# SOS Online Backup vs BxPMaster

The clearest difference is update cadence: BxPMaster at monthly against SOS Online Backup's every 8 months. 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.

SOS Online Backup ships an update every 8 months, BxPMaster monthly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SOS Online Backup | BxPMaster |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Free | — |
| Size | 10 MB | 52 MB |
| Requires iOS | 12.3 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Infrascale, Inc.](https://appshunter.io/developer/328057516) | [Hangzhou Sciener Smart Technology](https://appshunter.io/developer/1360996795) |

## What reviewers say

### SOS Online Backup

[App page](https://appshunter.io/ios/app/sos-online-backup/id328057513)

Securely back up and restore data from your mobile devices, laptops, and remote offices to the cloud. Protect your information against accidental deletion, device loss, or cyberattacks. Access and manage your backed-up files from any device.

**Highlights:** Direct-to-cloud backup, Data recovery, Cross-device access, Protection against data loss, Mobile, laptop, and office support

**Features:** macOS Compatibility

**In-app purchases:** none


### BxPMaster

[App page](https://appshunter.io/ios/app/bxpmaster/id6478904961)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SOS Online Backup free?

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

### Is BxPMaster free?

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

### Do SOS Online Backup or BxPMaster have ads?

Neither SOS Online Backup nor BxPMaster shows ads.

### Which is updated more often, SOS Online Backup or BxPMaster?

SOS Online Backup ships an update every 8 months, and BxPMaster monthly. Most recently, SOS Online Backup was updated on October 6, 2026 and BxPMaster on October 16, 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.*