Rainbow

Rainbow allows users to merge multiple cloud storage accounts into one, facilitating easier file management and transfers across platforms.

Last checked on August 8, 2026. We may earn a commission when you click through.

Rainbow is a practical solution for users looking to streamline their cloud storage experience, but it may not meet the needs of those with complex storage requirements.

✓ Combines multiple cloud accounts into one ✓ Supports syncing and backing up files ✓ Allows file sharing with a single link

Rainbow is a practical solution for users looking to streamline their cloud storage experience, but it may not meet the needs of those with complex storage requirements.

4.0

Price: Free
Downloads: N/A
Age: 4+
Category: productivity

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About this app

Rainbow allows users to merge multiple cloud storage accounts into one, facilitating easier file management and transfers across platforms.

Our Take

Pros

+ Combines multiple cloud accounts into one
+ Supports syncing and backing up files
+ Allows file sharing with a single link
+ User-friendly interface
+ Free to download with optional in-app purchases

Cons

− Limited features compared to standalone cloud services
− Only supports certain cloud providers
− Backup times may vary based on connection speed
− Not verified for macOS
− Occasional syncing issues reported

Best For

Ideal for casual users who need to manage files across various cloud accounts without complex requirements.

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Expert Review

Rainbow's SmartCloud service offers a unique approach by allowing users to combine the storage of multiple accounts into one. This feature is for those who regularly exceed their individual storage limits across services like Dropbox and Google Drive.

The app excels in file management, enabling users to sync folders between different accounts and easily back up files. However, its functionality is limited to specific cloud services, which may restrict users looking for a more comprehensive solution.

While the app is free to download, user reports indicate occasional syncing issues and limited support for macOS, which may be a drawback for some users. Overall, Rainbow is those who prioritize ease of use and consolidation over advanced features.