DEVONthink Alternative: DEVONthink for Windows, DEVONthink Pricing and AI Over Your Documents
DEVONthink runs only on a Mac, costs $99, $199 or $499 up front and $49 to $149 a year to keep receiving updates. There is no Windows version and none is announced. If you work on a PC, share an archive with someone who does, or mostly want to ask your PDFs questions rather than file them, MentalClone runs in any browser, reads PDF, Word, Excel, text and scanned pages, and answers only from what you uploaded, from about $11 a month.
- ✓ Works on Windows, Mac, Linux and a phone browser, nothing to install
- ✓ AI is built in: no provider account, no API key, no local model to set up
- ✓ Each answer names the document it came from, and says so when your files are silent
DEVONthink and Obsidian prices come from each vendor's own pricing page.
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Why people look for a DEVONthink alternative
DEVONthink has a loyal following for good reasons, and most people who leave are not unhappy with the software itself. They leave because one of four practical things changed. Pin down which one applies before you compare anything else.
You moved to a Windows PC
This is the most common trigger by a wide margin. A new job issues a Windows laptop, or you switch for a specific piece of software, and a ten-year database suddenly has no desktop app to open it. The developer's own forum has long threads asking for a Windows build, and the answer has not changed: DEVONthink is built for macOS and iOS.
The update fee arrived
DEVONthink 4 moved to a license plus a year of updates. The app keeps working after that year, but further updates cost $49 for Standard, $99 for Pro and $149 for Server each year you extend. For many long-time users that turned a one-off purchase into something that behaves like a subscription, and it prompted them to price out the alternatives for the first time.
The AI needs setting up
DEVONthink 4 added generative AI, and it works with the model you choose: an online provider through your own account, or a model you install locally. That flexibility is a genuine plus for tinkerers. For someone who just wants to ask a question of their files, it means a second bill, a key to manage and a model to pick before the first answer.
Filing became the job
DEVONthink rewards people who build groups, tags, smart rules and replicants. If you stopped maintaining that structure, the database still holds everything, but finding the answer means remembering where you put it. What you actually wanted from the archive was answers, and the filing was only ever a route to them.
DEVONthink pricing compared with the alternatives
US list prices from each vendor's own pricing page. DEVONthink is priced as a license plus optional yearly update extensions, so both numbers are shown.
| Tool | Price (US) | Runs on | AI over your own files | Best for |
|---|---|---|---|---|
| DEVONthink Standard | $99 with one year of updates, then $49 a year to keep updating. Two desktop seats. | macOS Ventura or later | Yes, with an AI model you connect yourself | A single Mac user with a personal archive |
| DEVONthink Pro | $199 with one year of updates, then $99 a year. Includes five mobile seats for DEVONthink To Go. | macOS, plus iPhone and iPad | Yes, with an AI model you connect yourself | Mac users who also want the archive on iPhone and iPad |
| DEVONthink Server | $499 with one year of updates, then $149 a year. Includes 25 mobile seats. | Runs on a Mac, others use it in a browser | Yes, on the Mac that hosts it | A small office that already keeps a Mac running as the host |
| Obsidian | Free for personal use. Sync $4 or $8 per user per month billed yearly ($5 or $10 monthly). Free for work too; the $50 per user per year commercial license is optional. | Windows, Mac, Linux, iOS, Android | Community plugins with your own API key | Notes you write yourself, in markdown you fully own |
| Paperless-ngx | Open source. You pay in hosting and the time to run a server. | Self-hosted, used in a browser | No built-in question answering | Scanned paperwork, OCR and tagging, if you are comfortable running a server |
| MentalClone | 79 PLN a month (about $21) or 474 PLN a year (about $11 a month). Professional 199 PLN (about $54). | Any browser: Windows, Mac, Linux, phone | Built in, answers restricted to what you uploaded | Asking a document archive questions instead of filing it |
Where DEVONthink still wins, and it wins a lot: everything lives on your own disk and works offline, its search and classification handle archives of tens of thousands of files, it indexes folders in place, it has email archiving, scripting and smart rules, and after the first year you can simply stop paying and keep the version you have. If you are staying on a Mac and you enjoy running your archive, there is no reason to leave.
Is there a DEVONthink for Windows?
No. DEVONthink is available for macOS, with DEVONthink To Go for iPhone and iPad, and there is no Windows or Linux version. The only official route from a PC is DEVONthink Server, which lets other people reach a database in a web browser, but the server itself still has to run on a Mac that stays switched on. So a Windows user has three realistic options.
Keep a Mac as the host
Buy Server at $499 and reach it from the PC in a browser. It keeps every smart rule and group you built. It also means a Mac on your desk or in a closet that must be on whenever you want your files, plus $149 a year for updates.
