Your newsletter built the audience. Circle helps you build the business.

Yes. Circle’s Email Hub handles broadcasts, newsletters, and automated sequences natively.

The meaningful difference is what can trigger your emails. Substack’s automated sequences are rolling out to select Bestsellers only as of early 2026 — they’re not available to all creators, and the triggers are limited to new subscriber, upgrade, and cancellation events.

Circle triggers emails based on community joins, event attendance, course progress, and member behavior. If your email strategy is about keeping members engaged rather than just broadcasting content, that behavioral data is what makes it work.

Yes. Circle includes a free native mobile and desktop app on every plan.

The key difference is whose brand members see when they open it. Substack’s app shows your content alongside every other Substack publication on the platform — members are browsing a newsstand, not visiting your community.

Circle’s app is your community. Members get push notifications for activity in your specific spaces and see your brand, not Circle’s, front and centre.

As your community grows, you can upgrade to a fully-branded iOS and Android app with your own icon, name, and app store listing.

We’ll work with you to migrate your content, email list, payments, and more to ensure minimal churn. Because Circle delivers a meaningful upgrade in terms of user experience and your value proposition to members, you’ll soon see membership, engagement, and revenue growth.

Yes. Many creators keep Substack live during the migration period to ensure a smooth transition. Before sunsetting Substack, it’s best practice to:

• Clearly communicate with your members about the move
• Set a specific cutover date
• Offer existing members an easy path to join your Circle