Zynk vs Wormhole.app

Which is better for sharing files, Zynk or Wormhole.app?

Zynk gives you direct transfers without a file-size cap, saved devices and contacts, and a CLI for automation. Recipients can also open Zynk share links in a browser without installing anything. Wormhole.app offers encrypted browser links up to 10 GB; transfers over 5 GB need the sender's page to stay open. Choose Zynk for large direct transfers and everyday sharing from one app.

Facts checked as of 2026-10-20. View sources

See Zynk Shares Visit Wormhole.app

No size cap, remembered devices, and a native app behind the link

You send files to the same devices regularly and don't want to generate a new link every time.
You want direct device transfer with no 10 GB cap and no browser tab to keep open during the send.
You want a menu-bar tray with online contacts, conversations, in-app preview, and PDF signing in one app.
You need drop links, share links, and a CLI for scripts and servers.

Feature by feature

Feature by feature, what Zynk does and what Wormhole.app does.

Feature	Zynk	Wormhole.app
Recipient installEven	None for share or drop link recipients.	None. Browser only.
File sizeZynk wins	No file-size cap on direct transfers.	Up to 10 GB.
EncryptionEven	End-to-end encrypted. Only the receiver devices you send to can unlock the file.	AES-GCM in the browser. Decryption key stays in the URL fragment, not sent to the server.
Expiration	Direct transfers never expire. Share and drop links expire on your terms, not after 24 hours.	Encrypted server storage for files up to 5 GB lasts 24 hours.
Direct device transfer	Yes when both sides have Zynk.	Peer-to-peer for files over 5 GB. Smaller files can be stored encrypted for 24 hours.
Sending larger filesZynk wins	Native apps and CLI handle direct transfers without a file-size cap.	Above 5 GB, the sender must keep the browser page open until the recipient downloads. Maximum 10 GB.

Recipient installEven

Zynk: None for share or drop link recipients.
Wormhole.app: None. Browser only.

File sizeZynk wins

Zynk: No file-size cap on direct transfers.
Wormhole.app: Up to 10 GB.

EncryptionEven

Zynk: End-to-end encrypted. Only the receiver devices you send to can unlock the file.
Wormhole.app: AES-GCM in the browser. Decryption key stays in the URL fragment, not sent to the server.

Expiration

Zynk: Direct transfers never expire. Share and drop links expire on your terms, not after 24 hours.
Wormhole.app: Encrypted server storage for files up to 5 GB lasts 24 hours.

Direct device transfer

Zynk: Yes when both sides have Zynk.
Wormhole.app: Peer-to-peer for files over 5 GB. Smaller files can be stored encrypted for 24 hours.

Sending larger filesZynk wins

Zynk: Native apps and CLI handle direct transfers without a file-size cap.
Wormhole.app: Above 5 GB, the sender must keep the browser page open until the recipient downloads. Maximum 10 GB.

What we noted

Wormhole.app provides end-to-end encrypted browser links. Files up to 5 GB can be stored encrypted for 24 hours; larger transfers require the sender's page to stay open.
Zynk share-link recipients also use a browser without installing an app. For direct transfers, Zynk adds saved recipients and no file-size cap, with native apps and a CLI.