1. 盒子：
Box 是 Box Incorporation 提供的云存储和文件托管服务。它是由Aaron Levie和Dylan Smith 开发的。它基本上是面向企业的云内容管理和文件共享服务。它提供 10 GB 的存储空间。它由 Box Incorporation 于 2005 年推出，适用于 Windows、macOS 等平台。
2.乌拉：
Wuala 是一种文件同步服务、文件存储服务、文件版本控制服务和备份存储服务，最初由 Caleido Incorporation 提供，但后来归希捷科技所有。它是由Dominik Grolimund和Luzius Meisserin 开发的。它主要是使用Java开发的。它提供了 5 GB 的免费存储空间。它于2008年推出。
Box 和 Wuala 的区别：
| BOX | WUALA |
|---|---|
| It is owned by Box Incorporation. | Originally owned by Caleido Incorporation but was later owned by Seagate Technology. |
| It was launched in 2005. | It was launched in 2008. |
| It offers 10 GB free storage space. | It offered 5 GB free storage space but later on it was made only paid-service. |
| It was developed by Aaron Levie and Dylan Smith. | It was developed by Dominik Grolimund and Luzius Meisserin. |
| It does not have referral system for gaining additional free storage space. | Initially it had referral system but later on referral service was suspended. |
| It has the maximum storage size of 100 GB for personal accounts and unlimited for business accounts. | Maximum storage size offered was 2 TB here. |
| It supports file versioning in premium accounts only. | 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. |