Shortwave Email Client Review: Pricing, Plans, and Alternatives

What Shortwave email costs, and the meter that is not in the headline

Pricing verified at shortwave.com on August 31, 2026, read directly from the pricing page and its full plans-and-features table. Business is $30 per seat per month, Premier is $45, and Max is $120. Every tier comes with a 14 day free trial. Shortwave's billing documentation states that new subscriptions are billed monthly, and the pricing page shows no annual discount toggle, which makes it unusual in this category: most competitors quote a discounted annual rate as the headline number and charge more month to month. Here the number you see is the number you pay, which is worth something when you are comparing.

Now the part that actually decides whether the cheap tier works for you. The tiers barely differ on features. They differ on how much AI you are allowed to use. Nearly every capability, AI integrations, web browsing, attachment analysis, AI memory, saved prompts, instant AI replies, personalized AI writing, inbox organization, splits and bundles, is ticked on all three plans in Shortwave's own comparison table. What moves is the allowance.

Business gives you "standard intelligence" and a daily AI usage quota Shortwave describes as "more usage". Premier doubles that quota and upgrades the model tier to "advanced intelligence". Max multiplies the quota by six and calls its model tier "expert intelligence". Alongside that, the depth of each AI search is capped: a maximum of 50 threads per AI search on Business, 100 on Premier and 150 on Max, with search context tokens at standard, 2x and 3x respectively. AI-powered filters are capped at 3, 10 and 50. AI-powered search history reaches back five years on Business and is unlimited on Premier and Max, while ordinary non-AI search history is unlimited everywhere.

Read that as a buyer rather than as a spec sheet. If your reason for wanting Shortwave is asking questions across a decade of mail, the five year AI search ceiling on the $30 plan is the thing that will disappoint you, and the honest price for what you actually wanted is $45. If you want to point it at a hundred-message thread and have it reason across the whole thing, the 50 thread cap on Business is the ceiling you will hit first. This is the same shape of trap as Superhuman putting Auto Drafts and Ask AI on its upper tier: the entry price is real, but it is often not the price of the product people describe in reviews.

Is Shortwave email free?

Yes, and this is genuinely confusing because the pricing page does not obviously show it. Shortwave's pricing page opens on a Business tab displaying only the three paid plans and a 14 day trial. There is a second tab labelled Individual next to it, and that is where personal-use plans live.

The free plan is real and Shortwave says so in three places we checked on August 31, 2026. The pricing page's own page description reads "Get started for free, upgrade when you're ready". Its FAQ carries the question "Can I use Shortwave for free?" verbatim. And Shortwave's billing guide states that Shortwave is free to get started, with access to its core productivity features and the AI assistant. The catch is a signature: mail sent from a free account carries a "Sent with Shortwave" footer, and removing it is one of the things you pay for. Shortwave has described that as the trade that funds an advertising-free free tier.

Two honest cautions before you plan around it. First, several of Shortwave's own older blog and documentation pages still describe a plan lineup named Personal, Pro and Business, which no longer matches the Business, Premier and Max names on the live pricing page, so treat any specific personal-tier dollar figure you find in an article as unverified. We are not publishing one, because we could not render that tab and we would rather give you no number than a number we cannot stand behind. Second, a "Sent with Shortwave" footer on every outgoing message is fine for personal mail and wrong for client-facing business mail, so for a company mailbox the free plan is a trial in practice rather than a destination.

What Shortwave does well, and does better than we do

Shortwave is built around a genuinely different bet from the rest of the category. Most AI email tools bolt drafting onto an existing client. Shortwave rebuilt the client so that AI is the primary way you interact with mail, and it is the most convincing execution of that idea currently shipping.

The AI assistant searches and reasons across your mail history in plain language rather than matching keywords, which is the feature people actually stay for. AI-powered filters route incoming mail by rules you describe instead of rules you construct. Bundles and splits group the inbox so you face categories rather than a stream. It reads attachments, browses the web when an answer needs it, keeps memory across conversations, and autocompletes in your own writing style. For someone sitting on years of Gmail who cannot find anything and cannot keep up, this is a real product solving a real problem, and the enthusiasm in its reviews is not manufactured.

It is also stronger than we are on privacy hygiene, which rarely gets mentioned. Shortwave strips tracking pixels from incoming mail automatically and offers a privacy mode that proxies and caches images through its own servers so senders cannot see when you opened something. On the compliance question people search for, Shortwave publishes CASA Tier 2 as its security posture. That is a Google-ecosystem application security assessment, and it is worth knowing that it is not the same thing as SOC 2 Type II or HIPAA. If your security review requires a specific framework, ask Shortwave directly rather than reading one certification across to another.

One more thing worth knowing, because it changes what you are buying: Shortwave now points automation work at a sister product called Tasklet, described on the pricing page as 24/7 workflow automation that can draft replies, add team comments and connect to more than 3,000 apps. So if your requirement is automation beyond AI filters, the answer at Shortwave is a second product, not a higher tier.

Where Shortwave and Officeagent actually differ

Shortwave makes your inbox intelligent. Officeagent does the work the inbox creates. That reads like a slogan, so here is the concrete version.

