Solar Pro 4 free through July

A desktop AI agent
that works inside your folders

It opens your documents, reads your spreadsheets, and writes files back. Scanned PDFs and Korean HWP included. Nothing to upload; it works on the files already on your machine.

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Start free · No card required

What you get

Ask in plain words, get files back

It doesn't end in the chat window. When the work is done, real files are sitting in your folder.

Scattered records into a P&L

Compare the 12 CSVs in the sales folder, the receipt PDFs in expenses, and budget.xlsx, then build a monthly P&L

  • xlsxmonthly-pl.xlsx
  • pngbudget-vs-actual.png
  • docxanomalies.docx

Risk clauses out of 100 contracts

Go through every contract in the folder and pull out only the clauses that differ from our standard terms

  • xlsxreview.xlsx
  • docxrisk-summary.docx
  • pdfannotated.pdf

A grant application, filled in

Read the audited accounts PDF and the HR xlsx, then fill in the grant application HWP

  • hwpxapplication-filled.hwpx
  • xlsxattachments.xlsx
  • mdneeds-review.md

Action items out of a recording

Listen to today's meeting recording and list the decisions and action items by owner

  • xlsxaction-items.xlsx
  • docxminutes.docx
  • mdtranscript.md
Loom - [monthly-close]
monthly-close
  • 2026-06
  • sales-2026-06.csv
  • expense-receipts.pdf
  • output
  • monthly-pl.xlsx
  • budget-vs-actual.png
  • anomalies.docx
CHAT

Build the monthly P&L

Done · Tools 6

Saved 3 files to the folder.

The workspace

You watch it work

Most office work isn't producing things. It's reading, comparing and checking them. So the document stays open beside the conversation.

Opens in place
PDFs, Korean HWP documents, spreadsheets and slide decks open inside the app rather than being handed off to another program. Audio files open with a transcript alongside.
Click a citation, land on the line
Click any source the agent cites and you jump to that line of that file, or in a document, to that page. You never have to go hunting for where a claim came from.
Fix it while you're looking at it
Edit spreadsheet cells directly; revise Markdown and code in place. The agent picks up your changes and carries on.
See only what changed
Every file the agent touches leaves a record. Compare before and after side by side, and roll it back if you don't like it.

Opens directly in the app

PDF · HWP · HWPX · DOCX · PPTX · XLSX · CSV · Markdown · HTML · PNG · JPG · SVG · MP3 · WAV · MP4 · WEBM · code, text and more

Korean HWP documents are read and written without Hancom Office installed. You can still open anything in your usual program if you prefer.

Loom - [contracts]
contract-2026.pdf
Art. 12 (Auto-renewal)

Page 14 / 32

CHAT

Anything that differs from our standard terms?

The auto-renewal clause differs from your standard terms.

contract-2026.pdf p.14

Click to jump there

Workspaces

It builds up as you go

Open a folder and that becomes the workspace. Conversations, search indexes and anything you asked it to remember stay with that folder.

One folder, one context
Different folders, different contexts. A conversation in the contracts folder never bleeds into the monthly close.
Tell it to remember
Ask it to remember something, like "this report is always in thousands", and every later conversation in that folder picks it up automatically.
Turn repeat work into a skill
Work you do every month can become a skill: drafted mid-conversation, installed once you've checked it, and rolled out across your organisation.
On a schedule
Set work to run at a time or on a repeat, like Monday mornings.

* Runs while the app is open

Loom
Workspaces
  • monthly-close12
  • contracts31
  • grant-application8
  • meeting-notes24

Remembered in this folder

Always report figures in thousands

Put a summary table on page one

Use full legal names for counterparties

Skills used in this folder

monthly-closereceipt-match
Data boundary

Sensitive data is blocked on your device

Identifiers like national IDs and account numbers are substituted on your device before anything reaches the model. You switch the filter on in settings, and choose what it should catch.

Stays on your machine

The files themselves
Nothing is uploaded. They are read in place, in the folder you opened.
Conversation history and search indexes
They live in the folder and are not sent to a server.
Identifiers such as national ID and account numbers
They only ever leave in substituted form, and the reply shows the original values on screen.

Exceptions

As much document content as a request needs goes to the model provider you chose. The semantic-search index (original text) and web search queries leave only when you use those features, and both can be turned off in settings.

If an identifier gets past the filter, the request is blocked rather than sent. Because the check runs before transmission, there is no path where the filter fails quietly and data leaves anyway.

