Short answer

Mailbrew lets you assemble a multi-source email Brew (often free). Dewey Follows your stack and lets you Ask later in chat.

Free wins morning bundling. Dewey wins Ask. Many people can use both.

Dewey landing page showing chat-native reading companion Mailbrew landing page showing email Brew builder

What each product is

Dewey (trydewey.ai): chat-native research companion. Follow newsletters, podcasts, YouTube, and X bookmarks. Send links. Ask your vault later in Telegram or iMessage.

Trial 7 days, then about 50¢/day on Personal (~$14.99/mo). Vault private, never shared, never used for training.

Mailbrew (mailbrew.com): multi-source email digest builder ("Brews"): newsletters, RSS, Twitter/X, Reddit, HN, YouTube, Readwise → one scheduled email. Acquired by Evernomic (Nov 2025). Free for most use; paid power tier. Core job is bundling, not cross-source AI Ask.

Side by side

Mailbrew Dewey
Primary job You assemble a multi-source email Brew Follow + Ask in chat
Surface Email Telegram and iMessage
Sources Broad (X/Reddit/HN/YouTube + pubs) Newsletters plus podcasts, YouTube, X bookmarks, sent links
You ask later? Digest is the product Ask over the vault is the product
Free $0 (1 digest / 26 sources / ads) 7-day trial, then paid
Paid $4.92/mo ($59/yr) Personal ~50¢/day (~$14.99/mo)
Best when You want one free morning email from many tiles You drown in the stream and need answers in chat

Pricing cite: app.mailbrew.com/pricing (2026-08-23).

Dewey pricing showing Personal and Business plans Mailbrew pricing showing Free and Paid plans

Who should pick Mailbrew

One free morning email from X/Reddit/HN/YouTube + pubs. Dewey does not undercut free.

Who should pick Dewey

The Brew still leaves questions; Follow → Send → Ask.

Can you use both

Keep morning Brew; Send decision pieces into Dewey.

"I'll just use free Mailbrew"

Free wins the bundle email job; Dewey wins Ask in chat. Don't race $0.

Triangle with Readless

Mailbrew free multi-source bundle / Readless paid AI newsletter digest no social / Dewey chat Ask.

FAQ

What is Dewey?

A private research layer: Follow newsletters/podcasts/YouTube/X bookmarks, Send links, Ask in iMessage or Telegram. Not an RSS reader.

What is Mailbrew?

Multi-source email digest builder ("Brews"): newsletters, RSS, Twitter/X, Reddit, HN, YouTube, Readwise → one scheduled email. Acquired by Evernomic (Nov 2025).

Is Dewey a Mailbrew alternative?

Only if you need Ask in chat after the morning Brew.

How is Dewey different from Mailbrew?

Mailbrew bundles many sources into one email. Dewey Follows sources and answers later in chat.

How much does Mailbrew cost?

Free $0 (1 digest / 26 sources / ads) or paid $4.92/mo ($59/yr).

Should I cancel Mailbrew for Dewey?

Not required.

How much does Dewey cost?

7-day trial, then about 50¢/day.

Can I use both?

Yes.

Is my Dewey reading private?

Private, never shared, never trained on.

Start Dewey's 7-day trial

No card required. Follow what matters. Ask anytime.

Start trial at trydewey.ai