# Contact Backup vs ASABlocker

The clearest difference is ads: Contact Backup at none against ASABlocker's shown. ASABlocker's advantage is update cadence (every 4 weeks vs every 40 months). On price, in-app purchases, device support and iOS requirement 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, ASABlocker every 4 weeks. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Contact Backup | ASABlocker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 40 months | **Every 4 weeks** |
| Size | 1 MB | 6 MB |
| Requires iOS | 16 | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Shanghai Dazhuo Information Technology Co., Ltd.](https://appshunter.io/developer/1470341377) | [Ahmed Salim](https://appshunter.io/developer/6782794001) |

## 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


### ASABlocker

[App page](https://appshunter.io/ios/app/asablocker/id6785703404)

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

**In-app purchases:** none


## Frequently asked questions

### Is Contact Backup free?

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

### Is ASABlocker free?

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

### Do Contact Backup or ASABlocker have ads?

ASABlocker shows ads; Contact Backup does not.

### Which is updated more often, Contact Backup or ASABlocker?

Contact Backup ships an update every 40 months, and ASABlocker every 4 weeks. Most recently, Contact Backup was updated on October 9, 2026 and ASABlocker on September 30, 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.*