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What an app check covers

An app check is an engineer reading the app your AI tools wrote, ranking what will break and writing the fix for each problem. Here is every area it covers, how the five days run and what you keep at the end

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The short answer

What an app check covers

An app check is a fixed-scope review of an app built with AI tools. An engineer reads the code and the live app, checks the seven places these apps usually fail (rate limits, who can read what, duplicate charges, secrets and keys, sign-in, backups and logging), ranks what will break worst first and writes the fix for each problem. At Blinkz it takes five business days and ends with a signed report you keep.

How long does an app check take?

Five business days at Blinkz, counted from the day you share the code and the live app

Do I have to hire you for the fixes?

No. You keep the report whether or not we do the fixes, and each fix is written so any developer can act on it

Will my app be hack proof afterwards?

No one can honestly certify an app as hack proof, and it is worth being careful of anyone who offers to. You will know exactly what was checked, what was found and how to fix it

What do I need to give you?

Access to the code and the live app. You do not need to know anything technical, because everything in the report is written in plain English

Is an AI security scan the same thing?

No. A scan is a useful first pass, but it cannot see how your app is deployed or how people actually use it, so it hands you a long list that a person still has to rank. An app check is that person

The Blinkz team · Updated

What is an app check?

An app check is an engineer reading an app that was built with AI tools, no-code or a fast freelancer, and telling you what will break before your users find it. It has a fixed scope: the same seven areas every time, the same five days, and the same report at the end.

It exists because AI can write an app that works in a demo and still fails the first week real people use it. The code usually runs. The problems sit in the places nobody asked the AI to think about.

What does an app check look at?

These are the seven areas, in plain English. The first three each have a free episode in our AI Code Fixes series if you want to see what the problem looks like.

  1. Rate limits. One bot should not be able to hammer your app and run up the bill. See how this one breaks.
  2. Who can read what. Signed-in users should only ever see their own data. See how this one breaks.
  3. Duplicates. A double tap should never charge or book anyone twice. See how this one breaks.
  4. Secrets and keys. Payment and API keys stay on the server and never end up in the page.
  5. Sign-in. Sign-in, password resets and sessions work the way they should.
  6. Backups. If data gets lost, you can actually get it back.
  7. Logging. When something breaks, there is a record of what happened.

How do the five days run?

  • Access. You share the code and the live app.
  • Read. We read every line the AI wrote.
  • Rank. We rank what will break, worst first, by what it would cost you.
  • Fix. We write the fix for each problem.
  • Sign. An engineer signs the report and hands it over.

What do you get at the end?

  • A ranked list of what will break, in plain English.
  • The fix for each problem, written so any developer can apply it.
  • A signed report you can share with investors, a cofounder or the next developer.

You keep the report whether or not we do the fixes.

Who is an app check for?

It is for apps that are live or about to be, where users, revenue, investors or a launch date depend on it, and where nobody technical answers for the code today. It is not for hobby projects. Those are what the free fixes are for.

What does an app check not do?

It does not certify the app as hack proof, because nobody can honestly do that. It does not rebuild the app, and it does not change your code on its own. If the report shows the app needs real work, that is a separate job with its own scope, which we call build or rescue. If you want someone to keep watching the app after the fixes go in, that is on call.

If your app is live and you are not sure you would bet the business on it, start with an app check.

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