# SOS Online Backup vs BigMIND Cloud Backup

The clearest difference is in-app purchases: SOS Online Backup at none against BigMIND Cloud Backup's 10. SOS Online Backup also leads on iOS requirement (12.3 vs 16.4). BigMIND Cloud Backup's advantage is update cadence (every 4 months vs every 8 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. BigMIND Cloud Backup sells 10 in-app purchases, starting at $0.99 per month. SOS Online Backup asks for nothing beyond the download.

SOS Online Backup ships an update every 8 months, BigMIND Cloud Backup every 4 months. The most recent releases landed on September 19, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | SOS Online Backup | BigMIND Cloud Backup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.2 (17 ratings)](https://appshunter.io/ios/app/bigmind-cloud-backup/id1141710813/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | **22.2% of reviews** | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 73 MB |
| Requires iOS | **12.3** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Infrascale, Inc.](https://appshunter.io/developer/328057516) | [Genie9 LTD](https://appshunter.io/developer/1018796121) |

## 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


### BigMIND Cloud Backup

[App page](https://appshunter.io/ios/app/bigmind-cloud-backup/id1141710813)

Securely back up and organize all your digital files with AI-powered search and cross-device syncing. Easily share content and access it from anywhere, ensuring your memories are always safe and accessible.

**Highlights:** AI-powered smart search, Facial and object recognition, Automatic file organization, Cross-device syncing, Easy sharing with permissions, Import from other cloud services

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 16GB Hot Storage Monthly | $0.99 | per month |
| 100GB Hot Storage Monthly | $1.99 | per month |
| 100GB Hot Storage Monthly | $2.99 | per month |
| 500GB Hot Storage Monthly | $6.99 | per month |
| 16GB Hot Storage Yearly | $9.99 | per year |
| 1TB Hot Storage Monthly | $12.99 | per month |
| 100GB Hot Storage Yearly | $29.99 | per year |
| 500GB Hot Storage Yearly | $69.99 | per year |
| 1TB Hot Storage Yearly | $99.99 | per year |
| 1TB Hot Storage Yearly | $129.99 | per year |


## Frequently asked questions

### Is SOS Online Backup free?

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

### Is BigMIND Cloud Backup free?

BigMIND Cloud Backup is free to download, with in-app purchases available.

### Do SOS Online Backup or BigMIND Cloud Backup have ads?

Neither SOS Online Backup nor BigMIND Cloud Backup shows ads.

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

SOS Online Backup ships an update every 8 months, and BigMIND Cloud Backup every 4 months. Most recently, SOS Online Backup was updated on September 19, 2026 and BigMIND Cloud Backup on September 23, 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.*