# IDFA確認 vs oIDFA

IDFA確認 and oIDFA are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.

IDFA確認 ships an update fortnightly, oIDFA monthly. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | IDFA確認 | oIDFA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | — | Ad-supported |
| Size | 22 MB | 23 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyuki Kajiki](https://appshunter.io/developer/1740302633) | [Shion Washida](https://appshunter.io/developer/1584096952) |

## What reviewers say

### IDFA確認

[App page](https://appshunter.io/ios/app/idfa/id6502272945)

**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確認 free?

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

### Is oIDFA free?

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

### Do IDFA確認 or oIDFA have ads?

Both IDFA確認 and oIDFA show ads.

### Which is updated more often, IDFA確認 or oIDFA?

IDFA確認 ships an update fortnightly, and oIDFA monthly. Most recently, IDFA確認 was updated on October 7, 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.*