# SOS Online Backup vs R2Drive

The clearest difference is update cadence: R2Drive at every 5 days against SOS Online Backup's every 8 months. SOS Online Backup's advantage is iOS requirement (12.3 vs 18.0). 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, R2Drive every 5 days. The most recent releases landed on October 6, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SOS Online Backup | R2Drive |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 10 MB | 3 MB |
| Requires iOS | **12.3** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Infrascale, Inc.](https://appshunter.io/developer/328057516) | [Foxode LLC](https://appshunter.io/developer/1896404870) |

## 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


### R2Drive

[App page](https://appshunter.io/ios/app/r2drive/id6767158053)

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

**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 R2Drive free?

R2Drive is free to download, with no in-app purchases.

### Do SOS Online Backup or R2Drive have ads?

Neither SOS Online Backup nor R2Drive shows ads.

### Which is updated more often, SOS Online Backup or R2Drive?

SOS Online Backup ships an update every 8 months, and R2Drive every 5 days. Most recently, SOS Online Backup was updated on October 6, 2026 and R2Drive on October 28, 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.*