Below is a comparison of specific Gmail features and capabilities that are available with each edition of Google Apps:

• Google Apps (free edition): A free offering for small organizations.

• Google Apps for Business: Business-grade services for companies needing enhanced storage, security, administrative control, and integration capabilities. Upgrade now
• Google Apps for Education: Free business-grade services for qualifying educational institutions and non-profit organizations. Do we qualify?
• Non-profits: Google Apps for Education is available free for qualifying non-profit organizations through the Google for Nonprofits program (U.S. organizations, only). Learn more.
• U.S. government customers: Google Apps for Government is certified and accredited under the Federal Information Security Management Act (FISMA), which sets security standards for software applications in use by the United States federal government. It provides similar features and capabilities to Google Apps for Business. Learn more.

Usage and Support

Compare Google Apps (free edition) with Google Apps for Business and Google Apps for Education.

General	Free	Business	Education
99.9% uptime guarantee SLA
Maximum users per domain	10	Unlimited	Unlimited
Your custom email addresses				Eg, user@yourdomain.com
Message allowances
Email/IM storage per user	15 GB	30 GB	30 GB	Gmail storage shared with Google Drive and Picasa Web Albums. Learn more
Attachment size limit	25 MB	25 MB	25 MB
Maximum recipients per message	500	500	500
Maximum recipients/day per user (outside your domain)	500	3,000	3,000
Support
Online self help
Priority email support (via link in Admin console)
24/7 phone support for "service unavailable" emergencies

Security and Business Controls

Security	Google Apps	Google Apps for Business	Google Apps for Education
SSL enforcement				Learn more
Single Sign On (SSO)				Learn more
Custom password strength requirements				Learn more
Custom password length requirements				Learn more
Filtering & compliance
Junk email filtering and virus blocking
Custom filtering and content policies, and encryption
Archiving, search, and discovery				Google Message Discovery (Postini) Paid add-on, only
Email retention policies				Learn more
IP address whitelisting				Learn more
User-managed blacklists				Learn more

Features and Branding

Customization	Google Apps	Google Apps for Business	Google Apps for Education
Removal of Gmail ads
Logo and colors branding
Custom URL				Eg, http://mail.yourdomain.com
Admin configured compliance footers
Email Themes (defined by user)
Mailing lists & aliases
Mailing lists				Managed by administrators in Google Admin console as groups. Learn more
User-managed forums and mailing lists				Managed by users in Google Apps as groups; administrator can disable. Learn more
Domain aliases (associated with your primary domain)				Eg, user@corp.yourdomain.com. Learn more
User aliases				Called nicknames in Google Apps
Feature management
Gmail Labs				Learn more
Option to disable Labs for domain
Option to disable Offline access for domain				Learn more
Option to disable pre-release features for domain

Migration and Integration

User provisioning & contact sharing	Google Apps	Google Apps for Business	Google Apps for Education
Automated provisioning from LDAP systems				Google Apps Directory Sync
User and group provisioning API
Shared domain contacts (global addresses)
Shared external contacts				Shared Contacts API
Mail migration (administrator managed)
Domain-wide migration using Email migration API
Lotus Notes migration (mail, contacts, calendar)				Google Apps Migration for Lotus Notes
Google Apps Migration for Microsoft Exchange				Supports Microsoft® Exchange 2003/2007/2010 or an IMAP server (Novell® GroupWise®, Cyrus, Dovecot, Courier or Gmail), PST files, and Google Apps accounts. Learn more
Mail migration (user managed)
Outlook 2003, 2007, 2010 (mail, contacts, calendar)				Google Apps Migration for Microsoft Outlook® (if you're not using Outlook)
Outlook 2003, 2007, 2010 (mail, contacts, calendar)				Google Apps Sync for Microsoft Outlook® (if you'll continue using Outlook)
Other POP accounts				Mail Fetcher

Access and Delivery

Mobile	Google Apps	Google Apps for Business	Google Apps for Education
Remote BlackBerry device management				Google Apps Connector for BlackBerry Enterprise Server (requires BlackBerry Enterprise Server)
Native iPhone, iPad, and Windows Phone				Google Sync via ActiveSync
Remote iPhone, iPad, and Windows Phone device management				Google Apps Mobile Management
Android				Learn more
Remote Android device management				Learn more about Google Apps Device Policy and Google Apps Mobile Management
Other access options
Mail delegation				Learn more
Offline access				Learn more
Voice and video chat				Learn more
Outlook 2003, 2007, and 2010				Google Apps Sync for Microsoft Outlook®
IMAP / POP client
Administrative ability to disable IMAP / POP access
Email delivery options
Catchall address				Learn more
Email routing (user- and domain-level)				Learn more
Inbound gateway				Learn more
Outbound gateway (for entire domain)				Learn more
Outbound relay server (for alternative From: addresses)				Learn more
Receiving mail from multiple POP addresses				Mail Fetcher (user tool)