Expanding Content Formats Substack's recent launches of audio-only livestreams and TikTok-like video feeds demonstrate their focus on diversifying content formats, providing opportunities to offer multimedia monetization tools and integrations for content creators seeking new revenue streams.

In-App Purchase Growth The rollout of in-app purchases for iOS indicates a potential for upselling premium subscription features and advertising options within the platform, appealing to creators aiming to maximize earnings through more seamless payment experiences.

Creator Incentives With the $20 million Creator Accelerator Fund, Substack actively attracts high-value creators from competitors, presenting a sales opportunity to offer tailored support, premium tools, or partnership programs to these premium content producers.

Platform Partnerships Collaborations like those with Polymarket suggest a growing ecosystem of embedded predictive analytics and data integrations, providing a pathway to propose customized B2B solutions that enhance content engagement and analytics capabilities.

Competitive Expansion Substack's aggressive feature rollouts and ecosystem growth indicate a strong market position that could be leveraged to pitch enterprise-level or premium platform solutions to publishers and media companies seeking to expand or modernize their digital offerings.