CogDojo
Speed

Bolt

Tap the equation that equals the target — fast, before the bar runs out.

Play in the appAll 48 games
Speed · Arithmetic Fluency
Cognitive skill

Speed

Session length

2–3 minutes

Difficulty

Easy start

What it trains

The skills behind Bolt

  • Arithmetic Fluency

  • Parallel Evaluation

  • Processing Speed

What it measures

How Bolt feeds your trends

Every session contributes to your Speed rating, which rolls into your Brain Fitness Index — a single 0–100 score across all six skills. Difficulty adapts to you, so Bolt stays in your stretch zone, and you can review how it trends over time on the web dashboard.

CogDojo measures and motivates your training. It is not a medical product and does not diagnose, treat, or prevent any condition.
More Speed games

Play Bolt in the CogDojo app

Quick 2–3 minutes sessions on your phone. Watch your Speed trend take shape — free to start.

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