# Contacts Sync, Backup & Clean vs gluble

The clearest difference is in-app purchases: gluble at none against Contacts Sync, Backup & Clean's 3. gluble also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Contacts Sync, Backup & Clean sells 3 one-off in-app purchases. gluble asks for nothing beyond the download.

Contacts Sync, Backup & Clean ships an update every 10 days, gluble weekly. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Contacts Sync, Backup & Clean | gluble |
| --- | --- | --- |
| Price | Free | Free |
| 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 | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 54 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [峥 俞](https://appshunter.io/developer/1500529302) | [Pedro Luis Garcia Alonso](https://appshunter.io/developer/1890502527) |

## 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 |


### gluble

[App page](https://appshunter.io/ios/app/gluble/id6765694334)

**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 gluble free?

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

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

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

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

Contacts Sync, Backup & Clean ships an update every 10 days, and gluble weekly. Most recently, Contacts Sync, Backup & Clean was updated on October 20, 2026 and gluble on October 17, 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.*