AI · alternatives · 2026

24 alternatives to Plino

An Intelligent spam filtering system

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Plino launched in 2016; newer entries below may have overtaken it.

1
Spam-Detecting AI by OpenAI▲73
Spam detection in the physical world
2017 · its alternatives →
2
Helo▲103
An independent email API from former Postmark folks
16d ago · helohq.com · its alternatives →
3
Spacy.io▲86
Semantic analysis of the Reddit hivemind
2016 · its alternatives →
4
MailMentor▲162
A data driven approach to writing better email
2015 · mailmentor.io · its alternatives →
5FM
Flute – my attempt at a better email API▲40
2018 · flutemail.com · its alternatives →
6
Pingly▲86
A new messaging platform working to evolve email
2014 · its alternatives →
7
Iterable▲94
Smarter email marketing
2014 · iterable.com · its alternatives →
8
Uiicorn▲73
An intelligent marketing AI for social media
2016 · its alternatives →
9
Boxer▲73
The first open platform for mobile email
2014 · omnissa.com · its alternatives →
10
IntellAgents.iofree tier, from $20/mo▲85
One AI agent for every call, chat, and DM
23d ago · intellagents.io · its alternatives →
11
bipio▲76
A Personal API for Email and Web Apps
2014 · bip.io · its alternatives →
12
SpamSieve▲71
Add powerful spam filtering to your Mac’s e-mail client
2018 · c-command.com · its alternatives →
13
Make senders work to get into your inbox▲44
Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…
Jul 2026 · captchainbox.com · its alternatives →
14AS
A Secure, Local AI Solution for a Tidy Gmail Inbox▲12
2024 · spamslaya.com · its alternatives →
15
Sendkit▲25
The AI-Native Email Infrastructure
Apr 2026 · sendkit.dev · its alternatives →
16
getFilter▲14
AI-Powered SMS Spam Filtering
2017 · getfilter.io · its alternatives →
17PO
ParseMail.org – A tool for email admins▲8
2015 · parsemail.org · its alternatives →
18AP
API powered by machine learning to detect disposable emails▲5
2020 · categorize.email · its alternatives →
19
SmarterChild▲15
An intelligent bot
2014 · en.wikipedia.org · its alternatives →
20
Spamurai - Spam text detection model▲8
Tackle Spam with Precision: Detect, Classify and Manage
2024 · its alternatives →
21
Rettach▲7
Virtual assistant for organizing email attachments
2017 · forsale.godaddy.com · its alternatives →
22
I made an AI-based tool to finds you highly-targeted leads and emails▲5
Os lenços LIO absorvem o brilho instantaneamente, sem borrar a maquiagem e sem agredir a pele. Feito com tecnologia japonesa, tem um toque único, e é perfeito pra manter a pele sequinha, fresca e equilibrada durante o dia todo.
2018 · uselio.com · its alternatives →
23IO
IsDisposable – Open-source disposable email detection (160K+ domains)▲5
Mar 2026 · npmjs.com · its alternatives →
24
Fight email spoofing. A free tool to monitor and implement DMARC▲8
A free tool to monitor and implement DMARC
2014 · dmarc.postmarkapp.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →