Now in beta

Bug finding & fixing for Lovable and Base44 appsOne URL.
Bugs found.
Bugs fixed.

Built your app with AI but not sure it actually works? Kybr clicks through it like a real user, finds what's broken, and sends back the fix. No coding. No test setup. Just your URL.

Get started free → Book a call

Works with apps built on

Why Kybr

Anyone can build now.
But shipping safely is different.

Tools like Lovable and Base44 let anyone build an app — no coding required.
But "it works" and "I can ship it confidently" are two different things.
Kybr was built to close that gap.

Problem 01

My app broke after I published it

It looked fine in the preview. Then real users hit a broken sign-up or checkout. You had no way to check before going live.

"I just want someone to tell me it's actually working."

Problem 02

I don't know how to test my app

You're not an engineer. Writing tests isn't something you've ever done. So bugs pile up until users find them first.

"I know I should test, but I have no idea where to start."

Problem 03

Stuck in a fix loop, burning credits

Ask Lovable or Base44 to fix a bug and something else breaks. Prompt after prompt, your credits disappear. Without the root cause, AI just patches symptoms.

"Fixed one thing, broke another. Back to square one."

What Kybr does

4 features. Every stage covered.

Find bugs and fix them — and prevent the next one from ever shipping.

Feature 01

Fix

Fix bugs

Tell us what's broken. We find the real cause and send back the corrected code. No more prompting in circles.

Try Fix →
Coming soon

Feature 02

Coach

Prevent bugs

Get prompts that prevent bugs from the very first message. Better prompts, more resilient code.

Feature 03

Detect

Find bugs

Paste your app's URL. Kybr clicks through login, profile updates, cart, checkout and more like a real user — and shows you what's broken.

Try Detect →

Feature 04

Scan

Quality & security

Automatically check performance, security vulnerabilities, and code quality. Ship with confidence.

How it works

From URL to fixed code.
All in one place.

  1. Drop your URL

    Paste your app URL. That's it. Takes under a minute.

    ~1 min

  2. Kybr tests your app

    We simulate real user flows and surface every bug hiding in your code.

    A few business days

  3. Register any bug

    One click to send a detected bug directly to Kybr Fix.

    One click

  4. Get the fixed code

    Receive the corrected code. Paste and ship — no prompts needed.

    Done
Run it every day

Run it daily.
Find new bugs every time.

Kybr uses AI to generate tests automatically — so every run checks different patterns. Run it not just before release or after updates, but every day to continuously surface bugs you never knew existed.

No test scripts. No setup. Just drop your URL.

Enter your URL

Paste your app URL. No setup required.

~1 min

Kybr auto-generates tests

AI builds and runs tests based on real user flows. No test scripts needed.

Automatic

Schedule daily checks

Set it once and Kybr runs automatically every day, checking new patterns each time.

Daily auto-run

Get notified when bugs are found

Instant alert when something breaks. Register any bug and get the fix back in one click.

Instant alert

Pricing

Simple pricing.

Special beta pricing — try it now and help shape the product.

🎉 90% OFF · Beta only
Early Access

Monthly plan

$10/mo

$100/mo

Beta pricing. Try it now and send us your feedback — we'd love to hear from you.

  • ✓
    Detect (daily automated bug detection)AI generates and runs tests automatically
  • +
    Fix (corrected code)Per-bug pricing, billed as you go
Get started now →

No credit card required

FAQ

Frequently asked questions

Does Kybr work with Lovable and Base44 apps?

Yes. Detect tests your app through its live URL, so it works with apps built on Lovable, Base44, Bolt, Replit, v0 and most other AI app builders. For Fix, just share your code — connect GitHub or upload your files — and we'll send back the corrected code.

Do I need to know how to code?

No. Just paste your URL and Kybr runs the tests. From the report you get afterward, you can request a fix for any bug — no need to track down the cause or fix it yourself.

Why does AI keep breaking my app when I ask it to fix a bug?

AI builders usually only see the symptom you describe, not the real cause. So each fix patches one spot and can break another, and you burn credits going in circles. Kybr Fix tracks down the root cause and sends back corrected code, so the bug stays fixed.

I've never tested an app. Where do I start?

Start with the things your users do every day: logging in, updating their profile, adding items to a cart and checking out. Kybr walks through each flow like a real user and marks it Working or Broken. Run it daily to catch new bugs before your users do.

How much does it cost?

During the beta, Kybr is $10/month (normally $100/month) and includes daily Detect runs. Fix is billed per bug, as you go. No credit card required to get started.

Is your app actually
ready to ship?

Paste your app's URL. Kybr finds the bugs and fixes them. No coding needed.

Get started free →