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RosettaTest is a program to indicate whether an application in Mac OS X is running natively on a Mac powered by processors from Intel or is dynamically translated by Rosetta. If the program is translated, a small red indicator labelled 'R' is shown inside the application's icon.

What's New

Version 0.89a: Release notes were unavailable when this listing was updated.


Mac OS X 10.4.4 or later

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RosettaTest User Discussion

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robackja Member IconComment+149

How is this any different from using Activity Monitor and enabling the column "Kind" which indicates Intel or PowerPC?

Reply1 reply
Version 0.89
W. Lonsing (Developer)

The System-Profiler only shows, whether an application can be launched natively or as interpreted via Rosetta. On Intel machines running OSX you can choose, if you want to start an application natively or in "Rosetta-mode". This works for applications, whether they are running or not, if they are "Universal binaries". Not all are.
If an application is running, 'Activity Monitor' can look into the running application, and really "sees" the mode, as does RosettaTest.
The only significant difference is that the icon just pops into your eye, especially if your panel is floating, and you may avoid the overhead of 'Activity Monitor', watching disk usage, networking etc.
I used some applications with plugins and drivers. They were doing just fine, except the plugins. Sometimes even 'Safari" needed 'Rosetta-mode' in order to use additional functionality.

bedouin Member IconComment+95

Or alternatively, just open system profiler and "click applications." Sort by 'kind' if you wish.

Reply1 reply
Version 0.89
W. Lonsing (Developer)

... if you want that information only once. If you are tinkering and tweaking around, switch on and off the switch "Open using Rosetta" in the "Get Info"-panel, then RosettaTest might come in handy.

smpdigital Member IconReview+2

Does what it says, however it would be nice if it showed the apps running in the background

Reply2 replies
Version 0.79

Just use activity monitor, have it show kind in the list and it will tell you if a process in intel or PPC.

W. Lonsing (Developer)

If you need the information only once, then this advice is correct. If you want to check more often, while "Activity Monitor" just sits in the back, you have to grab the window and look for the correct line in order to get that information, besides the overload of informations, which comes not for free.
I love "Activity Monitor", but I am not running it all day long.

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> 5 1


Current Version (0.x)


Downloads 5,815
Version Downloads 380
Type Utilities / System
License Free
Date 10 Mar 2007
Platform OS X / PPC 32 / Intel 32
Price Free
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