What "adaptive" should mean in a reasoning practice app

#product

Most apps that say adaptive just mean a streak counter and a harder level after three greens.

I shipped IntelligenceMax on the App Store with a narrower definition.

Adaptive as serving, not as a vibe

After each answer, the app updates a practice estimate and uses that to choose later item difficulty. Explanations appear after submit, not before. That is the loop: miss → see why → get something near that edge again.

What the score is not

The estimate uses an IRT-shaped update and can be shown on an IQ-looking scale for readability. It is still an in-app practice metric. It is not a normed clinical IQ battery, and shipping to the App Store does not change that.

Why builders should care about the claim size

App Store categories reward big cognitive verbs. Independent reviews of commercial brain training are usually clearer about near transfer than about far transfer. If your product only proves "people get better at your items," say that. Do not let the marketing department invent adult g.