Most businesses that look for a OneDrive alternative for document sharing are not unhappy with OneDrive as storage; they have simply hit the point where a confidential file needs to go outside the company and OneDrive was never designed to keep them in control of it. Sharing in OneDrive is a link with some permissions; it is not a gated, tracked, revocable channel with a signature at the end. 99 Data Rooms is exactly that, UK-hosted in London (see our security page), priced flat in pounds, with e-signature and AI legal drafting built in. So the recommendation is not to rip out OneDrive but to keep it for storage, try 99 Data Rooms free, and once you see the whole journey in one place, keep 99 and cancel the separate sharing, tracking and signing subscriptions you have been stacking around it.
The teams who feel this most are founders sending to investors, sales teams sending proposals and order forms, and any business handling documents that carry real consequences if they leak or go to the wrong person. If controlled sharing is the real need, our roundup of the best secure file sharing tools UK sets us in context.
A clear comparison
The table sets the two side by side on controlled sharing, the job that matters once a file leaves your company. Where a OneDrive capability depends on your Microsoft 365 plan or an add-on, we have written "check current plan", so confirm the detail with Microsoft directly.
| What matters | 99 Data Rooms | OneDrive |
|---|---|---|
| Send a document you can take back | Yes, one-click revoke even mid-view | Can change link permissions, check current plan |
| Page-by-page viewer analytics | Yes | No, not per-page, check current plan |
| Verified-email + NDA gate before viewing | Yes (NDA on Business) | No, check current plan for link controls |
| Per-viewer watermarking | Yes (Business) | Check current plan |
| Built-in e-signature with audit certificate | Yes, from Pro | No, needs a separate tool |
| AI legal drafting from vetted UK clauses | Yes, 17 vetted E&W templates | No |
| Data residency | UK (London) | Global, check current plan for region options |
| Pricing model | Flat GBP (Pro £19, Business £49) | Per user, bundled with 365, check current plan |
| Free tier | Yes, 3 rooms, 25 links, forever | Yes, free storage tier |
| File storage and Office collaboration | Modest storage, add-ons available | Large capacity, deep Office integration |
The takeaway: OneDrive stores and co-edits files well, and 99 Data Rooms sends them with control and carries them to signature, in the UK, at a flat price (see 99 Data Rooms pricing).
What OneDrive does well
Credit where due: OneDrive is strong storage, syncs neatly across devices, and integrates tightly with Word, Excel and the rest of Microsoft 365, so if you live in that ecosystem it is a natural home for your files. Keep it for that. What it is not built for is the controlled, provable, revocable sharing of confidential material to people outside your organisation. Adjusting link permissions is not the same as requiring someone to verify who they are and accept an NDA before viewing, watching page by page what they read, or cutting their access in one click afterwards. That is the gap 99 Data Rooms closes, and it is why the sensible step is to try 99 free and let it handle the sharing OneDrive cannot safely do. If you are weighing storage-first tools generally, our 99 Data Rooms versus Google Drive comparison covers the same question on the Google side.
Where 99 Data Rooms wins
The advantage lands the moment a file has to leave the company under control. In 99 Data Rooms you can draft a UK agreement from vetted England and Wales clauses in the AI drafter, which assembles vetted clauses rather than writing law, and is a starting point rather than legal advice, then gather it with your other documents into a room. You gate that room with a verified email, a one-time code, and, on Business, NDA acceptance before anyone sees a page (see gating and access control). You share it as a tracked, revocable link, one per recipient, and watch page by page who verified and read, with an honest split between a raw visit and a verified viewer who cleared the gate. On Business you watermark each copy so a leak points back to who received it, and you can swap a corrected file behind the same link without reissuing it.
When it is time to sign, e-signature is built in from Pro, and the executed PDF carries an audit certificate with the signer's IP, intent to sign, timestamps and a SHA-256 fingerprint. Electronic signatures are admissible for most commercial documents in England and Wales, though deeds, wills, land transfers and lasting powers of attorney carry extra requirements (see Sources), and that is general information, not legal advice. When the matter is done, one click revokes access, even mid-scroll. It is UK-built and UK-hosted in London, data resident in the UK, AES-256 at rest, TLS 1.2+ in transit, with a DPA on request. And to be precise on certifications: SOC 2 and ISO are held by our providers, Supabase and Cloudflare, not by 99 Data Rooms; we run on their audited platforms and do not claim their audits as our own.
