How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Why teams look for a Spike alternative
Spike turns email into chat. Messages read like a conversation, groups work like chat rooms, and the same app covers notes, tasks and calls. It appeals to teams that find the traditional inbox slow and formal. People look elsewhere for a few reasons. The first is the free plan limit. The free email plan covers one address with search limited to 60 days, so anyone with several accounts pays for Ultimate at $12 per user per month. The second is the chat-first model itself. Some teams want a calmer, more conventional inbox rather than a chat view of every thread. The third is platform and privacy. Spike is mobile first, and teams with strict data rules sometimes want a provider with a clearer privacy model.
How we picked these 8 alternatives
We picked email apps that cover the same job as Spike, which is handling daily email faster and with less friction. Every tool here has a published starting price checked on 15 Nov 2026 and a working vendor website. The list covers speed-focused clients, team inboxes and privacy-first providers, so a buyer can compare a like-for-like swap with a different approach to email. Prices below are per user per month on annual billing unless stated otherwise.
Spike alternatives at a glance
| Tool |
Best for |
Starting price |
Free plan |
| Superhuman |
Speed and keyboard-first email |
$25 per user per month |
No, 30-day trial |
| Shortwave |
AI triage on Gmail |
$18 per seat per month |
Yes |
| Spark |
A polished all-round mail app |
$8.25 per user per month |
Yes |
| Missive |
Shared inboxes for teams |
$14 per user per month |
No, 30-day trial |
| Hey |
An opinionated inbox that screens senders |
$99 per year |
No, 30-day trial |
| Canary Mail |
Apple users who want encryption extras |
$36 per year |
Yes |
| Edison Mail |
A free unified inbox on mobile |
$99.99 per year for Mail+ |
Yes |
| Proton Mail |
Privacy-first email with encryption |
$3.99 per month |
Yes |
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Superhuman | Heavy emailers who want the fastest inbox available | $25 per user per month, billed annually (Starter; $30 per month billed monthly) | No, 30-day trial only |
 Shortwave | Gmail power users who want AI triage | $18 per seat per month (Pro, individual plan; billed monthly only) | Yes, with basic AI, 90 days of AI search history and a forced "Sent with Shortwave" signature |
 Spark | Individuals and teams that want a polished all-round mail app | $8.25 per user per month, billed annually (Plus, $99 per year) | Yes, with Smart Inbox, unlimited accounts and calendar |
 Missive | Teams that share inboxes and chat about email together | $14 per user per month, billed annually (Starter) | No, 30-day free trial only |
 Hey | People who want less email, not faster email | $99 per year for HEY for You ($8.25 per month equivalent, annual billing only) | No, 30-day free trial, no credit card required |
 Canary Mail | Apple users who want a fast client with privacy extras | $36 per year for Growth ($3 per month equivalent, yearly billing only) | Yes, with unlimited accounts and up to 2 devices |
 Edison Mail | Mobile users who want a free unified inbox | $99.99 per year for Edison Mail+ ($8.33 per month equivalent; $14.99 per month billed monthly) | Yes, with unlimited accounts, unified inbox and one-tap unsubscribe |
 Proton Mail | People who want encryption and independence from ad platforms | $3.99 per month, billed yearly for Mail Plus ($47.88 per year) | Yes, with up to 1 GB storage, 1 address and 150 messages a day |
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
The 8 best Spike alternatives
#1Superhuman
Best for: Heavy emailers who want the fastest inbox available4.7/5 on
G2 (1,309 reviews, checked Oct 2026)
Visit superhuman.com
Starting price$25 per user per month, billed annually (Starter; $30 per month billed monthly)
Free planNo, 30-day trial only
Superhuman is the premium answer to the problem Spike solves. Where Spike makes email feel like chat, Superhuman makes it feel like a command line, with every action a keystroke away and a split inbox that separates the important from the rest. The Starter price of $25 per user per month billed annually is the highest in this list, and the onboarding is part of the product, with a coach teaching the workflow in the first weeks. Note the price figures here are third-party reported, because the vendor pricing page timed out on a fetch on 15 Nov 2026, though multiple Oct 2026 sources agree on the figures. For a heavy emailer whose inbox costs real time every day, Superhuman is the strongest pick. For a casual user, it is more money and more habit change than the problem needs.
What we like- It is the fastest email client in this list, with keyboard shortcuts for everything, split inbox triage and AI drafting, plus one-to-one onboarding that teaches the workflow.
Watch out for- It works only on top of Gmail or Outlook, so you keep paying for Google Workspace or Microsoft 365 separately.
