What if the original developer is gone and there is no documentation?

That is a common starting point. Part of the Assessment is reading the code and writing down how it works, which is often the first documentation the app has ever had.

Will you need production access?

Only what the work requires, and we would rather start with the repo and a staging setup. You keep control of credentials and can revoke access at any time.

What stacks do you cover?

Next.js and React, and Python with Flask or Django. We do not claim depth in COBOL, mainframes or platforms like Salesforce, and we will say so early if your app sits outside what we do well.

How long does the Assessment take?

One to two weeks, depending on the size of the codebase. A sprint typically runs two to six weeks after that.

One accountable lead owns your engagement, and vetted senior engineers deliver under that lead's review. We are a new firm, and we think you should know that going in.

For founders and CTOs with an aging web app

If one person leaving would break your app, you have a risk. Let us shrink it.

It works. Mostly. Nobody wants to touch it, the person who understands it is the only one who deploys it, and every change feels like defusing something. We make it understandable, tested and safe to change, without betting the company on a rewrite.

Book a free 30-minute Triage Or run the instant check

Thirty minutes, one written page, no obligation. If we are not the right fit, we will say so.

Sound familiar?

You are in the right place if

There is a bus factor of one

One engineer holds the knowledge, the deploy steps and half the passwords in their head. Vacations make you nervous.

Small changes cause big surprises

A text tweak breaks checkout. Releases happen late at night, on purpose, with everyone holding their breath.

Everyone says rewrite, nobody scopes it

The rewrite idea keeps coming back, and so does the fear that it will take a year and still not match what the old app does.

How it works

From scary to boring, in four stages

Triage

A free 30-minute call and one written page of the top risks we can see from what you tell us.

Assessment

We read the code and write down what it actually does, where it is fragile, and a staged plan with a fixed quote.

Upgrade Sprint

Tests first, so we can prove behavior did not change. Then small, reversible steps toward a supported, maintainable state.

Handoff

Docs your team can follow, so the knowledge no longer lives in one head. The code and the logins stay yours.

The Assessment

What the Assessment puts in your hands

Starts at $2,500 / 1 to 2 weeks / credited against a sprint

A plain-language map of how the app is put together, who and what it depends on, and how it deploys
A risk register ranking what is most likely to hurt you: old versions, security gaps, missing tests, single points of failure
A recommendation on what to keep, what to patch and what, if anything, is truly worth rebuilding
A staged plan with each stage shippable and reversible on its own
A fixed quote for the Upgrade Sprint, in writing
Your fee refunded if we do not deliver the roadmap, and credited against the sprint if you proceed

The guarantee

If we do not deliver the written roadmap, you get the assessment fee back. If you go on to an Upgrade Sprint, the fee is credited against it. Sprint pricing is a fixed quote, given in writing before any sprint work starts.

Fair questions

The three things you are probably thinking

What will this cost?

The Assessment starts at $2,500, credited against the sprint if you proceed. The sprint itself is a fixed quote given after we have read the code. You will know the number before any sprint work begins.

Honestly, should we just rewrite?

Sometimes, yes, and the Assessment will say so if that is what the evidence shows. But rewrites lose years of quiet bug fixes and put everything on one cutover date. We start by finding out what is actually worth saving.

Can we trust a new firm with our core system?

Fair to ask. Start with the free Triage. The Assessment is refundable if we miss the roadmap, and you hold your own repo and credentials the whole time, so nothing is held hostage.

Straight talk

What you should know about us

Aventheon is a new firm. We have no client roster to show you, and we are not going to invent one.

What we do have is PDFCourt, a live product we operate ourselves. In the last 90 days it completed 1,794 operations and picked up 29 signups, with no paid marketing. That is small. It is also real, and you can check it.

Every engagement has one accountable lead, with vetted senior engineers doing the delivery under that lead's review. You keep your repo and your credentials the whole way through.

FAQ

Questions people ask first

Make the scary app boring

Start with thirty minutes and one written page. If a deeper look makes sense, we will say so. If it does not, we will say that too.