# IDFA Checker byNSDev vs oIDFA

IDFA Checker byNSDev and oIDFA are too close to call on the numbers: across 6 compared parameters — price, ads, in-app purchases and monetization model among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | IDFA Checker byNSDev | oIDFA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | — | Monthly |
| Monetization | Ad-supported | Ad-supported |
| Size | 3 MB | 23 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) | [Shion Washida](https://appshunter.io/developer/1584096952) |

## What reviewers say

### IDFA Checker byNSDev

[App page](https://appshunter.io/ios/app/idfa-checker-bynsdev/id6740688373)

Easily view and copy your device's Identifier for Advertisers (IDFA). This tool is useful for developers registering test devices for advertising platforms like AdMob.

**Highlights:** View IDFA, Copy IDFA to clipboard, Share IDFA, Test device registration aid, AdMob integration support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### oIDFA

[App page](https://appshunter.io/ios/app/oidfa-simple-idfa-copier/id6759527224)

This utility app quickly displays and copies your device's Identifier for Advertisers (IDFA). It also allows you to check your device's tracking status, showing the IDFA as all zeros if tracking is restricted.

**Highlights:** Instant IDFA display, One-tap copy to clipboard, Tracking status verification, Minimalist UI, Automatic IDFA fetching

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is IDFA Checker byNSDev free?

IDFA Checker byNSDev is free to download, with no in-app purchases.

### Is oIDFA free?

oIDFA is free to download, with no in-app purchases.

### Do IDFA Checker byNSDev or oIDFA have ads?

Both IDFA Checker byNSDev and oIDFA show ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*