
The AI productivity suite with agents, email, and docs that work wherever you do
The AI productivity suite with agents, email, and docs that work wherever you do
Zero Inbox: Organizes and cleans up inbox clutter with human approval safeguards, but lacks core spam-filtering infrastructure. Spamdrain records 185,960 monthly visits with +22.6% month-over-month growth and Free Trial, Paid pricing. Zero Inbox records 2,111 monthly visits with -34% growth and Freemium pricing.

Clean your inbox. Discover magic.
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | spamdrain.com | zeroinbox.ai |
| Pricing Model | Free Trial, Paid | Freemium |
| Monthly Visits | 185.96K (185,960) | 2.11K (2,111) |
| MoM Traffic Delta | +34.27K (+22.6%) | -1.09K (-34%) |
| Primary Market & Share | 🇺🇸 United States (67.9%) | 🌐 Global (—) |
| Direct Visits / mo | 154.26K | 830 |
| User Rating | 4.3 | 4.1 |
| Supported Platforms | Website | Website |

Antispam service that keeps junk mail, phishing and viruses out of every inbox
Works with iPhone, Android, Mac, PC, Office 365 and general IMAP/POP accounts, so one filter protects every device that reads the same mailbox.
Every new message is analysed before delivery, and suspicious senders, malicious links and infected attachments are stopped instead of reaching you.
Each time you mark something as spam or confirm it is legitimate, the filter learns your preferences and gets more accurate over time.
Held messages are not lost. You can open your Spamdrain account, inspect what was blocked, and release false positives with a click.

Clean your inbox. Discover magic.
Every cleanup action is proposed first. Review suggested groups, keep any group unchanged, and only then approve the delete, move or unsubscribe — the tool never touches your mailbox unasked.
Sign in with Google or Microsoft instead of handing over a mailbox password. Access can be revoked from your provider at any time.
Zero AI sorts your inbox into spam, promotions, newsletters and important, so bulk delete and keep decisions can be made in groups rather than message by message.
Unsubscribe from any sender with one click, permanently block unwanted newsletters, and keep a record of every unsubscribe action taken.

The AI productivity suite with agents, email, and docs that work wherever you do
The AI productivity suite with agents, email, and docs that work wherever you do

An AI shopping agent that shortlists only the top 1% of products for you
An AI shopping agent that shortlists only the top 1% of products for you

Smart, focused email with AI help — for individuals and teams

SpecialistFeatures a privacy-first email client with AI assistance, lacking Spamdrain's dedicated inbound spam protection.
SpecialistFeatures a privacy-first email client with AI assistance, lacking Spamdrain's dedicated inbound spam protection.

Automate your email with AI
Automate your email with AI

AI-first email that turns your inbox into a chat-like workspace
AI-first email that turns your inbox into a chat-like workspace

Free / Open-sourceThe AI email assistant that sorts your inbox and drafts replies in your voice
Free / Open-sourceThe AI email assistant that sorts your inbox and drafts replies in your voice

SpecialistFocuses specifically on email deliverability and spam testing rather than blocking unwanted incoming mailboxes.
SpecialistFocuses specifically on email deliverability and spam testing rather than blocking unwanted incoming mailboxes.

AI email client that turns your inbox into clear next steps
AI email client that turns your inbox into clear next steps

Provides comprehensive enterprise email governance and security, but is more complex to set up than Spamdrain.
Provides comprehensive enterprise email governance and security, but is more complex to set up than Spamdrain.

SpecialistEvaluates suspicious emails and links for fraud risk, but does not provide continuous automated mailbox screening.
SpecialistEvaluates suspicious emails and links for fraud risk, but does not provide continuous automated mailbox screening.

The AI agent that runs your team's inbox
The AI agent that runs your team's inbox