# Device ID Check Tool vs IDFA Viewer

The clearest difference is ads: IDFA Viewer at none against Device ID Check Tool's shown. IDFA Viewer also leads on iOS requirement (15.6 vs 18.2). Device ID Check Tool's advantage is update cadence (weekly vs every 9 months). On price, 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, IDFA Viewer every 9 months. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Device ID Check Tool | IDFA Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 9 months |
| Size | 4 MB | 5 MB |
| Requires iOS | 18.2 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mizuki Hoshida](https://appshunter.io/developer/1797942917) | [翠芬 梁](https://appshunter.io/developer/1792659056) |

## 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


### IDFA Viewer

[App page](https://appshunter.io/ios/app/idfa-viewer-device-info-viewer/id6748586602)

**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 IDFA Viewer free?

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

### Do Device ID Check Tool or IDFA Viewer have ads?

Device ID Check Tool shows ads; IDFA Viewer does not.

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

Device ID Check Tool ships an update weekly, and IDFA Viewer every 9 months. Most recently, Device ID Check Tool was updated on September 18, 2026 and IDFA Viewer on September 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.*