REALbasic Personal Edition

Runs on a single platform and creates applications for that platform. Allows you to test-drive Professional Edition features like cross-platform compilation; test-drive applications will run for five minutes.

REALbasic Professional Edition

Runs on a single platform and compiles applications cross-platform, for all three platforms, Windows, Macintosh and Linux.

REALbasic for Windows

IDE:

Minimum:
Windows 2000 or later (2000/XP/Vista)
1 GB RAM
1.0 GHz Processor

Recommended:
Windows 2000, Windows XP, Windows Vista
2 GB RAM
2.0 GHz Processor

Compiled Applications:

Windows 2000 or later (2000/XP/Vista)

REALbasic for Macintosh

IDE:

Minimum:
Mac OS X 10.3 or later
1 GB RAM
1.0 GHz G4

Recommended:
Mac OS X 10.4 or later
2 GB of available RAM
Any Intel Processor

Compiled Applications:

Intel or PowerPC Macintosh
Mac OS X 10.2 or later

REALbasic for Linux

IDE:

Minimum
x86-based Linux distributions with GTK+ 2.8 (or higher),
glibc-2.3 (or higher),
CUPS (Common UNIX Printing System) and
libstdc++.so.6
1 GB RAM
1.0 GHz Processor

Recommended:
x86-based Linux distributions with GTK+ 2.8 (or higher)
glibc-2.3 (or higher)
CUPS (Common UNIX Printing System)
libstdc++.so.6
2 GB RAM
2.0 GHz Processor

*Note: Only 32 bit distributions are supported at this time

Compiled Applications:

x86-based Linux distributions with GTK+ 2.8 (or higher)
glibc-2.3 (or higher)
CUPS (Common UNIX Printing System)
libstdc++.so.6

Officially Supported Distributions:

Ubuntu 6.06 or later
SUSE Linux Enterprise Desktop 10
Red Hat Enterprise Linux 5