Download of Spyder2express 2.3 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free software for Mac is Datacolor. We recommend checking the downloaded files with any free antivirus. The program lies within System Tools, more precisely System Optimization.
From the developer:
Spyder2express - Target White Point is 6500K instead of Native.
Spyder2Express is is PowerPC-only, therefore Rosetta is required to run it. Rosetta is an optional install on 10.6 (SnowLeopard). This is not an issue for 10.4 (Tiger) and 10.5 (Leopard) systems where Rosetta is automatically installed.
You may want to check out more Mac applications, such as Jitouch, AntiRSI or PresButan, which might be related to Spyder2express.
System Optimization