# Contacts Sync, Backup & Clean vs GBKey

The clearest difference is review sentiment: Contacts Sync, Backup & Clean at 45% against GBKey's 0%. Contacts Sync, Backup & Clean also leads on price (Free vs $0.99) and update cadence (every 10 days vs every 5 weeks). GBKey's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Contacts Sync, Backup & Clean is free to download; GBKey costs $0.99 up front. Contacts Sync, Backup & Clean sells 3 one-off in-app purchases. GBKey asks for nothing beyond the download.

Contacts Sync, Backup & Clean ships an update every 10 days, GBKey every 5 weeks. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Contacts Sync, Backup & Clean | GBKey |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.6 (77 ratings)](https://appshunter.io/ios/app/contacts-sync-backup-and-clean/id624985840/reviews)** | — |
| Number of ratings | **77** | — |
| Positive reviews | **45.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 25 MB | 8 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [峥 俞](https://appshunter.io/developer/1500529302) | [TAE CHEOL CHEON](https://appshunter.io/developer/1001401881) |

## What reviewers say

### Contacts Sync, Backup & Clean

[App page](https://appshunter.io/ios/app/contacts-sync-backup-and-clean/id624985840)

Effortlessly sync, back up, and clean your iPhone contacts with cloud services like Google, Outlook, and Yahoo. Easily export contacts to Excel or vCard, and import them back into your address book. The app intelligently merges duplicates to maintain a tidy contact list.

**Highlights:** Two-way sync with Google, Outlook, Yahoo, Backup contacts to Excel or vCard, Import contacts from Excel or vCard, Sync contacts between multiple devices/platforms, Intelligent duplicate contact merging, Clean and intuitive interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Merge Duplicate Contacts | $2.99 | one-time |
| Backup Contacts Pro | $2.99 | one-time |
| Google Contacts Sync Pro Edition | $3.99 | one-time |


### GBKey

[App page](https://appshunter.io/ios/app/gbkey/id1010955281)

This keyboard app uses intuitive gestures like tapping and dragging to input characters, switch between keyboard layouts (alphabet, number, symbol, shortcut), and perform actions like spacing and deletion. It offers a streamlined typing experience with customizable layouts.

**Highlights:** Gesture-based character input, Tab or drag gesture input, Tap to change keyboard layout, Drag right for number/symbol keyboard, Drag left for shortcut keyboard, Button tap for space and delete

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

**In-app purchases:** none


## Frequently asked questions

### Is Contacts Sync, Backup & Clean free?

Contacts Sync, Backup & Clean is free to download, with in-app purchases available.

### Is GBKey free?

GBKey costs $0.99, with no in-app purchases.

### Do Contacts Sync, Backup & Clean or GBKey have ads?

Contacts Sync, Backup & Clean shows ads; GBKey does not.

### Which is updated more often, Contacts Sync, Backup & Clean or GBKey?

Contacts Sync, Backup & Clean ships an update every 10 days, and GBKey every 5 weeks. Most recently, Contacts Sync, Backup & Clean was updated on October 7, 2026 and GBKey on October 13, 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.*