# Contacts Sync, Backup & Clean vs DNI Digital

The clearest difference is price: Contacts Sync, Backup & Clean at Free against DNI Digital's $3.99. Contacts Sync, Backup & Clean also leads on update cadence (every 10 days vs every 6 weeks) and ratings volume (77 vs 4). DNI Digital's advantage is rating (5.0 vs 3.6) and in-app purchases (none vs 3). On device support there is nothing between them.

Contacts Sync, Backup & Clean is free to download; DNI Digital costs $3.99 up front. Contacts Sync, Backup & Clean sells 3 one-off in-app purchases. DNI Digital asks for nothing beyond the download.

DNI Digital holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Contacts Sync, Backup & Clean has 77 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 45% of Contacts Sync, Backup & Clean's written reviews are positive against 80% of DNI Digital's.

Contacts Sync, Backup & Clean ships an update every 10 days, DNI Digital every 6 weeks. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Contacts Sync, Backup & Clean | DNI Digital |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [3.6 (77 ratings)](https://appshunter.io/ios/app/contacts-sync-backup-and-clean/id624985840/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/dni-digital/id1661421041/reviews)** |
| Number of ratings | **77** | 4 |
| Positive reviews | 45.4% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 25 MB | 26 MB |
| Requires iOS | 17.6 | **14.7** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [峥 俞](https://appshunter.io/developer/1500529302) | [DNIWallet, SL.](https://appshunter.io/developer/467270698) |

## 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 |


### DNI Digital

[App page](https://appshunter.io/ios/app/dni-digital/id1661421041)

Easily use your DNI and NIE on your iPhone for identification and access to government services. This app simplifies digital identity management for official purposes.

**Highlights:** Use DNI on iPhone, Use NIE on iPhone, Digital identification, Access administration services

**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 DNI Digital free?

DNI Digital costs $3.99, with no in-app purchases.

### Which has better reviews, Contacts Sync, Backup & Clean or DNI Digital?

DNI Digital is rated higher. Contacts Sync, Backup & Clean averages 3.6 out of 5 from 77 ratings, while DNI Digital averages 5.0 from 4 ratings.

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

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

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

Contacts Sync, Backup & Clean ships an update every 10 days, and DNI Digital every 6 weeks. Most recently, Contacts Sync, Backup & Clean was updated on October 23, 2026 and DNI Digital on October 22, 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.*