FileSeal is a UK-hosted secure document sharing service for professionals, and a Tresorit alternative only for one specific job: getting documents in from someone outside your firm. You create an encrypted upload link in about 30 seconds, your client uploads without creating an account, and you download once before the files are deleted from FileSeal’s servers. The free trial is 5 secure requests with no time limit and no card. Professional is £29 a month (£25 billed annually) and Teams is £59 a month (£47 billed annually) for up to 5 people including the owner, both plus VAT.
Two different jobs
This is not a case of one tool being better
Tresorit is a subscription platform for storing and collaborating on encrypted files. FileSeal exists for the handoff moment and then gets out of the way. Read the row that matches your problem, not the row count.
No account for your client
A client opens a FileSeal link, selects files and uploads. Nothing to install, no password to set, no seat to buy for them.
UK on every plan
Tresorit assigns customers without a Data Residency Option to data centres in Ireland, and UK selection is a Business and Enterprise feature. FileSeal hosts in the UK on every plan.
Deletion is the default
Tresorit keeps your files, because that is what storage is for. A FileSeal link works once and the files are then deleted from FileSeal’s servers.
FileSeal compared with Tresorit
| Feature | FileSeal | Tresorit |
|---|---|---|
| What it is built for | Collecting one set of documents from someone outside your firm | Encrypted storage and collaboration for your team over time |
| Does the other person need an account | No | Account-based service; external sharing is a feature of it |
| After you download | Deleted from FileSeal’s servers | Files remain stored, which is the point of the product |
| UK data residency | UK on every plan | Ireland by default; UK region selectable on Business and Enterprise |
| Encryption | AES-GCM-256 on the device; zero-knowledge in Most private mode only | End-to-end encrypted, described as zero-knowledge |
| Published price | £29/month plus VAT, flat, one user | Per user per month, not shown numerically until checkout |
| Minimum users | One | 3 on Business, 5 on Business Pro |
| Free entry point | 5 secure requests, no time limit, no card | 14-day free trial |
Prices and facts last reviewed: September 2026. Prices exclude UK VAT.
Tresorit details read from its published business pricing and data residency pages on 3 September 2026. Check both vendors’ current pages before making a decision.
Frequently asked questions
What UK firms ask when weighing the two.
What is the best Tresorit alternative for UK professionals?
It depends on the job. If you need a place for your team to keep and collaborate on encrypted files over time, Tresorit is built for that and FileSeal is not. If what you actually need is to get one set of documents from a client who is not in your team, FileSeal is purpose-built for that moment: an encrypted one-time upload link, no account for the client, and deletion from FileSeal’s servers after you download.
How much does Tresorit cost compared to FileSeal?
Tresorit does not publish a numeric price on its business pricing page; the figure appears during checkout. Its business plans are priced per user per month, with a minimum of 3 users on Business and 5 on Business Pro, and a 14-day free trial. FileSeal publishes its prices. The free trial is 5 secure requests with no time limit and no card. Professional is £29 a month (£25 billed annually) and Teams is £59 a month (£47 billed annually) for up to 5 people including the owner, both plus VAT.
Does Tresorit store data in the UK?
Not by default. Tresorit states that customers without a Data Residency Option are automatically assigned to data centres in Ireland, and that choosing a region such as the United Kingdom is available only for Business and Enterprise customers. FileSeal hosts the application, database and encrypted files in the UK on every plan.
Is Tresorit zero-knowledge, and is FileSeal?
Tresorit describes its service as end-to-end encrypted and zero-knowledge. FileSeal is zero-knowledge only in its "Get a link" mode, labelled Most private, where the key lives solely in the link. In the default "Email them" mode FileSeal holds the key so it can email a working link and build a ZIP. Files are encrypted with AES-GCM-256 on the device before upload in both modes.
Do my clients need a Tresorit or FileSeal account to send me a file?
With FileSeal, no. Clients upload from any device without creating an account or installing anything. Tresorit offers external sharing features, but its model is an account-based subscription service built around your team’s stored files.
Can I use both Tresorit and FileSeal?
Yes, and for some firms that is the sensible answer. Tresorit holds the files your team works on over time; FileSeal handles the moment a document comes in from outside the firm and then removes it. FileSeal is not long-term storage, so nothing needs migrating into it.