A full history of every version.
Vowl keeps every version of every file. See exactly what changed, when, and who made it, with the reasoning behind each change kept attached so it never gets lost in an email thread.
One source of truth for every model.
One place to track every change, approve what goes live, and always know which version is real.
Free while we're in beta. No credit card required.
AI can build the model. You still have to stand behind it.
AI is changing how models get built and how analysis gets done. It hasn't changed whose name is on the work. Your team still has to know what changed, why it changed, and whether it holds up. Vowl gives you that record on every file.
Control the whole life of a file.
Nothing goes live until it's approved.
Reviewers see exactly what is changing and sign off on the record. Every approval is logged, so you always know which version went to the IC and who stood behind it. Your audit trail builds itself.
A second set of eyes on every change.
Vowl reads each change and flags what matters: broken references, assumptions drifting out of range, numbers that quietly stop tying out. Write your team's standards in plain English and get an automatic review on every change.
Lives where your team already works.
Pull the latest version into your workbook, save a working copy, and open a change request without ever leaving Excel. Changes sync back to Vowl the moment they're approved.
Excel
SharePoint
Google DriveBuilt for teams that can't afford a wrong number.
Private Equity
LBO models, investment memos, and portfolio files. Know exactly which version went to the IC and who approved it.
Investment Banking
Operating models, CIMs, and pitch materials across deal teams. Keep junior edits visible and senior sign-off on the record.
Corporate Finance & FP&A
Forecasts, budgets, and board decks. Stop guessing whose numbers are current across every planning cycle.
Accounting & Audit
An audit-ready trail for every workbook. Show exactly what changed between close cycles and who signed off.
Consulting
Client models and deliverables across engagements. Keep work product clean as teams roll on and off.
Revenue & Operations
Pricing models, capacity plans, and sales comp. The rest of the company quotes these numbers, so it matters that the quoted one was approved.
Your files stay yours.
Vowl holds the files a firm can't afford to leak, and we treat them that way.
- Encrypted in transit and at rest. Every version, every attachment, every diff.
- Access restricted and logged. Production data is locked down to authorized personnel.
- Never used to train AI models. We don't use your spreadsheets as training data.
Frequently asked questions
What is Vowl?
Git-style version control for the spreadsheets finance teams work in. You push versions of a workbook, open change requests, get AI-assisted reviews, and publish once they're approved.
Which files can I put under version control?
Excel workbooks (.xlsx) today, with PowerPoint rolling out. Work from the web app or directly inside Excel with the Vowl add-in.
What will it cost?
The Free plan covers one seat and costs nothing. Team is $500 a month for up to 25 seats, or $5,400 billed yearly. Larger firms are on Enterprise. See pricing.
I still need help. What's the fastest way to reach you?
Email david@vowl.io. We're a small team and we read every message.
Put your next deal through Vowl.
We're onboarding a few teams at a time so we can help each one get a live deal through it.
You're on the list. We'll be in touch.
No credit card. We reply within a day.