# Tenjin Device ID vs MicroID BLUE Button

Tenjin Device ID and MicroID BLUE Button are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.

## The numbers

| Metric | Tenjin Device ID | MicroID BLUE Button |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 4 MB | 38 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Tenjin, Inc.](https://appshunter.io/developer/1462411989) | [Darmandran Sivapathasundram](https://appshunter.io/developer/1756902003) |

## What reviewers say

### Tenjin Device ID

[App page](https://appshunter.io/ios/app/tenjin-device-id/id6511195528)

**In-app purchases:** none


### MicroID BLUE Button

[App page](https://appshunter.io/ios/app/microid-blue-button/id6572288526)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tenjin Device ID free?

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

### Is MicroID BLUE Button free?

MicroID BLUE Button is free to download, with no in-app purchases.

### Do Tenjin Device ID or MicroID BLUE Button have ads?

Neither Tenjin Device ID nor MicroID BLUE Button shows ads.

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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.*