# Phone Tester vs IDFA Viewer

The clearest difference is in-app purchases: IDFA Viewer at none against Phone Tester's 4. IDFA Viewer also leads on ads (none vs shown). Phone Tester's advantage is update cadence (every 3 weeks vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Phone Tester sells 4 in-app purchases, starting at $0.99 per 7 days. IDFA Viewer asks for nothing beyond the download.

Phone Tester ships an update every 3 weeks, IDFA Viewer every 9 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | Phone Tester | IDFA Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 9 months |
| Size | 12 MB | 5 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grima Hdez](https://appshunter.io/developer/1741481582) | [翠芬 梁](https://appshunter.io/developer/1792659056) |

## What reviewers say

### Phone Tester

[App page](https://appshunter.io/ios/app/phone-tester-dead-pixel-test/id6742501337)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Device Monitor Pro Weekly | $0.99 | per 7 days |
| Device Monitor Pro Monthly | $1.99 | per month |
| Device Monitor Pro Yearly | $2.99 | per year |
| Device Monitor Pro Lifetime | $3.99 | one-time |


### 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 Phone Tester free?

Phone Tester is free to download, with in-app purchases available.

### Is IDFA Viewer free?

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

### Do Phone Tester or IDFA Viewer have ads?

Phone Tester shows ads; IDFA Viewer does not.

### Which is updated more often, Phone Tester or IDFA Viewer?

Phone Tester ships an update every 3 weeks, and IDFA Viewer every 9 months. Most recently, Phone Tester was updated on October 28, 2026 and IDFA Viewer on October 28, 2026.

---

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