Ali Demirbaş - Lab
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Mobile App

Testing a Permission Priming Screen Before the Prompt

An explanation before the system prompt may help users decide whether permission is worthwhile.

  • Mobile app
  • Net permission grant rate

Control vs Variant

Absent on one side, present on the other.

Changed
Presence
Page
Mobile app
Difference
added

Hypothesis

It also adds a step where users may defer or leave. A higher acceptance rate among users who reach the system prompt may reflect selection; assess the flow by permission grants among all assigned users.

How to run this test

Primary metric

Net permission grant rate

Compare permissions granted per eligible assigned user over the same follow-up period.

Other metrics

  • System prompt acceptance rateCheck acceptance among users who reach the prompt.
  • Pre-prompt continuation rateIdentify drop-off at the explanatory step, which appears only in the variant.
  • Permission denial rateUse the platform's available status information; do not assume every denial is permanent.
  • Seven-day retentionMake sure retention does not fall.

What to check before and during the test

  • ExplanationAdd one fixed explanation before the existing system permission prompt.
  • TriggerKeep eligibility and the permission trigger unchanged.
  • Drop-offInclude visitors who defer or leave before the system prompt.
  • DeferralPredefine the “Not now” path and later re-prompt policy.
  • ExperienceReview eligible new and experienced users separately.

Setup mistakes to avoid

  1. 1Do not make the pre-prompt look like the system prompt or mislead visitors.
  2. 2Do not block continuation until permission is granted.
  3. 3Do not change the pre-prompt and permission timing together.
  4. 4Do not treat system-prompt acceptance alone as success; check total grants.
  5. 5Check platform rules before publishing a variant where permission copy can be customized.