AQS is a 1-100 metric, a benchmark to measure your overall quality in the influencer marketing industry.
It's not recommended to look at AQS level only while picking an influencer for your next advertising campaign. Influencers with AQS '100' are most likely to have a high-quality audience though. The ones with AQS '20' belong to a low quality group of influencers who don't have any impact on the level of sales anyway. AQS is distributed consistently, it's a rare case to spot some boundary value here.
AQS is the result of 15 metrics which are split into 4 key categories:
Engagement Rate (ER) (% of followers who are engaged with the influencer’s content),
Active Audience Type (% of real people among influencer's followers),
Growth (abnormal activities detected in Followers & Followings graphs),
Comments Authenticity (% of recent comments which come from accounts that don't participate in Engagement Pods.)
AQS is a high level score, thus to get a bigger picture we advise to look into a HypeAuditor report metrics on a deep level.