AI-built app glossary · 30 terms · Updated Oct 2026

AI-built app glossary: 30 terms owners keep hearing, in plain English.

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Quick answerAs of Oct 2026

This glossary defines 30 terms business owners meet when an app built with AI tools needs fixing, from Fix Forward Labs. It includes our own terms: the 4F Method, shadow app, prompt patching, the last 20% and App Risk Score. It also covers the tools (Lovable, Bolt, Replit, Supabase) and the security words owners hear most. Updated October 2026.

Our terms

4F Method

Our term

Fix Forward Labs’ four-phase process for rescuing AI-built business apps: Freeze, Find, Fix and Forward.

Term coined by Fix Forward Labs.

Shadow app

Our term

A business tool built with AI outside any IT process, which the company now depends on.

Term coined by Fix Forward Labs.

Prompt patching

Our term

Fixing an AI-built app by asking the AI again, which tends to create new bugs.

Term coined by Fix Forward Labs.

The last 20%

Our term

The logins, permissions, payments, backups and monitoring AI app builders skip.

Term coined by Fix Forward Labs.

App Risk Score

Our term

The 0 to 100 score from Fix Forward Labs’ free 15-question self-assessment of an AI-built app.

Term coined by Fix Forward Labs.

Everyone else’s terms

AI app builder

Tool

A tool that turns written instructions into a working app, such as Lovable, Bolt, Replit, Base44 or v0.

API key

Security

A secret password one system uses to talk to another, such as your app to Stripe. If exposed, others can use it.

Authentication

Security

Checking who a user is: real logins, passwords, password reset.

Backup and restore

Security

A saved copy of your data, and a tested way to put it back after a mistake or failure.

Base44

Tool

An AI app builder for internal tools and simple business apps, with hosting and a database included.

Bolt

Tool

An AI app builder (Bolt.new) that creates and hosts web apps in the browser from chat instructions.

Cursor

Tool

A code editor with built-in AI that writes and changes code for developers.

Deploy

Tool

Releasing a change to the live app. A safe deploy can be undone in minutes.

Exposed key

Security

A secret key visible in the app’s code or browser, where anyone who looks can copy it.

HIPAA

Security

The US law that sets rules for storing and sharing patient health information.

Lovable

Tool

An AI app builder that creates web apps from chat instructions, usually with a Supabase database behind them.

Monitoring

Security

Automatic checks that alert your team when the app breaks or slows, before customers notice.

PCI DSS

Security

The card industry’s security rules for any business that stores, processes or sends card data.

Permissions

Security

Rules for what each logged-in user is allowed to see and do.

Replit

Tool

An online coding platform with an AI agent that builds, runs and hosts apps.

Repository (repo)

Tool

The online folder that holds an app’s code and its change history, usually on GitHub.

Row-level security (RLS)

Security

Database rules that decide which records each user can read or change. Missing rules can expose every record.

Runbook

Tool

A plain-English manual for an app: each system, where it lives, who has access, what to do if it breaks.

Security questionnaire

Security

A list of questions clients, insurers or auditors send to check how you protect their data.

Staging

Tool

A private copy of the app where changes are tested before real users see them.

Supabase

Tool

A hosted database and login service used behind many AI-built apps.

Technical debt

Money

Shortcuts in software that make every later change slower or riskier.

v0

Tool

Vercel’s AI tool that generates website and app screens from instructions.

Vendor lock-in

Money

When leaving a tool or provider is so costly that you are stuck with its prices and limits.

Vibe coding

Tool

Building software by describing what you want to an AI tool and accepting what it writes, often without reading the code.

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