# Write ID vs DeviceId2

The clearest difference is update cadence: DeviceId2 at every 3 days against Write ID's every 6 weeks. Write ID's advantage is iOS requirement (9.0 vs 15.1). 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.

Write ID ships an update every 6 weeks, DeviceId2 every 3 days. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Write ID | DeviceId2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/deviceid2/id6751767400/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 1 MB | 25 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Shenzhen Chileaf Eletronics Co., LTD](https://appshunter.io/developer/1460339012) | [康康 王](https://appshunter.io/developer/1797894325) |

## What reviewers say

### Write ID

[App page](https://appshunter.io/ios/app/write-id/id1494859636)

**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 Write ID free?

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

### Is DeviceId2 free?

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

### Do Write ID or DeviceId2 have ads?

Neither Write ID nor DeviceId2 shows ads.

### Which is updated more often, Write ID or DeviceId2?

Write ID ships an update every 6 weeks, and DeviceId2 every 3 days. Most recently, Write ID was updated on September 11, 2026 and DeviceId2 on September 8, 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.*