Connect Drive on iPhone with Documents

Install Documents by Readdle from the App Store, add a new WebDAV server with your Drive URL and device password, and your files appear next to iCloud.

Article details

Type, difficulty, plans, and last updated info.

Type
Guide
Difficulty
Beginner
Plans
Nano · Starter · Pro · Agency
Last updated
Sep 9, 2026

iOS does not include a built-in WebDAV connection screen in Files. Documents by Readdle can connect to a WebDAV server and lets you browse, download, and upload files from within Documents.

Documents changes its labels between versions. Use the current app’s Add Connection flow, then select WebDAV Server.

Connection details

What Documents' "Add WebDAV Server" dialog asks for:

Documents field Value
Title any label (e.g. TrekMail Drive)
URL Copy the full Drive server URL from Sync devices, including its trailing slash. It is specific to the Drive scope selected on that page.
Login The username displayed on Sync devices. For Account Drive this is normally the account owner's email; for a mailbox it is that mailbox's address.
Password the dsync_… device password from Sync devices, not your dashboard password

If you haven't generated a device password yet, do that first: see Sync devices.

Before you start

You need a device password. Sync apps get their own one-time password, so you can revoke iPhone access without changing your dashboard login.

  1. Open Sync devices in your TrekMail dashboard.
  2. Click + Add new device.
  3. Name it (e.g. iPhone - Documents).
  4. For browsing and downloading only: check just View files. Documents works read-only.
  5. For uploading from Photos / camera roll: also check Edit files.
  6. Click Generate password and copy the password (dsync_...).

Tip: paste the password into your iCloud Keychain or password manager on the phone before continuing. Long random passwords are tedious on iOS keyboards.

Install Documents

  1. Open App Store.
  2. Search for Documents by Readdle (free, by Readdle Inc.).
  3. Install and open it.
  4. Skip the welcome screens and Readdle account prompt. You don't need a Readdle account to use WebDAV.

Connect to Drive

  1. In Documents, open My Files and tap the + button.
  2. Tap Add Connection.
  3. From the list of services, scroll to and pick WebDAV Server.
  4. Fill in:
    • Title: something memorable, e.g. TrekMail Drive.
    • URL: paste the Drive server URL shown on the Sync devices page and keep the trailing slash.
    • Login: paste the username displayed on that page.
    • Password: the device password (dsync_...).
  5. Tap Save (top right).

Documents tests the connection. If it succeeds, you'll see your Drive folders listed.

The connection is available in Documents under My Files. Documents can browse files available through iOS Files, but a WebDAV connection added to Documents is not guaranteed to appear as a separate location in Apple’s Files app. Use Documents itself to work with TrekMail Drive.

Working with files in Documents app

If you'd rather use Documents directly (richer features than Files):

  • Tap any file to preview.
  • Long-press a file → Move to organize a new upload or a local file.
  • Use the + button → Photos to upload from your camera roll.

This WebDAV endpoint does not support replacing an existing Drive file in place. Save an edited copy with a new name and upload it, or replace the file in the TrekMail Drive interface. Do not enable a Documents two-way sync job for TrekMail Drive unless you have tested its behavior with a disposable folder.

Offline access

Documents downloads files on-demand. To pin a file for offline:

  1. Long-press the file in Documents.
  2. Tap Download (or in some versions: Make available offline).

The downloaded copy remains available in airplane mode. If you edit it, save a new copy and upload it when you are back online.

Troubleshooting

  • "Authentication failed": use the device password (dsync_...), not your dashboard password. Generate a new device password if it still fails.
  • "Server is unreachable": copy the URL again from Sync devices, including the trailing slash.
  • An upload is denied: confirm that the device password has Edit files permission, then create a new password if needed.
  • An edited file does not save back to Drive: this endpoint does not allow an existing file to be replaced in place. Save a new copy or make the replacement in TrekMail Drive.

For broader sync issues, see Drive Sync troubleshooting.

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