Quibr is an AI social media agent for newsletter creators. When a new edition goes out, it writes posts for X, LinkedIn, Threads and Facebook from it, in your own voice, spreads them across the week and publishes them. Approve every post, step in during an approval window, or let it run on its own. Works with beehiiv, Substack, Ghost, Kit, Mailchimp and any RSS feed. $29 a month, with a seven-day free trial. Formerly Letterly.
InboxReads Pro gives you access to a database of 6000+ email newsletters for outreach, cross-promotions, and sponsorship opportunities. You get access to newsletter subscriber counts, open & click rates, growth charts, issue counts, launch dates, topic popularity, and more. Plus direct messaging to newsletter creators to set up partnerships.
Price Comparison
Quibr costs $29/month for unlimited users.
InboxReads Pro starts at $7/month for up to 1 user. Pricing can go up to $53/month for up to 5 users.
Feature Comparison
Quibr and InboxReads Pro both have great feature sets so the right tool for you really depends on your needs.
| Features | Quibr | InboxReads Pro |
|---|---|---|
| 🏪 Marketplace List your newsletter to connect with sponsors | ❌ | ❌ |
| 💻 Programmatic Ads Automatically add advertisers | ❌ | ❌ |
| 📁 Sponsorship Management Manage your ad slots and inventory | ❌ | ❌ |
| 📑 Market Research Find potential sponsors and contact them | ❌ | ✅ |
| 💬 Messaging Message other users directly on the platform | ❌ | ❌ |
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