Starting price$18 per seat per month (Pro, individual plan; billed monthly only)
Free planYes, with basic AI, 90 days of AI search history and a forced "Sent with Shortwave" signature
Shortwave is the closest Superhuman shape at a lower price, and the closest AI-first alternative to Spike. It turns Gmail into bundles and todos, adds an AI assistant that drafts replies and summarises threads, and keeps keyboard shortcuts across the whole app. The Pro plan at $18 per seat per month has no annual discount, so the monthly cost is the cost, and Business at $30 is the team tier. The free plan is usable for trying the workflow, though it carries a forced signature and a 90-day AI search history. The hard limit is Gmail only. If your team runs on Outlook, Shortwave is not an option. For a Gmail team that wants AI help with triage, it is the best pick here.
What we like- It rebuilds Gmail into bundles, todos and AI summaries, with an assistant that drafts in your voice, and the free tier is genuinely usable.
Watch out for- Gmail and Google Workspace only, with no Outlook, IMAP or Exchange support.
Starting price$8.25 per user per month, billed annually (Plus, $99 per year)
Free planYes, with Smart Inbox, unlimited accounts and calendar
Spark is the friendly alternative to Spike. It keeps a conventional inbox, adds a smart inbox that surfaces important mail, and covers snooze, send later, follow-up reminders and shared drafts for teams. The free plan is generous, with unlimited accounts, and Plus at $8.25 per user per month adds the full AI assistant and more. The privacy trade-off is the thing to read carefully. Cloud features work by storing your account credentials on Readdle servers, which some teams will not accept. For most individuals and small teams that want a better mail app without changing how email works, Spark is the easiest switch from Spike.
What we like- The smart inbox, snooze, send later and shared drafts are polished, it works across Gmail, Outlook, Yahoo and IMAP, and the free plan covers unlimited accounts.
Watch out for- Cloud features such as Send Later and cross-device sync require storing your account credentials on Readdle servers.
#4Missive
Best for: Teams that share inboxes and chat about email together4.7/5 on
G2 (861 reviews, checked Oct 2026)
Visit missiveapp.com
Starting price$14 per user per month, billed annually (Starter)
Free planNo, 30-day free trial only
Missive is the team answer to Spike. Where Spike makes email feel like chat for one person, Missive makes a shared inbox feel like a team chat room, with colleagues commenting beside the message, assigning conversations and drafting together. It suits support, sales and operations teams whose inbox is really a queue. The Starter price of $14 per user per month covers up to 5 users, and the cap is the part to plan around, since the sixth user doubles the per-seat cost for everyone. For a solo user, Missive is the wrong tool. For a team that shares an inbox, it is the strongest pick here.
What we like- Shared inboxes, team chat and tasks sit in one app, internal comments keep discussion beside the message, and the price is fair for a team tool.
Watch out for- Hard user caps force a price jump for the whole team. The 6th user moves everyone from Starter at $14 to Productive at $24, and the 51st moves everyone to Business at $36.
#5
Hey
Best for: People who want less email, not faster email
Visit hey.com
Starting price$99 per year for HEY for You ($8.25 per month equivalent, annual billing only)
Free planNo, 30-day free trial, no credit card required
Hey takes the opposite approach to Spike. Instead of speeding up the inbox, it changes the rules. Every new sender waits in a screener for your yes or no, accepted mail splits into an Imbox for important senders, a feed for newsletters and a paper trail for receipts. At $99 a year it costs a third of Superhuman while solving the volume problem rather than the speed problem. The cost is commitment. You move to a hey.com address or a custom domain on the Domains plan, and there is no IMAP freedom to take your habits elsewhere. For someone drowning in email who is ready to change how the inbox works, Hey is the most distinctive alternative here.
What we like- The screener puts every new sender on hold until you approve them, tracking pixels are blocked by default, and the Imbox, feed and paper trail split mail by purpose.
Watch out for- No IMAP or POP support, so HEY mail cannot be read in Apple Mail or Outlook, and you must adopt a new @hey.com address.
#6Canary Mail
Best for: Apple users who want a fast client with privacy extras4.5/5 on
G2 (53 reviews, checked Oct 2026)
Visit canarymail.io
Starting price$36 per year for Growth ($3 per month equivalent, yearly billing only)
Free planYes, with unlimited accounts and up to 2 devices
Canary Mail is the Apple specialist in this list. It gives Mac and iPhone users a fast client with PGP encryption, read tracking controls and an AI assistant, and it connects to Gmail, iCloud, Outlook and IMAP accounts. Growth at $36 a year is the cheapest paid plan in this list, and the free plan covers unlimited accounts on up to 2 devices. The limits are platform and tiers. It is Apple only, so Windows and Android users are out, and the privacy features that justify the switch sit on Pro+ at $100 a year. For an Apple user who wants a polished client with encryption extras, Canary Mail is the pick. For a mixed-platform team, Spark fits better.
What we like- It is a fast, native-feeling client for Mac and iPhone with PGP support built in, read tracking controls and an AI assistant for summaries and drafts.