Put concretely, a sales team can draft an order form, send it as a tracked link, see the moment the client reaches the pricing page, and get it signed with an audit certificate, without paying separately for a tracking tool, a signing tool and a template. That is several line items on the software bill folded into one flat, UK-hosted subscription, which is why the honest recommendation is to try it free and keep what earns its place. Our best virtual data room providers UK roundup is the wider view if a full data room is what you need.
How to try it and what to compare
Rather than weigh the table, put it to a real test. Take a document you would normally share from OneDrive, send it instead as a gated 99 Data Rooms link, and see what changes: you will know whether the right person verified and read it, which sections held their attention, and that you can withdraw access the moment you need to. While you are at it, look past the fact that OneDrive comes bundled with Microsoft 365 and ask what you actually pay extra for around it, a separate tool to track engagement, another to collect signatures, a template source to draft from, and check how much of that a single flat 99 Data Rooms subscription replaces. Confirm where your OneDrive data is stored against UK hosting in London if data residency matters to you or your clients. And note the friction to begin: no sales call, no card, just a few minutes to run a document end to end. Most teams find OneDrive stays as their Office file store while 99 Data Rooms takes over the confidential sharing, tracking, drafting and signing they had been assembling from separate tools.
Try the UK-hosted alternative free
Try 99 Data Rooms free on the documents that need control: the free tier is genuine, not a trial, three rooms, twenty-five active links, forever, no card. Start for free, send one confidential document as a gated, tracked, revocable link, sign it, and see how much of your current stack a single UK-hosted place replaces. Keep your files in OneDrive if you like, but for sharing that has to stay in your hands, the whole journey already works in one place, and it is only getting better.
Sources
- Microsoft OneDrive and Microsoft 365 hosting, plans and per-user pricing (verify current detail): Microsoft official site, https://www.microsoft.com/microsoft-365/onedrive/online-cloud-storage , and Microsoft 365 pricing, https://www.microsoft.com/microsoft-365/buy/compare-all-microsoft-365-products . Treat plan and data-region specifics as subject to change and check your current plan.
- Electronic signature admissibility in England and Wales: Law Commission, Electronic execution of documents (2019), https://lawcom.gov.uk/project/electronic-execution-of-documents/ ; HM Land Registry Practice Guide 82, https://www.gov.uk/government/publications/electronic-signatures-accepted-by-hm-land-registry-pg82
Is OneDrive secure enough for confidential documents?
OneDrive is reasonable storage, but for sending confidential documents outside the company it lacks the controls a data room gives you: verification and NDA acceptance before viewing, page-by-page read tracking, per-viewer watermarking and one-click revocation. Check OneDrive's current sharing controls, but that gap is exactly why 99 Data Rooms exists. This is general information, not legal advice.
Is there a cheaper alternative to OneDrive for sharing?
99 Data Rooms is priced flat in pounds, Pro £19 and Business £49 a month, with a permanent free tier (see the pricing page), and it can replace the separate sharing, tracking and signing tools you use alongside OneDrive. Because OneDrive usually comes bundled with Microsoft 365, compare on the whole stack rather than storage alone, and verify current prices with both.
Where is my data stored?
With 99 Data Rooms, in the UK: it is UK-hosted in London with data resident in the UK, UK GDPR and Data Protection Act 2018 aligned, with a DPA on request. OneDrive is a global Microsoft service; check its current regional and residency options directly. For UK teams that need data kept in-region by default, that is often decisive.
Can I keep using Microsoft 365 alongside 99 Data Rooms?
Yes. Keep OneDrive and Office for storing and editing your files, and use 99 Data Rooms for sending documents outside the company with control and getting them signed. Most teams find it lets them drop the extra sharing and e-signature tools they had added on. Try it free and see how much it absorbs.
Does 99 Data Rooms include e-signature?
Yes, from the Pro tier, with sequential signers, reminders and a tamper-evident audit certificate, as part of the same journey as sharing and tracking rather than a bolt-on. E-signatures are admissible for most commercial documents in England and Wales, subject to the usual exceptions. General information, not legal advice.
Comparison details are checked against public vendor pages at the date shown in the article and may have changed since. Names and trademarks belong to their owners.