Sponsor comparison
Metalab vs HelloIris
Newsletter sponsorship activity, audience reach, and ad formats — side by side.
Sponsorship breakdown
Category
Metalab
HelloIris
Industry
Mental Health
Mental Health
Newsletter
Brain Food
325K subscribers
Dense Discovery
31K subscribers
Audience reach
325K subs
31K subs
Ad format
Newsletter Sponsor
Newsletter Sponsor
Last recorded
October 2020
August 2020
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