Difference between Dropbox and Wuala

1. Dropbox:
Dropbox is a file hosting service provided by the American company Dropbox Incorporation. It offers cloud storage, file synchronization, personal cloud and client software. It was founded in 2007. Dropbox was developed by two MIT students Drew Houston and Arash Ferdowsi. It offers only 2 GB free storage space. Maximum file size is 100 MB for free, 2 GB for paid Plus plan 100 GB for paid Professional plan. It is one of the earliest cloud storage services. 

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 Dropbox and Wuala :

DROPBOX	WUALA
It is owned by Dropbox Incorporation.	Originally owned by Caleido Incorporation but was later owned by Seagate Technology.
It was launched in 2007.	It was launched in 2008.
It offers 2 GB free storage space.	It offered 5 GB free storage space but later on it was made only paid-service.
It was developed by Drew Houston and Arash Ferdowsi.	It was developed by Dominik Grolimund and Luzius Meisserin.
It provides additional 500 MB free storage space for referral up to 16 GB.	Initially it had referral system but later on referral service was suspended.
Maximum storage size is 5 TB here.	Maximum storage size offered was 2 TB here.
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 uses block-syncing to update changes quickly.	It did not use block-syncing to update changes quickly.
It shares files through web applications.	While it used to share files through links.