How much does zuzu.codes cost?

The starter track is free — read all lessons and practice for free. Full access to every track (current and future) is $14.99/month. Cancel anytime.

How long does each track take?

Each track is designed as a 30-day challenge — one lesson per day, about 15 minutes each. Go at your own pace, but the structure is built around daily consistency.

What's the lesson format?

Each lesson is a student-teacher dialogue with code examples, followed by a hands-on code challenge in an in-browser editor. You read, you understand, then you write real code.

Do I need prior coding experience?

Our beginner track starts from absolute zero — no prior experience needed. Advanced tracks build on earlier ones, and the platform tells you exactly where to start.

How is zuzu.codes different from freeCodeCamp or Codecademy?

zuzu.codes uses a structured 30-day track format with dialogue-based teaching, an in-browser code editor, and gamification (XP, streaks, progress tracking). The format builds genuine understanding through daily practice.

Day 15 · ~11 min●

Six lessons on writes — send, create, append, update, plus the idempotency mindset and the dedup pattern. Eight questions, 80% pass.

Week 3 is composition: chaining reads and writes into small, reliable workflows.

What week 2 covered

Lesson	Concept
8	`GMAIL_SEND_EMAIL` — first true side effect; verify by inbox search with retry
9	`GOOGLECALENDAR_CREATE_EVENT` — server-assigned ID returned in response
10	`GOOGLESHEETS_VALUES_APPEND` — list-shaped writes; `values` is rows-of-cells
11	`GOOGLECALENDAR_UPDATE_EVENT` — needs prior ID; full update overwrites omitted fields
12	Idempotency — predict whether a script's effect doubles on re-run
13	Dedup keys — `set()` + `continue` to skip already-processed items

Week 3 builds the smallest end-to-end workflows from these primitives.

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Day 15 · ~11 min●

Six lessons on writes — send, create, append, update, plus the idempotency mindset and the dedup pattern. Eight questions, 80% pass.

Week 3 is composition: chaining reads and writes into small, reliable workflows.

What week 2 covered

Lesson	Concept
8	`GMAIL_SEND_EMAIL` — first true side effect; verify by inbox search with retry
9	`GOOGLECALENDAR_CREATE_EVENT` — server-assigned ID returned in response
10	`GOOGLESHEETS_VALUES_APPEND` — list-shaped writes; `values` is rows-of-cells
11	`GOOGLECALENDAR_UPDATE_EVENT` — needs prior ID; full update overwrites omitted fields
12	Idempotency — predict whether a script's effect doubles on re-run
13	Dedup keys — `set()` + `continue` to skip already-processed items

Week 3 builds the smallest end-to-end workflows from these primitives.

What week 2 covered

Lesson	Concept
8	`GMAIL_SEND_EMAIL` — first true side effect; verify by inbox search with retry
9	`GOOGLECALENDAR_CREATE_EVENT` — server-assigned ID returned in response
10	`GOOGLESHEETS_VALUES_APPEND` — list-shaped writes; `values` is rows-of-cells
11	`GOOGLECALENDAR_UPDATE_EVENT` — needs prior ID; full update overwrites omitted fields
12	Idempotency — predict whether a script's effect doubles on re-run
13	Dedup keys — `set()` + `continue` to skip already-processed items

Week 3 builds the smallest end-to-end workflows from these primitives.

What week 2 covered

Lesson	Concept
8	`GMAIL_SEND_EMAIL` — first true side effect; verify by inbox search with retry
9	`GOOGLECALENDAR_CREATE_EVENT` — server-assigned ID returned in response
10	`GOOGLESHEETS_VALUES_APPEND` — list-shaped writes; `values` is rows-of-cells
11	`GOOGLECALENDAR_UPDATE_EVENT` — needs prior ID; full update overwrites omitted fields
12	Idempotency — predict whether a script's effect doubles on re-run
13	Dedup keys — `set()` + `continue` to skip already-processed items

Week 3 builds the smallest end-to-end workflows from these primitives.