Watch out for- The free plan stops at 2 devices, and PGP encryption, SecureSend and phishing protection are locked behind the $100 per year Pro+ plan.
Starting price$99.99 per year for Edison Mail+ ($8.33 per month equivalent; $14.99 per month billed monthly)
Free planYes, with unlimited accounts, unified inbox and one-tap unsubscribe
Edison Mail is the free alternative to Spike for mobile users. The core app costs nothing and covers a unified inbox across accounts, one-tap unsubscribe and smart replies, which is close to the Spike experience on a phone. Mail+ at $99.99 a year adds the extras. Two caveats matter. The free app is funded by anonymised research drawn from users' commercial emails, which privacy-conscious buyers should weigh. And the desktop app has been retired, so Edison is mobile only now. Note the price figures here are third-party reported, because the vendor homepage shows no pricing. For a mobile-first user who wants a free unified inbox, Edison Mail is the pick. For desktop use, Spark or Canary Mail fits better.
What we like- The core app is free with unlimited accounts and a unified inbox, and Mail+ adds custom swipe actions, extra themes and more storage.
Watch out for- The free app is funded by anonymised research drawn from users' commercial emails, and the desktop app has been retired, so it is mobile only now.
#8
Proton Mail
Best for: People who want encryption and independence from ad platforms
Visit proton.me
Starting price$3.99 per month, billed yearly for Mail Plus ($47.88 per year)
Free planYes, with up to 1 GB storage, 1 address and 150 messages a day
Proton Mail changes the mailbox, not just the client. Mail is end-to-end encrypted, the company is based in Switzerland, and Mail Plus at $3.99 a month billed yearly adds storage, custom domains and more addresses. It is the privacy-first alternative to Spike, and the cheapest paid plan in this list after Canary Mail. The trade-off is migration. You move your mailbox or forward into it, which is a bigger step than installing a client, and encryption limits search inside old mail. Note the price figures here are third-party reported, because the vendor pricing page did not render its figures in a text fetch on 15 Nov 2026, though multiple sources agree. For a buyer whose real question is who can read their mail, Proton Mail is the honest answer.
What we like- End-to-end encryption, a Swiss legal base and a free tier with real storage make it the privacy benchmark, and the wider Proton suite sits one subscription away.
Watch out for- The free plan has no IMAP or SMTP access, no custom domain and no desktop app access, so using it with a desktop mail client requires a paid plan.
How to choose the right Spike alternative
Start with what bothers you about email. If the problem is speed and volume on Gmail, Shortwave at $18 a month or Superhuman at $25 are the answers, with Shortwave the cheaper of the two. If the problem is sharing an inbox with a team, Missive at $14 is the pick. If the problem is too much mail rather than slow mail, Hey at $99 a year changes the rules instead of the speed. If the problem is privacy, Proton Mail at $3.99 a month is the benchmark, and Canary Mail at $36 a year is the Apple-friendly version. If you just want a better free mail app, Spark or Edison Mail cover that without paying. Try the finalist on your real inbox for a week. Email tools feel different with your own mail, and a week of real use shows whether the new workflow sticks.
Frequently asked questions
Is Spike free?
Yes, the core Spike email app is free, with one email address and search limited to 60 days. The Teamspace Team plan starts at $4 per member per month billed annually, the Pro email plan at $6 per user per month, and Ultimate at $12 per user per month for a unified inbox with more than 3 addresses.
Which Spike alternative is cheapest?
Canary Mail Growth at $36 a year is the cheapest paid plan, and Proton Mail Plus at $3.99 a month billed yearly is close behind. Spark, Shortwave, Edison Mail and Proton Mail all have free plans, so the cheapest way to start is free on any of those.
Which alternative is best for Gmail users?
Shortwave is the best fit for Gmail power users who want AI triage, bundles and keyboard control. Spark is the best fit for a friendlier smart inbox with team features. Both leave your Gmail account untouched underneath, so trying them risks nothing but an afternoon.
Which alternative is best for a team?
Missive is the best fit for a team that shares an inbox, with assignment, comments and shared drafts for $14 per user per month. Spark Pro is the best fit for a team that wants shared inboxes inside a conventional mail app. Spike itself is built for teams too, so compare the team plans side by side before switching.
Do I need to change my email address to switch?
No, if you choose a client. Superhuman, Shortwave, Spark, Missive, Canary Mail and Edison Mail all run over your existing Gmail or Outlook account. Yes, in effect, if you choose a provider such as Proton Mail or Hey, though a custom domain on either means you never change addresses again, since the domain moves with you between providers for life.
Sources we checked (8)
- https://superhuman.com
- https://shortwave.com/pricing
- https://sparkmailapp.com/pricing
- https://missiveapp.com/pricing
- https://hey.com/pricing
- https://canarymail.io/pricing
- https://edisonmail.com/
- https://proton.me/mail/pricing
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.