Rebuild in a cross-platform notes app
Obsidian runs on Windows and is the most common landing spot for notes. It handles markdown well and PDFs only as attachments, so a document-heavy archive becomes a folder of files you open one by one. Expect to rebuild your structure by hand.
Move the documents, not the structure
Export the files you actually search, upload them to MentalClone and ask questions in plain English from any browser. No groups or tags to recreate, because you are not browsing the archive, you are questioning it. This works best when the value sits in PDFs and reports rather than in your folder tree.
How to move a DEVONthink database to MentalClone
Four steps, in an order that keeps everything reversible. Nothing here deletes your DEVONthink database, so you can run both side by side until you are sure.
Export the files
On the Mac, select the groups you care about and export them as files and folders. You get ordinary PDFs, Word files and text on disk, which is what you want to carry to any new tool.
Pick the working set
Most archives have a core of a few dozen documents that answer most questions: current client files, the last few years of reports, the contracts you reread. Start with those, not the whole database.
Upload and ask one real question
Upload PDF, DOC, DOCX, XLSX, TXT, CSV, RTF or photographed pages, up to 100 MB a file. Then ask something you looked up in DEVONthink last month and check the answer against the source it names.
Keep the export as your archive
Hold on to the exported folder. Plain files are the one format every tool can read, and they keep your decision cheap to revisit later, whichever app you settle on.
Who switches, and what they ask
Attorneys and paralegals on Windows
Case files, deposition transcripts and research memos that used to live in a Mac database. Typical question: "which of these transcripts mentions the March delivery date?" The answer comes back with the file it was found in, so it can be checked before it goes anywhere.
Researchers and academics
Papers and reading notes collected over years. Typical question: "which of my sources measured this on adults rather than students?" Being told the material does not cover it is worth as much as a quote, because it stops a claim you cannot support.
Consultants and small firm owners
Proposals, deliverables and board material, often shared between a Mac at home and a PC at the office. Typical question: "what did we quote this client for the rollout last year?" Asked from whichever machine is in front of you.
If your archive is mostly notes you wrote rather than documents you collected, a notes app is the better fit, and our Obsidian alternative comparison covers that side. If you are weighing the whole category, the personal knowledge management app page lays out the options by how you work, and the ChatPDF alternative page compares tools built only for chatting with PDFs.
Questions people ask before leaving DEVONthink
What is the best DEVONthink alternative?
It depends on why you are leaving. For notes you write yourself on Windows, Obsidian is the usual choice. For scanned paperwork on your own server, Paperless-ngx. If what you want is to ask a large set of PDFs and reports questions from any computer, a document-first tool like MentalClone replaces the part of DEVONthink you actually used without the filing.
Is DEVONthink available for Windows?
No. DEVONthink runs on macOS Ventura or later, with DEVONthink To Go on iPhone and iPad. There is no Windows or Linux build. DEVONthink Server lets people on other systems open a database in a web browser, but the server still has to run on a Mac, so a PC-only setup needs a different tool.
How much does DEVONthink cost?
DEVONthink 4 costs $99 for Standard, $199 for Pro and $499 for Server. Each license covers two desktop seats and one year of updates. After that the app keeps working, and extending updates costs $49, $99 or $149 a year depending on the edition. There is a trial of at least 30 days or 150 hours of use.
Is DEVONthink a one-time purchase?
Partly. You pay once and can use that version indefinitely, which is why many people still call it a one-time purchase. Updates are only included for the first year, though, so staying current with new macOS releases and new features costs a yearly extension fee from $49 for Standard to $149 for Server.
Does DEVONthink have AI?
Yes. DEVONthink 4 added generative AI for summarizing, tagging and analyzing documents, and it can connect to AI apps over MCP. You bring the model: an online provider through your own account, or a model installed locally on your Mac. MentalClone includes the model in the plan, so there is nothing to connect.
Is DEVONthink worth it?
For a Mac user who keeps a large local archive and likes to organize it, yes: it is one of the most capable document managers available and your data never leaves your disk. It is harder to justify if you work on Windows, rarely maintain the structure, or mostly want quick answers from your files.
Where does DEVONthink beat MentalClone?
In a lot of places: offline use, local-only storage, email archiving, scripting and smart rules, indexing folders in place, and handling archives of tens of thousands of files. MentalClone answers from the 50 most recently uploaded documents and quotes from up to four of them per answer, so it suits a working set of files rather than a lifetime archive.
Which files can I bring over?
PDF, DOC, DOCX, XLSX, TXT, CSV and RTF, plus photographed or scanned pages in JPG, PNG and similar formats, up to 100 MB per file. Text PDFs are read up to 120 pages and scanned PDFs up to 40 pages with OCR. PowerPoint files are not read, so export decks to PDF first.
Ask your archive a question from the PC in front of you
Paste a page from a real document into the box at the top and ask it something you would normally search DEVONthink for. If the answer holds up, upload the files you use most.
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