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2️⃣ Visual 2-Back Lite — Letter Identity

Letters appear one by one. Tap Match if the letter is the same as two trials ago. Original 2-back — not a dual n-back product and not an IQ.

IQ Test › Brain Tests & Games › Visual 2-Back Lite — Letter Identity
Watch the stream. Match = same as 2 back. About 24 trials after two primers.
How it works

Watch the stream. Match = same as 2 back. About 24 trials after two primers. N-back updating is a working-memory toy. This lite is not a clinical IQ or a brain-training claim.

🔁 N-Back Test (Working Memory Updating)📍 Spatial 2-Back Lite — Grid Position Only🧩 Dual N-Back Lite — Letter + Position🏃 Running Span Lite — Last Three Digits
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📅 Last updated: 2026-08-27 · ✔ Reviewed by the All-Lifes editorial team · About · Methodology
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