Difference between iCloud and Wuala

1. iCloud :
iCloud is a cloud storage and cloud computing service provided by Apple Incorporation. It allows users to store data such as documents, photos and music on remote servers for download to iOS, macOS or Windows devices. It also enables to share and send data to other users. It is also helpful to manage the Apple devices if it is lost or stolen. It was launched in 2011.

2. Wuala :
Wuala was a file synchronization service, file storage service, file versioning service and backup storage service which was originally provided by Caleido Incorporation but was later owned by Seagate Technology. It was developed by Dominik Grolimund and Luzius Meisserin. It was majorly developed using Java. It offered 5 GB free storage space. It was launched in 2008.

Difference between iCloud and Wuala :

ICLOUD	WUALA
It is owned by Apple Incorporation.	Originally owned by Caleido Incorporation but was later owned by Seagate Technology.
It was launched in 2011.	It was launched in 2008.
It offers 5 GB free storage space.	It offered 5 GB free storage space but later on it was made only paid-service.
It was developed by Apple.	It was developed by Dominik Grolimund and Luzius Meisserin.
It does not provide additional free storage space for referral.	Initially it had referral system but later on referral service was suspended.
It has the maximum storage size of 2 TB.	Maximum storage size offered was 2 TB here also.
It partly supports file versioning.	It fully supported file versioning.
It does not provide ability to trade local disk storage space.	It provided ability to trade local disk storage space against cloud storage.
It is still in use.	This service was suspended in 2015.
It is mainly used by Apple product users.	It was designed for all types of users.