F1 0.938 on Korean identifiers, p95 latency 0.15ms. The method and the comparison set are in the filter benchmark

Your machine

Hong Gil-dong · 010-1234-5678

read from contract-2026.pdf

Substituted, then sent

AI model provider

[NAME] · [PHONE]

restored on screen in the reply

Sharing

Hand someone the same view

Send a link to the document you were reading and the recipient sees it in their browser. Nothing to convert, nothing to attach.

Renders in the browser
HWP documents, PDFs, spreadsheets and slide decks included. The recipient installs nothing.
Inside the org, or by link
Open it to your organisation, a team or named people, or create a public link that works without signing in.
Close it whenever
Any link you create can be revoked, and it stops opening the moment you do.
Sessions and skills too
Share a whole working session so your team can review it, or publish a skill you built to the rest of the organisation.
Loom - [monthly-close]
monthly-pl.xlsx
Month
Sales
Costs
Apr
12,400,000
9,100,000
May
13,900,000
9,800,000
Jun
15,200,000
10,300,000
loomm.ai/shared/x7f2
loomm.ai/shared/x7f2
monthly-pl.xlsx
Month
Sales
Costs
Apr
12,400,000
9,100,000
May
13,900,000
9,800,000
Jun
15,200,000
10,300,000
Completion rate

The gap shows up on hard work

Easy tasks work on any agent. The difference appears when the source material is messy and the job has many steps.

Out of 10 runs, how many finished the job properly

  • Loom9.8
  • Pi7.8
  • Hermes7.1
  • OpenCode4.2

₩195

Average cost per task

₩4,878

The same tasks on a frontier model

12 tasks × 10 runs, all on the same model. Task design, scoring criteria and limitations are in the benchmark write-up

Small things

The things you only know if you've been there

Each one is trivial on its own. Any one of them going wrong costs you a day.

  1. 01Documents never stall with a cryptic error on Korean Windows. The Korean-encoding problems are fixed ahead of time.
  2. 02Korean text in charts never renders as empty boxes (□). The fonts ship inside the app.
  3. 03Korean sites built on older standards come through without broken characters.
  4. 04Government forms are filled in the blanks only, leaving the table layout alone, and if the original changed in the meantime, it stops before writing.
  5. 05When the agent says it's done, that claim is checked against what actually happened. Claiming a file it never wrote gets caught.
  6. 06Every file the agent touched can be rolled back, including ones it deleted or moved.
  7. 07Installing never breaks the settings of other programs on your machine.
  8. 08On Windows it's one install and done. It never asks you to install anything else.
  9. 09Fonts, the editor and the document viewers are all built in. Nothing is fetched from outside, so it works the same on a restricted office network.
  10. 10If the agent edits a file you have open, a banner tells you, and nothing gets silently overwritten.
User Feedback

What real users told us

Excerpts from conversations about real work they've handled.

Managing Patent Attorney at D Patent Office

D

I tried every AI service for checking information across a large set of PDFs, but only Loom worked.

D

I tried the same task with various agents like A and B, but natural language instructions didn't work well, so it felt inflexible.

Me

A's service requires writing workflows yourself, so it's hard without developer-level knowledge.

D

Right. I was even considering solving it later by running it via API.

D

Loom solves it right away with natural language. I'm totally sold!

Executive at L Corp

L

Within the same chat I moved to a different file, and it immediately worked on that file. The context switching is really smooth.

L

Unlike M365 Copilot, it's great that you can see the output right in the viewer. With M365 you have to create the file, download it, and open it...

Me

That's why we made it a desktop app. Real work is mostly exploratory.

L

Right. Executives usually want a single "Company AI," a unified system. But once you do real work, you quickly see how detached that idea is from reality.

L

So separately from that, I think a personal productivity tool like Loom is absolutely necessary.

Pricing

From free to enterprise

Solar Pro 4 free through July

Free

$0

Start with no commitment

  • 500 credits
  • Full feature trial
  • Local folder connection
  • No card required

Pro

$20/mo

For individual users

  • 2,000 credits/month
  • Web scraping
  • DB connection
  • Skills (automation/extensions)
  • Image generation

Team

Recommended

$25/seat

For team collaboration

  • All Pro features
  • AI session sharing
  • File/folder sharing
  • 100GB cloud storage
  • Team management

Enterprise

Contact

For large organizations

  • All Team features
  • On-premise installation
  • Custom LLM integration
  • SSO/SAML
  • Audit logs

Frequently Asked Questions

Don't do it yourself. Delegate to the agent.

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