Download the latest R: Latest R Version.
Download R Studio Desktop Graphical User Interface: R Studio Desktop .
Download both R and RStudio, R first then R Studio.
If unsure between R for Apple silicon and Intel, go to the upper left corner of your computer, click on the Apple logo, then click About This Mac.
A small screen will pop up that looks like below. If your chip is Apple M1 or Apple M2, use the download link for Apple silicon. If it is any version of Intel, use the link for Intel Processor.
For Apple silicon (M1/M2/M3) Macs: Latest R Version.
For Mac with Intel Processor: Latest R Version.
Download R Studio for macOS 11+ R Studio Desktop for macOS 12+