# How many onboarding quizzes ask demographic questions like age or gender?

Source: Lazyweb Research
Published: 2026-07-07
Sample size: n=119
Tags: onboarding, signup, ux-patterns, mobile, experiments
HTML: https://www.lazyweb.com/research/how-many-apps-ask-demographic-question-onboarding
Markdown: https://www.lazyweb.com/research/how-many-apps-ask-demographic-question-onboarding.md

**Answer.** 24 of 119 quiz apps ask a demographic question — age, gender, weight, height, or date of birth — tied with goal questions as the most common quiz type.[1] Demographics are worth asking only when they change the plan, as in fitness and medical apps. Don't collect age or gender for its own sake; each field is a drop-off risk.

> 24 of 119 quiz apps ask a demographic question (age, gender, weight, height) — Lazyweb Research, July 2026.

## The finding

Demographic questions appear in 24 of 119 quiz apps, tied with goal questions (24) and just above habit questions (23).[1][2] The demographic set covers age, gender, weight, height, and date of birth — fields that materially change a fitness, nutrition, or medical plan.

This question type concentrates in Health & Fitness, which is both the largest quiz category and the deepest-quiz vertical (avg 6.2 screens).[3] In those apps, weight and height aren't vanity fields — they feed calorie targets and program calibration.

## How to apply it

Ask a demographic question only when the answer changes something the user will see. Weight and height in a fitness app pass that test; age in a generic productivity app usually doesn't.

Because demographics feel personal, place them after the goal question so the user already understands why you're asking. A goal-first order gives the demographic fields a rationale and reduces abandonment.

## Caveats

The count is deduped by company from vision descriptions and is a lower bound — a demographic screen counts only when the vision text names age, gender, weight, height, or DOB.[1] Apps that collect demographics via native pickers the vision model didn't describe will be missed, so true adoption is likely higher.

## The numbers

| Stat | Computed from |
| --- | --- |
| 24 of 119 quiz apps ask a demographic question | question_type_demographic |
| 24 goal, 23 habit for comparison | question_type_goal; question_type_habit |
| H&F largest quiz category, avg 6.2 screens | quiz_apps_by_category; quiz_length_health_fitness |

## Methodology

Universe: 119 quiz apps in the Lazyweb vision corpus. Method: regex over vision_description for demographic fields, deduped by company, July 2026. Caveat: lower bound; native pickers not described by the vision model are missed.

## Sources & citations

- [1] Lazyweb Research analysis of 119 apps (Lazyweb onboarding-quiz corpus), July 2026. 24 quiz apps ask a demographic question (age, gender, weight, height, DOB); lower bound.
- [2] Lazyweb Research analysis of 119 apps (Lazyweb onboarding-quiz corpus), July 2026. Goal 24, habit 23 for comparison.
- [3] Lazyweb Research analysis of 24 apps (Lazyweb Health & Fitness quiz corpus), July 2026. H&F is the largest quiz category and deepest vertical (avg 6.2 screens); demographics concentrate here.

## Related questions

- [What questions do apps ask in an onboarding quiz before the paywall?](https://www.lazyweb.com/research/what-questions-apps-ask-before-paywall)
- [How many onboarding quizzes ask a goal or objective question?](https://www.lazyweb.com/research/how-many-apps-ask-goal-question-onboarding)
- [How many onboarding quizzes ask habit or frequency questions?](https://www.lazyweb.com/research/how-many-apps-ask-habit-question-onboarding)
- [How many quiz questions do Health & Fitness apps ask during onboarding?](https://www.lazyweb.com/research/how-many-quiz-questions-health-fitness-apps)