# Contact Backup vs SMARTKIT KEY

The clearest difference is update cadence: SMARTKIT KEY at every 2 weeks against Contact Backup's every 40 months. SMARTKIT KEY also leads on iOS requirement (10.0 vs 16). 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.

Contact Backup ships an update every 40 months, SMARTKIT KEY every 2 weeks. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Contact Backup | SMARTKIT KEY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/smartkit-key/id1501350238/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 1 MB | 5 MB |
| Requires iOS | 16 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Dazhuo Information Technology Co., Ltd.](https://appshunter.io/developer/1470341377) | [胜 邓](https://appshunter.io/developer/1368398791) |

## What reviewers say

### Contact Backup

[App page](https://appshunter.io/ios/app/contact-backupimport-and-export/id1492958197)

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

**In-app purchases:** none


### SMARTKIT KEY

[App page](https://appshunter.io/ios/app/smartkit-key/id1501350238)

This application transforms your smartphone into a remote control transmitter. It enables you to unlock, lock, locate your vehicle, and open the trunk. Download it to conveniently manage your car's functions.

**Highlights:** Unlock car, Lock car, Locate vehicle, Open trunk, Smartphone remote transmitter

**In-app purchases:** none


## Frequently asked questions

### Is Contact Backup free?

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

### Is SMARTKIT KEY free?

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

### Do Contact Backup or SMARTKIT KEY have ads?

Neither Contact Backup nor SMARTKIT KEY shows ads.

### Which is updated more often, Contact Backup or SMARTKIT KEY?

Contact Backup ships an update every 40 months, and SMARTKIT KEY every 2 weeks. Most recently, Contact Backup was updated on October 9, 2026 and SMARTKIT KEY on October 4, 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.*