Callabash is an AI-powered content discovery platform that scans 30+ sources, matches content to your learning interests using vector embeddings, and delivers personalized email digests with multi-perspective insights.

Yes! The Free plan includes 1 topic and daily digests from 30+ sources. Upgrade to Pro ($9.99/mo) for unlimited topics and AI Lens analysis, or Scholar ($19.99/mo) for API access.

AI Lens analyzes articles through multiple expert perspectives — researcher, practitioner, skeptic, investor, educator, ethicist, and futurist — giving you a multi-dimensional understanding of any content.

What sources does Callabash scan?

Callabash scans 30+ curated sources including arXiv, Hacker News, TechCrunch, Nature, IEEE Spectrum, Harvard Business Review, AI lab blogs (OpenAI, Anthropic, Google AI, DeepMind, Meta AI), and more. Pro and Scholar users can also add custom RSS feeds.

How does content matching work?

Callabash uses vector embeddings to understand the semantic meaning of your topics and match them against incoming content. This goes beyond simple keyword matching to find truly relevant articles based on conceptual similarity.

Callabash

Simple, transparent pricing

Name: Callabash
Brand: Callabash
Availability: InStock

Start free. Upgrade when you're ready to unlock your full learning potential.

Monthly Annual

Free

Perfect for getting started

$0 /month

1 topic
Weekly digests only
3 articles per digest
AI-powered summaries
30+ curated sources

Get Started

Pro

For serious learners

$6 /month

5 topics
Daily & weekly digests
5–7 articles per digest
Knowledge Pulse analytics
Custom RSS feeds
Priority support

Start Pro — $6/mo

Scholar

For power users & teams

$12 /month

Unlimited topics
Daily & weekly digests
Up to 10 articles per digest
Everything in Pro
Unlimited digests per topic
API access

Start Scholar — $12/mo

Compare plans

Feature	Free	Pro	Scholar
Topics	1	5	Unlimited
Digest frequency	Weekly	Daily + Weekly	Daily + Weekly
Articles per digest	3	5–7	Up to 10
Digests per topic	10	100	Unlimited
AI summaries & insights	Included	Included	Included
Custom RSS feeds	Not included	Included	Included
Knowledge Pulse™	Not included	Included	Included
Priority support	Not included	Included	Included
API access	Not included	Not included	Included

Frequently asked questions

Can I cancel anytime?

Yes! You can cancel your subscription at any time. You'll keep your current plan access until the end of your billing period.

What happens to my data if I downgrade?

Your data is never deleted. If you exceed free-tier limits, you'll still see your existing topics and digests but won't be able to create new ones beyond the free limits.

Can I upgrade from Pro to Scholar later?

Absolutely! You can upgrade, downgrade, or switch plans at any time through the billing portal. Changes are prorated automatically.

Do you offer refunds?

If you're not satisfied within the first 14 days, contact us and we'll issue a full refund. No questions asked.

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