Cross-platform. Works on iOS, Android, and the web.
Dropbox is the most reliable cross-platform path. If you already pay for Dropbox or have it installed, this is the shortest setup of any non-Apple option. The same workflow also covers OneDrive (and any other sync service that gives you a regular folder on disk).
Step 1: Install Dropbox on your computer
If you don't already have Dropbox installed, grab the desktop app from dropbox.com/install.
Sign in. The installer creates a Dropbox folder on your computer (usually ~/Dropbox on Mac and Linux, or C:\Users\YourName\Dropbox on Windows).
Open the Dropbox folder once to confirm it's syncing. You should see the green checkmark icon next to fully-synced files.
Step 2: Point Advisor Prep Hero at Dropbox
In Advisor Prep Hero, open File → Open Workspace.
Navigate to your Dropbox folder.
Create a new folder called Advisor Prep Hero inside Dropbox (or pick an existing one).
Select the folder and click Open.
Every Markdown file Advisor Prep Hero writes from now on lives in Dropbox and syncs automatically.
[Screenshot: Advisor Prep Hero with workspace pointing at Dropbox folder]
TODO: real screenshot of Advisor Prep Hero's workspace selector pointing at the Dropbox folder.
Step 3: Wait for sync
Open the Dropbox folder in Finder or File Explorer and watch for the green checkmark next to your Advisor Prep Hero folder. Markdown files are tiny, so this usually finishes in seconds.
TODO: real screenshot of the Dropbox iOS app browsing the Advisor Prep Hero folder.
Limitations to know
Treat your phone as read-only for now. Dropbox handles conflicts more gracefully than iCloud (it creates a clearly labeled "conflicted copy" instead of silently making a duplicate), but the cleanest workflow is still to edit on one device at a time.
Dropbox free tier is 2 GB. An Advisor Prep Hero workspace fits easily, but watch out if you also store photos or large files in the same Dropbox account.
Smart Sync (selective sync) can hide files from Advisor Prep Hero. If you've enabled Smart Sync to keep files cloud-only, Advisor Prep Hero won't see them locally. Right-click the Advisor Prep Hero folder in Finder and choose Make Available Offline to force a local copy.
Sync icons matter. If you write a file in Advisor Prep Hero and immediately open the phone, the green checkmark on the desktop side confirms the file has finished uploading. Wait for it before checking the phone.
OneDrive note
OneDrive works exactly the same way. Install OneDrive on your computer, point Advisor Prep Hero at a folder inside the OneDrive sync folder, and use the OneDrive iOS or Android app to browse on your phone. The steps above translate one for one.
What's next
If you want a sync option that doesn't depend on a third-party cloud, see the Syncthing guide. If you have an iPhone and a Mac, the iCloud Drive guide is even simpler.