results in the in-app browser. If a refresh fails, the last healthy list and its timestamp stay visible. NowSignal does not calculate its own ranking or exact search volume, and it does not provide ranking history, article text, or AI summaries.
Screenshots
Verdict
The clearest difference is ads: My Device ID by AppsFlyer at none against NowSignal's shown. On price, update cadence, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
My Device ID by AppsFlyer ships an update every 8 days, NowSignal weekly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | My Device ID by AppsFlyer | NowSignal |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (41 ratings) — better | — |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 41 — better | — |
| Update frequency | Every 8 days | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 11 MB | 26 MB |
| Age rating | 4+ | 17+ |
| Developer | AppsFlyer | Peach (KR) |
In-app purchases
My Device ID by AppsFlyer
No in-app purchases
NowSignal
No in-app purchases
Questions
Is My Device ID by AppsFlyer free?
Is NowSignal free?
Do My Device ID by AppsFlyer or NowSignal have ads?
Which is updated more often, My Device ID by AppsFlyer or NowSignal?
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