Best Services to Read Substack on Kindle
Substack doesn't have native Kindle support. Here are the best services to bridge that gap.
Quick Comparison
Detailed Reviews
1. InboxToKindle - Best for Newsletter-Only Users
RECOMMENDEDInboxToKindle is purpose-built for newsletters. It offers the simplest setup, anonymous inbox for privacy, and optimized EPUB conversion specifically for newsletter formatting.
Pros: Anonymous inbox, newsletter-optimized, simple setup, 15 free/month
Cons: No web article support
Price: Free / $10/month
2. KTool - Best for Mixed Content
KTool is the Swiss Army knife of Kindle apps. It handles newsletters, web articles, and RSS feeds. Great if you want everything in one place.
Pros: Web articles, RSS feeds, browser extension, feature-rich
Cons: More complex, not newsletter-focused
Price: $5/month
3. NewsletterToKindle.com - Best Established Service
One of the longest-running services. Reliable and straightforward, though lacks some modern features like anonymous inboxes.
Pros: Long track record, 15 free/month, reliable
Cons: No anonymous inbox, basic formatting
Price: $5/month
4. Push to Kindle - Best for Web Articles
If you primarily want to save web articles to Kindle, Push to Kindle is excellent. Not ideal for newsletters but great for article reading.
Pros: Excellent for articles, browser extensions, cheap
Cons: Not designed for newsletters, manual pushing
Price: $3/month
How to Choose
Choose InboxToKindle if:
- You only want newsletters on Kindle
- You value privacy (anonymous inbox)
- You want the simplest setup
- You read 15 or fewer newsletters per month (free tier)
Choose KTool if:
- You want web articles AND newsletters
- You need RSS feed support
- You want browser extensions