But does it work with TOR? It looks like you need an additional payment. If you buy the Lifetime plan, it's not encrypted, you have to include the Encryption separately.
No cloud service I know works with Tor. Tor is itself not designed to handle large file transfers. As for the encryption, don't trust, verify. You can't verify these services actually use strong encryption for your files. Better encrypt them yourself with something like 2048-bit RSA.
If you want to make an anonymous upload, then better go to a public place with free Wi-Fi and a privacy-focused Live OS like
Kodachi.