If you already have a stack
What are you actually paying for?
Most businesses are paying monthly for at least one thing that does something small, does it once a week, and costs more every year.
No account or connection needed for the calculator below.
Here is what we pay for each month: Vercel Pro, Auth0, a form builder, a scheduling tool.
reviewed, not rewrittenreported back · $0.01–$0.05
Tell it what you pay for. It reports what is genuinely replaceable, what you should keep paying for, and can build the replacements — which you then own instead of renting.
How it goes
It reports. You decide.
The review playbook is explicitly told to report and not rewrite — nobody asked for their setup to be changed by a review. What happens next is your call, one item at a time.
Tell it what you pay for
Or point it at the code and config you already have
It reports back
What each thing does, and whether owning it is realistic
You pick what to replace
Nothing changes until you say so
It builds the replacement
In a repo you own, not another subscription
Do the arithmetic
What would you actually save?
Tick what you pay for. Adjust any figure that is wrong for you. Nothing is sent anywhere — this runs in your browser.
Your time is not in this number. Something you host is something you patch — budget an hour a month, and more the first month.
The honest half
Some things you should keep paying for.
An agent that recommended replacing everything would be an agent optimising for looking useful. The right-hand column exists because the advice is only worth anything if it is sometimes “leave that alone”.
- A form builder charging monthly for three forms
- A scheduling tool you use twice a week
- A dashboard that reads one spreadsheet
- Per-seat tools where you are the only seat
- Anything whose price rose while its features did not
- Card payments — compliance is the product
- Email deliverability — reputation takes years to build
- Anything holding regulated or health data
- Your accounting software, honestly
- Anything where an outage would end your week
What owning it looks like
A scheduling tool, built once and owned.
“Build a booking system for Ridgeline Barbers. Customers give their name, a phone number and a time, and it saves the booking. There has to be a page showing all the bookings that have been made.”
3 turns1033s
$1.2366
See all 53 builds →
What you end up with
Something you own, not another bill.
A replacement built here is code in your own repository, running where you choose. There is no per-seat price on it, no plan change that removes a feature you rely on, and no renewal email. If you stop using us tomorrow it keeps working, because it was never running on our permission.
Tell it what you are paying for.
The review costs $0.01 to $0.05, and it will tell you when the answer is to change nothing.
Questions
Asked, answered
How does it find savings?
You tell it what you pay for, or point it at your stack, and it reports which tools do something you could own instead and which are worth keeping. It reports rather than rewriting anything.
Will it tell me to replace everything?
No. Payments, email deliverability and anything regulated are usually worth paying for, and it says so. A recommendation to self-host your card processing would be a bad recommendation.
Does it build the replacement too?
Yes, if you want it to — and the result is code in a repository you own, not another subscription.