The teaching layer for any AI coding agent

Stop being a fraud.

You vibecode. You ship. But can you explain any of it? Contral teaches you while you build. Not after.

Contral: #1 Product of the Week in Education on Product Hunt

200+ developers already building with Contral

This is a representational preview. The real thing will blow your mind

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CONTRAL: AGENT
3 context sources active

Contral Agent

Build, debug, refactor, or explain code.

Select a model above, then start chatting.

0/250 msgs
0 0 0| CollaborateBuild ModeIndexing completed.
Java: Lightweight Mode

This preview is interactive. Click any word to learn it, or switch between Build and Learn. The extension brings the same experience to your editor.

What makes it different

You get taught while building. Not after.

Most AI tools stop at the code. Contral explains what your agent writes while it writes it, then gives you a structured path to learn the rest.

01Build mode

AI writes the code. You learn while it does.

A full-powered agent writes code at vibecoding speed. The teaching layer explains every line, pattern and decision as it happens, in the same window.

Repo-aware agent
Reads, writes and runs your full codebase.
Learning cards
What the code does, why it was written that way, and your goal.
Four agent modes
Plan, Fast, Deep and Recursive. Plan mode proposes before it writes.
You stay in charge
Approve or skip every file write. Commands wait for your OK.

02Any AI agent

Keep your agent. Add the teacher.

Already ship with Cursor, Copilot or Claude Code? The Contral extension watches the edits your agent makes and, within seconds, explains the why behind each change.

Works with your stack
Cursor, Copilot, Claude Code, Codex CLI, Cline, Kilo Code, Aider, Continue, Windsurf, Antigravity.
Multi-file walkthroughs
When an agent touches several files, Contral takes you through each one in order.
Teach me this selection
Right-click any code for a line-by-line explanation, with follow-up questions.

03Learn mode

Zero to mastery. Java first.

A structured curriculum inside the IDE, with challenges, projects and boss exams. Java is available now, and more languages are coming based on demand.

49+ Java topics
Prerequisite-locked, so each topic builds on the last.
Hint economy
Earn hints by completing topics. Spend them when you are stuck.
Graded checkpoints
Project-graded challenges, plus boss exams that unlock as you progress.
Deep dives
Go deeper on any concept, on demand.

The Contral loop

AI speed. Real understanding.

You keep the speed of an AI agent, and you walk away able to explain what shipped.

  1. 01

    Build

    Prompt. The AI reads your repo, writes code and runs commands. Full vibecoding speed, inside your IDE.

  2. 02

    Learn

    While it builds, Contral teaches. Every line, every choice, every tradeoff, in real time.

  3. 03

    Prove

    Micro-challenges and defense drills. Can you explain what was just built? Prove it.

Repeat until mastery

Live on AppSumoComing to AppSumo Monday, October 13

Pay once. Keep Contral for life.

The Contral lifetime deal is live on AppSumo. Pick a tier, pay once from $79, and skip the monthly bill.On Monday, October 13, Contral launches on AppSumo as a one-time purchase from $79. Here is exactly what each tier includes.

  • One payment, no subscription
  • 60-day refund through AppSumo
  • Change tiers any time on AppSumo
  • Works in the extension and the desktop IDE
  • Tier 1

    Pro

    $79one-time

    • 500 AI messages per day
    • 10 Deep dives per day
    • 5 Codebase analyses per month
    • 500 Extension web searches per month
    • 50 Sessions
    Get Tier 1See Tier 1 on AppSumo (opens AppSumo in a new tab)
  • Tier 2

    Pro

    $139one-time

    • 1,000 AI messages per day
    • 20 Deep dives per day
    • 10 Codebase analyses per month
    • 1,500 Extension web searches per month
    • 100 Sessions
    Get Tier 2See Tier 2 on AppSumo (opens AppSumo in a new tab)
  • Tier 3

    Pro+

    $299one-time

    • Unlimited AI messages per day
    • 200 Deep dives per day
    • 100 Codebase analyses per month
    • 7,500 Extension web searches per month
    • 200 Sessions
    • Completion certificates included
    • Premium model access included
    • Priority inference speed included
    Get Tier 3See Tier 3 on AppSumo (opens AppSumo in a new tab)

Included in every tier

  • All topics and languages
  • Unlimited code explanations
  • Plan and Deep modes
  • Unlimited codebase chat
  • Unlimited BYOK messages
  • Auto-fix included

New to AppSumo? This code takes 10% off at checkout. New AppSumo customers only.

How activation works

Built different

Speed is great. Until you have to explain it.

Vibecoding gets the feature out the door. Contral makes sure you can stand behind it afterwards.

Typical vibecoding compared with Contral
Writing codeTypical vibecoding: AI writes code, you copy, paste and pray.With Contral: AI writes code and teaches you every step.
InterviewsTypical vibecoding: You can't explain your own codebase.With Contral: You can defend every architectural decision.
DebuggingTypical vibecoding: Asking the AI to fix its own mess.With Contral: You debug because you understand the system.
ShippingTypical vibecoding: You shipped it. But you don't own it.With Contral: You shipped it. And you can explain every line.

Demo

See Contral in action.

The Contral extension at work: the agent writes the code, and Contral explains every change as it lands.

From developers

What developers say.

Real feedback from Product Hunt, Reddit, Discord and our beta testers.

“Honestly this sounds way more useful than most AI coding tools because you’re solving the actual problem: people don’t learn anything when AI just spits out code they don’t understand. The real-time explanation while building is smart, most devs just copy paste and move on without getting why something works.”
Extra-Motor-8227Top 1% PosterReddit
“Contral picks up on what you are building and makes suggestions that fit the existing codebase. It’s genuinely useful for repetitive coding tasks and helps you ship quickly without a large team. The contextual awareness sets it apart from other tools.”
JeroenFounder, CompleteAiTraining.comProduct Hunt
“Honestly the problem is real, I’ve watched 3 devs on my team ship AI code they couldn’t debug 2 days later. Good luck with the launch.”
Comfortable-Lab-378DeveloperReddit
“After finding out Cursor is crap, some Google searching and here. If you can use AI correctly it’s useful and all that but reality is we are basically losing our mind... I wanna know what this opus4.6 is doing and why it’s coding in a certain way. Not after.”
OwnmakerDeveloperDiscord
“This is a super good idea. As someone that works in tech as an engineer and building my own app, this is a problem a lot of us have.”
intakall_aiSoftware EngineerReddit
“It’s working perfectly just a few bits of polishing.”
Awena Bachu FarouqBeta TesterFeedback

FAQ

Questions, answered.

Can't find what you need? The docs go deeper, and the team answers on Discord.

Live on AppSumoFree to start

Ship fast. Understand every line.

The IDE that teaches while you build, and the extension that brings the same teaching layer to the editor you already use.

One-time payment on AppSumo, refundable within 60 days. Or start free, no credit card.Free to start. No credit card required.

If this made you uncomfortable, you're exactly who this is for.