# Device ID Check Tool vs oIDFA

The clearest difference is update cadence: Device ID Check Tool at weekly against oIDFA's monthly. oIDFA's advantage is iOS requirement (15.1 vs 18.2). On price, ads, in-app purchases and device support there is nothing between them.

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

Device ID Check Tool ships an update weekly, oIDFA monthly. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Device ID Check Tool | oIDFA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Monthly |
| Monetization | — | Ad-supported |
| Size | 4 MB | 23 MB |
| Requires iOS | 18.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mizuki Hoshida](https://appshunter.io/developer/1797942917) | [Shion Washida](https://appshunter.io/developer/1584096952) |

## What reviewers say

### Device ID Check Tool

[App page](https://appshunter.io/ios/app/device-id-check-tool/id6742742567)

**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 Device ID Check Tool free?

Device ID Check Tool is free to download, with no in-app purchases.

### Is oIDFA free?

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

### Do Device ID Check Tool or oIDFA have ads?

Both Device ID Check Tool and oIDFA show ads.

### Which is updated more often, Device ID Check Tool or oIDFA?

Device ID Check Tool ships an update weekly, and oIDFA monthly. Most recently, Device ID Check Tool was updated on October 16, 2026 and oIDFA on October 9, 2026.

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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.*