In the browser
Nothing to install: open Flaxxa and your mail is there.
Flaxxa Mails vs Spark
A Spark Mail alternative that runs in your browser.
Spark is a polished email app with native desktop and mobile apps, a Smart Inbox, AI on paid plans and team sharing. Flaxxa Mails is a simpler, browser-based unified inbox for Gmail and IMAP accounts, with undo send, scheduled send, cross-account search and a REST API, inside the same workspace as your other Flaxxa apps.
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flaxxa.com / product / mails / features
Capabilities
Everything Mails ships with.
◉
Connect your mailboxes
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The unified inbox
✦
Search & organise
⌬
Compose & send
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Adaptive sync
▣
API, webhooks & Sign
The full feature list→ Start free
Side by side
Flaxxa Mails vs Spark, feature by feature.
What Spark lists on its own website beside what Flaxxa Mails does. Where their site doesn't say, the table says so.
At a glance
Flaxxa Mails wins outright on 4 of 17 capabilities.
Capability-by-capability below — judge for yourself.
| Capability |  | Spark |
|---|---|---|
| Plans | ||
Free plan | See Flaxxa plans | Yes |
Paid plans | Part of Flaxxa plans | Plus and Pro, per user |
Included with other business appsadvantage | Yes | Not listed |
| Accounts | ||
Gmail | Yes | Yes |
Outlook / Microsoft 365 | Not yet | Yes |
Other IMAP accounts | Yes | Yes |
Unified inbox | Yes | Yes |
| Reading and sending | ||
Scheduled sendadvantage | Yes | Paid plans |
Undo send | Up to 60 seconds | Not listed |
Snooze | Marker for a day | Paid plans |
Templates | — | Paid plans |
AI drafting | — | Paid plans; limited preview on Free |
Read statuses | — | Pro plan |
| Teams and platforms | ||
Shared inboxes and comments | — | Paid plans |
Native desktop and mobile apps | — | Mac, Windows, iOS, Android |
Runs in a web browseradvantage | Yes | Not listed |
REST API and webhooksadvantage | Yes | Not listed (CLI on paid plans) |
01 / 02
Why choose Flaxxa Mails over Spark?
Both put several accounts in one inbox. Flaxxa Mails keeps it in the browser, next to the rest of your workspace.
One plan, many apps
Mails comes with your Flaxxa plan, beside your other Flaxxa apps.
An API
Send from a connected mailbox and get webhooks, from your own code.
02 / 02
Where is Spark the better choice?
Spark is a mature, feature-rich email app.
- Native apps for Mac, Windows, iOS and Android.
- Outlook, Exchange and iCloud accounts today.
- AI writing help and templates on paid plans.
- Shared inboxes, shared threads and comments for teams.
Other comparisons
Flaxxa Mails vs the rest of the category
Flaxxa Mails vs Superhuman
A Superhuman alternative that also connects IMAP accounts: one browser inbox with search, labels, undo send, scheduled send and an API.
Flaxxa Mails vs Missive
A Missive alternative for people who need their own Gmail and IMAP accounts in one inbox, not team chat: search, undo send, scheduled send and an API.
Flaxxa Mails vs Front
Front is a shared inbox for teams; Flaxxa Mails is a unified inbox for your own Gmail and IMAP accounts. Which fits, and where Front is the better choice.
FAQ
Flaxxa Mails vs Spark: common questions
Spark is an email app with native apps for Mac, Windows, iOS and Android, AI features and team tools on its paid plans. Flaxxa Mails is a browser-based unified inbox for Gmail and IMAP accounts, with undo send, scheduled send and an API, that comes with your Flaxxa plan.
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