This app parses the Arc iOS app's GPX exports and sends location to the Day One journaling app. You must have the Day One command line interface installed and set the path to your GPX files on line 8.

arc_to_dayone.rb

#!/usr/local/opt/ruby/bin/ruby
# Scipt to send Arc locations to Day One

require 'nokogiri'
require 'time'
require 'json'

filepath = "/Path/to/files/#{ARGV[0]}.gpx"
f = File.open(filepath)

gpxdoc = Nokogiri::XML(f) 

gpxdoc.css("wpt").each do |point|
	lat = point.attr("lat")
	lon = point.attr("lon")
	place = point.css("name").text.strip
	t = point.css("time").text
	time = Time.parse(t)
	iso = time.utc.iso8601
	`dayone2 new "## #{place}\n\n" -j Inbox -isoDate #{iso} --coordinate #{lat} #{lon}`
end