# IDFA & Device Info Viewer vs DeviceId2

The clearest difference is ads: DeviceId2 at none against IDFA & Device Info Viewer's shown. DeviceId2 also leads on update cadence (every 3 days vs every 3 weeks) and monetization model (free vs ad-supported). On price, rating, ratings volume and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for IDFA & Device Info Viewer against 5.0 for DeviceId2. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

IDFA & Device Info Viewer ships an update every 3 weeks, DeviceId2 every 3 days. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | IDFA & Device Info Viewer | DeviceId2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/idfa-and-device-info-viewer/id6745802620/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/deviceid2/id6751767400/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Ad-supported | **Free** |
| Size | 17 MB | 25 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rodrigo Belloso](https://appshunter.io/developer/1361382340) | [康康 王](https://appshunter.io/developer/1797894325) |

## What reviewers say

### IDFA & Device Info Viewer

[App page](https://appshunter.io/ios/app/idfa-and-device-info-viewer/id6745802620)

Access your device's advertising ID (IDFA) and detailed technical specifications. View, copy, and share system information like model, OS, and storage. Designed for developers and curious users, it offers advanced insights through rewarded videos.

**Highlights:** View and copy IDFA, Access system details (model, OS, resolution, battery), Unlock extended info (IDFV, region, time zone, storage, memory, CPU), Export or share data, No logins or clutter, Advanced insights via rewarded video

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

**In-app purchases:** none


### DeviceId2

[App page](https://appshunter.io/ios/app/deviceid2/id6751767400)

This utility app provides users with their device's unique identifier. It emphasizes privacy and an ad-free experience for all users. Access your device ID easily and securely.

**Highlights:** Get device ID, Private access, No advertisements, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IDFA & Device Info Viewer free?

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

### Is DeviceId2 free?

DeviceId2 is free to download, with no in-app purchases.

### Which has better reviews, IDFA & Device Info Viewer or DeviceId2?

IDFA & Device Info Viewer and DeviceId2 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do IDFA & Device Info Viewer or DeviceId2 have ads?

IDFA & Device Info Viewer shows ads; DeviceId2 does not.

### Which is updated more often, IDFA & Device Info Viewer or DeviceId2?

IDFA & Device Info Viewer ships an update every 3 weeks, and DeviceId2 every 3 days. Most recently, IDFA & Device Info Viewer was updated on October 1, 2026 and DeviceId2 on October 11, 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.*