See the cash-flow problem while you can still do something about it
Most small businesses do not fail because they are unprofitable. They fail because the money arrives three weeks after it was needed. Bellwether connects to your bank and your invoicing, and shows you one thing: what your balance looks like for the next thirteen weeks, given what you already know. Not a forecast built on hope — a forecast built on the invoices you have actually sent and the bills that are actually due. It will not make you more money. It will tell you, in October, about the problem you would otherwise have discovered in December.
Trusted by these six companies so far

- 13 weeks
- of visible runway
- 9 min
- to connect and see your first forecast
- £0
- until you have more than one bank account

Everything you need to run your books.
Well everything you need if you aren't that picky about minor details like tax compliance.
The horizon a small business can actually act on. Far enough to change course, close enough that the numbers are real rather than aspirational.

Simplify everyday business tasks.
Because you'd probably be a little confused if we suggested you complicate your everyday business tasks instead.
Scenarios
Ask the awkward question before you have to live it
What if the biggest customer pays thirty days late? What if I hire in March instead of June? Change one thing and watch thirteen weeks rearrange themselves.

Chase
The overdue invoices, ranked by how much they hurt
Not just who owes you — who owes you money you are counting on in week four. Chasing is triage, and most tools sort by date instead of by damage.

The Monday note
One short email, every week, that you will actually read
What changed, what is coming, and whether you still need to worry. If nothing changed, it says so in one line and does not waste your morning.

Ask the awkward question before you have to live it
What if the biggest customer pays thirty days late? What if I hire in March instead of June? Change one thing and watch thirteen weeks rearrange themselves.
The overdue invoices, ranked by how much they hurt
Not just who owes you — who owes you money you are counting on in week four. Chasing is triage, and most tools sort by date instead of by damage.
One short email, every week, that you will actually read
What changed, what is coming, and whether you still need to worry. If nothing changed, it says so in one line and does not waste your morning.


Get started today
It's time to take control of your books. Buy our software so you can feel like you're doing something productive.
See your thirteen weeksLoved by businesses worldwide.
Teams of all sizes trust Velocity to streamline their launches and keep everything moving forward.
It showed me a red week in November while it was still September. We moved one payment and chased two invoices and the red week simply never happened. I do not know what I would have done in November.
Greta HalloranFounder, Harlow & Vine
I had a spreadsheet that did this. It was wrong, and worse, I trusted it.
Femi BalogunDirector, Ridgeway Cycles
Simple pricing, for everyone.
It doesn't matter what size your business is, our software won't work well for you.
Solo
One bank account, one currency, the full thirteen-week forecast and the Monday note. Free permanently, not for thirty days.
Free
- One bank account
- Thirteen-week forecast
- The Monday note
- Overdue invoice list
Business
Multiple accounts, scenarios, and the chase list ranked by impact. The plan for a business with staff to pay and a reason to sleep at night.
£29 / month
- Unlimited bank accounts
- Scenarios
- Impact-ranked chase list
- Multi-currency
- Export to your accountant
Advisor
For bookkeepers and fractional CFOs running this for several clients at once. One login, every client, one Monday note per business.
£79 / month
- Up to 20 client businesses
- Per-client Monday notes
- White-labelled reports
- Priority support

Frequently asked questions
If you can't find what you're looking for, email our support team and we will get back to you within one business day.
Is this accounting software?
No. It reads from your accounting software and your bank; it does not replace either. If you are looking for something to do your books, this is the wrong product and we would rather you knew now.
Is my banking data safe?
We connect read-only through your bank's own open-banking API. Bellwether cannot move money, and we could not initiate a payment if we wanted to — the permission simply does not exist on our connection.
Why thirteen weeks?
It is a quarter, and it is the horizon where a small business can still change the outcome. Twelve months of forecast for a company with three months of runway is a story, not a tool.
What if my forecast looks terrible?
Then you have found out in time, which was the entire point. The uncomfortable version of this product is the useful one.





