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Spaced Repetition10 Min/DayFree to Start

Practice Coding Fundamentals in the AI Age

AI writes your code. Spaced repetition makes sure you still understand it.

Short daily drills that adapt to what you forget. Keep your syntax fluency sharp so you can review, debug, and modify AI-generated code with confidence.

The Cost of Letting AI Handle the Syntax

When autocomplete finishes every line, you stop rehearsing the patterns that make code readable at a glance. Six months of heavy AI assistance and the fundamentals start to feel unfamiliar — not gone, but slow. You pause on things that used to be automatic.

Code review takes longer because you're re-learning syntax instead of evaluating logic. Debugging stalls because you can't tell whether the AI produced an idiomatic pattern or a subtle antipattern. Whiteboard interviews expose gaps that didn't exist before you started relying on AI completions.

You don't need to stop using AI tools. You need to practice the fundamentals they're replacing. Spaced repetition resurfaces the syntax you're forgetting before it disappears.

What the Data Shows

Why Vibe Coding Slows Down Experienced Developers

A data-backed look at how AI coding dependency erodes the syntax fluency that makes experienced developers effective, and what the research actually shows.

Read More

Choose Your Language

10 free exercises a day. Syntax drills that adapt to what you forget.

Python

Variables, loops, comprehensions, functions, classes, and more

JavaScript

ES6+, async/await, destructuring, closures, promises

Rust

Ownership, borrowing, pattern matching, traits, lifetimes

How Spaced Repetition Works

SyntaxCache uses the FSRS algorithm to schedule reviews right before you'd forget. Short sessions, compounding retention.

Learn about our method

Build Syntax Muscle Memory

Stop second-guessing syntax you used to know by heart. Daily drills rebuild the fluency that AI tools quietly erode.

Free forever. No credit card required.

Syntax Cache

Build syntax muscle memory with spaced repetition.

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