Simply put, here are the current Office 365 offerings, all of which can be found on the Office 365 website here:
- Office 365 Home Premium (US$ 99.99 per user per year)
Designed for home use, and includes: - Microsoft Office 2013 to be installed on up to 5 PCs or Macs (Word, Excel, PowerPoint, Outlook, OneNote, Publisher, and Access)
- Office On-Demand and Office WebApps
- +20 GB online storage with SkyDrive
- 60 Skype world minutes per month (available in select countries)
- Office 365 Small Business Premium (US$ 150 per user per year)
Designed for small companies with up to 10 users, and includes: - Exchange Online with 25GB mailbox
- SharePoint Online with a public website and internal team sites
- Lync Online with web conferencing and instant messaging
- Microsoft Office 2013 to be installed on up to 5 PCs or Macs (Word, Excel, PowerPoint, Outlook, OneNote, Publisher, Lync, and Access)
- Office On-Demand and Office WebApps
- Simple IT Controls
- Office 365 Midsize (US$ 180 per user per year)
Designed for midsize businesses with between 11 and 250 users, and includes: - Exchange Online with 25GB mailbox
- SharePoint Online with a public website and internal team sites
- Lync Online with web conferencing and instant messaging
- Microsoft Office 2013 to be installed on up to 5 PCs or Macs (Word, Excel, PowerPoint, Outlook, OneNote, Publisher, Lync, InfoPath, and Access)
- Office On-Demand and Office WebApps
- Enhanced IT Controls
- Office 365 E1 Plan (US$ 8 per user per month)
Designed for enterprises with over 250 users, and includes: - Exchange Online with 25GB mailbox
- SharePoint Online with a public website and internal team sites
- Lync Online with web conferencing and instant messaging
- Office On-Demand and Office WebApps
- File storage and sharing with SkyDrive Pro
- Advanced IT Controls
- Office 365 E3 Plan (US$ 20 per user per month)
Designed for enterprises with over 250 users, and includes: - Exchange Online with 25GB mailbox
- SharePoint Online with a public website and internal team sites
- Lync Online with web conferencing and instant messaging
- Microsoft Office 2013 to be installed on up to 5 PCs or Macs (Word, Excel, PowerPoint, Outlook, OneNote, Publisher, Lync, InfoPath, and Access)
- Office On-Demand and Office WebApps
- File storage and sharing with SkyDrive Pro
- Advanced IT Controls
- Exchange Online: US$ 4 (or US$ 8 for added features) per user per month
- SharePoint Online: US$ 3 (or US$ 7 for added features) per user per month
- Lync Online: US$ 2 (or US$ 5.50 for added features) per user per month
- Project Online: US$ 33 per user per month (paid annually in advance)
In conclusion, it is important to say that Office 365 is not a 'one-size-fits-all' type of product. Companies should decide based on their requirements with consideration for future expansion.