Galaxy use php codes. You can run rvn/keva nodes on one device (pc/mac/android) and setup an localhost php server to run Galaxy.Then use your local ip to use Galaxy.
Now "DraftCode" support run php on IOS. Your can use "Working Copy" to get Galaxy code or download codes by yourself. Then Use "Draftcode" to change nodes ip and use Galaxy.
Steps
1.Open "Working Copy" and click "+", select "clone repository", click url and input url, then click "clone".
https://github.com/kawww/Galaxy
2.Click rpc.php and change your node ip.
3.Click Repository, Click "share" on the top right, select "Setup Directory Sync", choose "DraftCode"->"filestore"
4.Open "Draftcode", click index.php, click run
5.Have fun!
You can update Galaxy code in "Working Copy" anytime.