Substack vs Swell AI
Side-by-side comparison of Substack and Swell AI.
Newsletter publishing and monetization in one place
Turns podcast audio into written content automatically
What they are
Substack
Substack is a publishing platform where writers host email newsletters and charge subscribers a recurring fee. Independent journalists, essayists, and niche experts use it to build direct audiences without relying on ad revenue. The platform handles payments, delivery, and a basic website automatically. Substack takes a 10% cut of paid subscription revenue on top of stripe fees, which becomes a real cost as an audience grows.
Swell AI
Swell AI ingests podcast episodes, YouTube videos, or audio files and generates transcripts, show notes, blog posts, social clips, and newsletters from a single upload. It targets podcasters and video creators who want to repurpose content without hiring a writer. The output quality is solid for first drafts but typically needs editing before publishing. A free tier exists with limited monthly credits.
if you need hosting and monetization. It has a usable free tier to start with.
- +Free to start with no upfront cost
- +Built-in payment processing removes the need for a separate tool
- +Readers can comment and respond, creating light community features
if you need transcription and ai writing. It has a usable free tier to start with.
- +Handles the full repurposing workflow in one place rather than stitching together separate tools
- +Transcript accuracy is competitive with dedicated transcription services
- +Generates multiple content formats from a single upload
Which to choose
Substack and Swell AI solve different problems, so most people would not choose between them directly. The comparison below helps if you are weighing where to spend budget, or deciding whether you need both.
Read the full reviews for Substack and Swell AI.
Pricing checked 3 Jun 2026.