Case Study: Testbook achieves viral email growth and app downloads with Blitz Rocket

Testbook - Customer Case Study

Testbook, an EdTech platform that helps students prepare for 100+ government exams, needed a fast way to grow its email list, app installs, and social community while building buzz around a new subscription offering. Blitz Rocket supported the campaign using a referral contest approach powered by VYPER, along with the brand’s own landing page and promotional channels.

Blitz Rocket’s solution encouraged participants to earn points through referrals and bonus actions like app downloads, follows, shares, and social engagement, while also leveraging email, Instagram, TikTok, and influencers to spread the campaign. The results were strong: the campaign reached 325,007 pageviews, converted at 18%, generated 57,873 new email leads, 7,035 app downloads, and 27,920 social followers and shares, with 50% of participants referring at least one person.

Testbook

Neernidhi Samtani

Entrepreneur-in-Residence