Difference between Amazon S3 and Ubuntu One

1. Amazon S3 :
Amazon S3 stands for Amazon Simple Storage Service. It is a cloud storage service which is provided by Amazon Web Services. It provides object storage through a web service interface. It allows to store any type of objects like data lakes for analytics, data archives, backup and recovery, disaster recovery, hybrid cloud storage and internet applications. It was launched by AWS in 2006.

2. Ubuntu One :
Ubuntu One was a file hosting service, file synchronization service and cloud service which was provided by Canonical Limited. It was an OpenID based single sign-on service. It provided services for storing files on cloud and also streaming of music from cloud. It was developed by Canonical Ltd. It was suitable for Windows, OS X, iOS, Ubuntu and Android. It offered 5 GB free storage space. It was launched in 2009.

Difference between Amazon S3 and Ubuntu One :

AMAZON S3	UBUNTU ONE
It is owned by Amazon.	It was owned by Canonical Limited.
It was launched in 2006.	It was launched in 2009.
It does not free storage space.	It offered 5 GB free storage space.
It was developed by Amazon Web Services (AWS).	It was developed by Canonical Ltd.
It has the unlimited maximum storage size.	Maximum storage size was unlimited here also.
Developer API is REST and SOAP.	It supports developer API.
It is still in use.	This service was suspended in 2014.
Files stored here are encrypted.	Files stored in Ubuntu One were not encrypted.
Maximum file size is 5 GB per file and unlimited files per bucket.	Maximum file size was 5 GB per file.
It is a file hosting and cloud storage service.	It was a commercial file synchronization service.
It requires credit-card details for free trial.	It did not require credit-card details for free services.