A client emails to move Thursday's call and asks whether the revised scope ever went out. In Shortwave you will find that thread instantly even if it is two years old, get a summary of what was agreed, and draft a reply in your own voice. What you still do yourself: open the calendar, work out which slots are genuinely free, send the invite, find the current version of the scope document, attach it, file the new version somewhere sensible, and remember on Monday that they never confirmed.

Officeagent starts where that ends. It reads the thread and handles the back and forth until the invite exists. It drafts the reply in your tone, finds and attaches the document, files the new version where it belongs, writes the recap and action items after the call, and keeps chasing the follow-up until somebody answers. Nothing sends on its own. Every outbound action waits in a queue for a human click, which is why the how it works page spends most of its length on the approval loop.

The genuine overlap is search and drafting, and we should be straight about who wins it. Shortwave's AI search across mail history is better than ours, because that is the product and it has been tuned for it for years. If the sentence "I know someone told me this, I just cannot find it" describes your week, buy Shortwave. Our search covers mail, documents and tasks together, which is a different and broader shape, but on raw mail retrieval depth we would lose the comparison.

The difference that matters is what happens after the answer. Shortwave hands you the thread and the draft. We hand you a completed booking, a filed document, a written recap and a follow-up that is still being chased on Friday. Those are different purchases. A Gmail-based team with a search problem and an admin problem could sensibly run both, and some do.

Shortwave alternatives, including the one you may already own

If Shortwave is ruled out on the Gmail requirement, or you want to compare before committing, the shortlist is short and the first item costs nothing extra.

Check what your existing licence already includes. Google Workspace Business plans include Gemini in Gmail at no additional cost. Microsoft 365 Copilot adds AI drafting and summarizing across Outlook for $18 per user per month on annual billing, on top of a qualifying Microsoft 365 Business licence, verified at microsoft.com on August 18, 2026. A meaningful share of teams buy a third email tool for something their current subscription already does. Turn it on, run it for four weeks, then decide what is still missing. If nothing is, buy nothing.

Superhuman Mail is the direct rival and the one people actually cross-shop, verified at superhuman.com on August 16, 2026: Starter $25 per member per month and Business $33, both billed annually, with no free tier. It supports both Gmail and Outlook, which is the practical reason to prefer it if you are on Microsoft. It optimizes for keyboard speed and one-pass triage where Shortwave optimizes for AI search and sorting. Shortwave even publishes a migration guide for people leaving Superhuman, which tells you how often that swap happens. We compare it in detail on the Superhuman alternative page.

Missive is the one to look at if more than one person works the same mailbox, verified at missiveapp.com on August 16, 2026: Starter $14 per user per month billed yearly for up to 5 users, Productive $24 for up to 50, Business $36 for unlimited, with 20% off annual billing. For a shared support@ or billing@ inbox, Missive solves a problem neither Shortwave nor Superhuman addresses, and at Starter it is the cheapest serious option in this group.

On the open source question, which people do search for: there is no open source product that reproduces Shortwave. Thunderbird, Roundcube and SOGo are mature and free, and all three are ordinary mail clients with no AI search, no learned-voice drafting and no AI filtering. Treat "open source Shortwave alternative" as a category that does not exist yet rather than a product you have failed to find. The whole field, with us deliberately not placed first, is ranked on the best AI email assistant roundup.

When Shortwave is the better buy

Buy Shortwave, not Officeagent, if the mail itself is the problem and you are on Gmail. If you have years of Google Workspace history you cannot search, if your inbox is a stream you have stopped trying to sort, if the recurring frustration is finding and organizing rather than doing, Shortwave addresses that directly and no general assistant will match it. Start on Business at $30, and move to Premier at $45 if you hit the five year search ceiling or the 50 thread cap, which heavy users do.

Look past Shortwave for two specific reasons, stated narrowly because the broad version would be a sales pitch. The first is mechanical: you are on Microsoft 365 or Exchange, in which case this is not a decision, it is a requirement you do not meet. The second is that your inbox is already under control. You reply quickly, you can find things, and you are still losing the week, because what is piling up is everything the emails commit you to: the meeting nobody booked, the document nobody filed, the recap nobody wrote, the client nobody chased. A better inbox does not touch that pile, because the pile is not made of messages.

For reference on our side, Officeagent is $149 a month for a single operator ($119 billed annually) and $399 a month flat for the Office plan covering up to ten teammates ($319 annually). Per person on a small team that lands near Shortwave Business, and it buys a different thing. If you are not sure which problem you have, the cheap diagnostic is to spend a week noticing whether you lose more time finding mail or doing what the mail asked for.

• Buy Shortwave for: AI search across years of Gmail, AI-built filters, bundles and splits, tracker stripping, summaries, autocomplete in your voice
• Buy Officeagent for: meetings booked out of messy threads, documents found and filed, recaps written, follow-ups chased until they close, every send approved by a human first
• Buy neither yet if you are on Microsoft 365 and have not tried Copilot, or on Google Workspace and have not tried the Gemini you already pay for. Four weeks with what you own tells you what you actually need