Installation of the ready-to-run Gramps application for [https://en.wikipedia.org/wiki/MacOS macOS] (originally Mac OS X, previously shortened as OS X). This is also known as the GTK-OSX port of Gramps for Mac. It is a single, stand-alone bundle which uses the native quartz windowing system of Mac OS X macOS instead of X11.

{{man tip|Apple '''MacOS macOS versions''' |*Gramps 5.0 requires Mac OS X 10.9 (Mavericks) and later. *Gramps 5.1 requires at least Mac OS X 10.10 (Yosemite)and later.*Gramps 6.0 requires macOS 11.0 (Big Sur) and later.<br>(5-year support window for the macOS dependencies)}}

;'''Back up your databases:''': If you're using Time Machine, that's already taken care of. (You do test your Time Machine backups periodically, right?) But it doesn't hurt to have a spare copy set aside before starting up a new version. If you've been using the Gtk-OSX build, version 3.2.4 or later, just copy <code>Library/Application Support/gramps/grampsdb</code>. (Right click/option click and select "Make a copy" from the menu. It will be named <code>grampsdb(2)</code>.

;'''New Version Notice:''': If you are upgrading from the pre-built Gramps Application version 3.2.3 or earlier (or a build from source version) and you want to keep your old database and settings, you'll need to create a <code>Library/Application Support/gramps </code> folder with your existing data in it. Unless you've changed the location in Preferences, the data is in a hidden folder in your home directory called "<code>.gramps</code>". Select a Finder window and select Go>Go to Folder from the menu. Type "<code>/Users/yourname/.gramps</code>" in the dialog box that opens up, and click on "Go". (Yes, subsitute substitute your userid for "yourname".) The hidden folder will appear, highlighted and open. Option-drag the whole thing to <code>Library/Application Support </code> (the one in your home folder, not the one in your boot drive's "root" directory). Slow-double-click on the new copy so that you can edit the name and delete the '.' at the beginning to unhide it.

{{man note|''Migrating to [https://en.wikipedia.org/wiki/Mac_transition_to_Apple_silicon Apple Silicon]?''|Make an [[How_to_make_a_backup|XML backup ]] of your databases on your Intel Mac and copy them to your Apple Silicon Mac and restore them there after installing Gramps. There seems to be a binary object incompatibility in SQLite3 databases, even when running an Intel binary using Rosetta2.}}

From the '''[[Download#Mac_OS_Xmacos]]''' page download the dmg. Once it's downloaded, you can open the file (just double click on it in Finder if your browser doesn't open it automatically) and drag the Gramps application wherever you like. Once installed on your computer, it opens like any other application.

The spelling checker uses [https://en.wikipedia.org/wiki/MySpell MySpell] dictionaries -- the same ones that [http://www.documentfoundation.org/download/ LibreOffice] and NeoOffice use. Unfortunately, they bury them in their application bundles, so you can download them [http://archive.services.openoffice.org/pub/mirror/OpenOffice.org/contrib/dictionaries/ here]. You need to install them in /Library/Dictionaries, and you'll need to authenticate as an administrator to do so. If you have one of them installed and know how to make symbolic links from the command line, you'll find them in Contents/share/uno_packages/cache/uno_packages, scattered about in the hash-named directories. You'll need to link both the aff and dic files (e.g., en_US.aff and en_US.dic).

All of the known bugs in previous version have been corrected in Gramps {{Version_Mac}} and later. There will no doubt be new ones; report them in the usual way on [https://www.gramps-project.org/bugs/my_view_page.php MantisMantisBT] ([[Using the bug tracker]] instructions). When reporting what you're sure is an OSX macOS specific bug, please set the Platform field to "mac" (no quotes, caps, or spaces!) so that I can find it easily.