Eight protocols.
One Finder.

Driio is a file provider for SMB, NFS, SFTP, FTP, S3, WebDAV, OneDrive, and Dropbox. It runs on Apple's framework, so Spotlight, Quick Look, and the share sheet work like they would for any folder. No FUSE, no kernel extensions, no permission popups.

macOS 15.4 or later. iOS 18.4 or later. Universal purchase.

Driio app showing SMB, NFS, SSH, FTP, S3, WebDAV, OneDrive, and Dropbox connections mounted in Finder and iOS Files

What's in the box

A short list of the things that took the longest to get right.

Parallel transfers

Every protocol pools connections so multiple files move at once. SFTP adds per-file multi-stream transfers that adapt as throughput changes.

No relay servers

There's no Driio account. Credentials live in iCloud Keychain. Bytes go from your device straight to your server.

Built on the File Provider framework

No FUSE. No kexts. No "system extension blocked" popups. Spotlight, Quick Look, and the share sheet just work.

Per-connection tuning

Polling intervals, SFTP session counts, S3 multipart thresholds. Override the defaults if your network or server is unusual.

Activity dashboard

See uploads, downloads, and queued operations in real time. SMB and SFTP transfers respect Microsoft Office lock files.

iCloud sync

Add a connection on your Mac, it shows up on your iPhone. Passwords, SSH keys, and OAuth tokens sync via iCloud Keychain.

The protocols

One subscription, all eight. Notes below for what's worth knowing about each.

SMB
Windows shares, NAS devices, Samba servers. SMB2/3, with guest access and domain auth. Tested against Synology, QNAP, TrueNAS, and Windows Server.
SFTP
Password or key auth. Ed25519 key generation built in. Adaptive multi-stream transfers tune themselves as bandwidth changes.
NFS
NFSv3 for Linux, BSD, and NAS exports. Connection pooling and optional UID/GID override for when your Mac user doesn't line up with the server.
WebDAV
HTTPS-friendly so it generally passes through firewalls. Works with Nextcloud, ownCloud, and most corporate intranets.
FTP / FTPS
Implicit (port 990) and explicit TLS. Active and passive modes. Useful for the long tail of legacy hosts that haven't moved on.
S3
AWS S3 plus anything compatible: MinIO, Wasabi, Backblaze B2, DigitalOcean Spaces, Cloudflare R2. Multipart uploads for large files.
OneDrive
Microsoft Graph API with OAuth. The same surface that the official OneDrive clients use. Chunked uploads for files past 4 MB.
Dropbox
OAuth sign-in, no stored password. Real-time change detection via longpoll, with chunked large-file uploads.

Pricing

Seven days free. Then pick whichever fits. Same features in every tier.

Monthly

$1.99 / mo

For trying it out, or if you only need it occasionally.

Subscribe monthly

Annual

$14.99 / yr

Works out to about $1.25 a month. Most people pick this one.

Subscribe annually

Lifetime

$39.99 once

No subscription, no renewals. Buy it, keep it.

Buy once

Billed through the App Store. The seven-day trial does not require a payment method until it's over. Subscriptions can be cancelled in Settings.