Kynth Email Assistant vs Superhuman
You don't need a new email client. You need the email handled.
Superhuman is the best-loved email client in the business: keyboard-first, genuinely fast, with AI drafting, Split Inbox triage, and calendar tools built in — and it's priced per seat, at $25 to $33 per user per month. Kynth Email Assistant takes a different approach: it's not a client at all, it's an executive-assistant layer that triages the Microsoft 365 inbox you already live in, drafts replies in your voice, and preps your calendar — at $19 a month flat. One replaces your email app; the other quietly works it for you. Here's the honest comparison.
Their published pricing, verified July 2026.
No success fee, no usage meter, no demo call. 30-day money-back guarantee.
A five-person team on Superhuman Business is 5 × $33 = $165 a month, every month, and the bill grows with every hire. Kynth Email Assistant is $19 a month flat — the price is printed on this page, and there's a 30-day money-back guarantee behind it.
The honest recommendation
- You want the client itself to be the upgrade — Superhuman's keyboard-first speed, Split Inbox, and polish are the product, and nothing else feels like it.
- Your team collaborates inside email — shared conversations, team comments, and read statuses are built in, which Kynth Email Assistant doesn't do.
- You're happy paying per seat for a tool each person drives themselves, with AI drafting included on the Business plan.
- You live in Microsoft 365 and don't want to switch clients — Kynth works the inbox you already have instead of replacing it.
- You want the assistant behavior — triage done, replies drafted in your voice, calendar prepped — rather than a faster way to do it all yourself.
- You want the price up front — $19/mo flat is printed here, the live demo needs no account or card, and the 30-day money-back guarantee covers the rest.
Simple pricing. No surprises.
No per-seat pricing, no usage meters, no demo call — one flat price. No contracts. Cancel anytime. No credit card to start.
Triage your inbox by hand with the same playbook — priorities, labels, and a follow-up list you actually work — free forever.
Pro reads every thread for you — the inbox arrives triaged, replies come drafted in your voice, and your calendar is prepped before the day starts.
- Everything in Free
- The AI runs the job for you
- Priority processing
30-day money-back guarantee — if Pro doesn't pay for itself, full refund, no questions asked.
