# iLock Blue vs Contacts 4.0

The clearest difference is ads: iLock Blue at none against Contacts 4.0's shown. Contacts 4.0's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price 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.

## The numbers

| Metric | iLock Blue | Contacts 4.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (3 ratings)](https://appshunter.io/ios/app/contacts-40/id1661590036/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | — |
| Monetization | — | Ad-supported |
| Size | 166 MB | 7 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [THE EASTERN COMPANY](https://appshunter.io/developer/1406820064) | [Khang Le](https://appshunter.io/developer/1586441429) |

## What reviewers say

### iLock Blue

[App page](https://appshunter.io/ios/app/ilock-blue/id1498840410)

**In-app purchases:** none


### Contacts 4.0

[App page](https://appshunter.io/ios/app/contacts-40/id1661590036)

Easily back up and restore all your contacts with a single touch. Share contacts via QR code or email, and find and remove duplicate entries. This utility works completely offline.

**Highlights:** Offline backup and restore, Single-touch backup, Email vCard attachment, QR code contact sharing, Find and remove duplicates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iLock Blue free?

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

### Is Contacts 4.0 free?

Contacts 4.0 is free to download, with no in-app purchases.

### Do iLock Blue or Contacts 4.0 have ads?

Contacts 4.0 shows ads; iLock Blue does not.

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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.*