# FBID vs UnitTrace

The clearest difference is in-app purchases: FBID at none against UnitTrace's 1. UnitTrace's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. UnitTrace sells 1 one-off in-app purchase. FBID asks for nothing beyond the download.

## The numbers

| Metric | FBID | UnitTrace |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 19 MB | 60 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Shengrui Trading Co., Ltd.](https://appshunter.io/developer/1719818925) | [QINGDAO XUFAN ZHILIAN INFORMATION TECHNOLOGY CO. LTD.](https://appshunter.io/developer/1888657658) |

## What reviewers say

### FBID

[App page](https://appshunter.io/ios/app/fbid/id6479281009)

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

**In-app purchases:** none


### UnitTrace

[App page](https://appshunter.io/ios/app/unittrace/id6772764448)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnitTrace Pro | $24.99 | one-time |


## Frequently asked questions

### Is FBID free?

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

### Is UnitTrace free?

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

### Do FBID or UnitTrace have ads?

Neither FBID nor UnitTrace 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.*