Growth · alternatives · 2026

24 alternatives to Unspam AI

See how your subscribers read your emails with our AI inbox

Unspam AI is a free email spam checker tool that analyzes how subscribers receive and read emails. It includes an inbox placement insight tool and an AI email scanner to help users understand email performance. The… 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. Unspam AI launched in 2024; newer entries below may have overtaken it.

1
Unspam.email▲299
Email spam checker and newsletter heatmap prediction.
2020 · unspam.email · its alternatives →
2
Inbox Zero▲821
Clean Up Your Inbox In Minutes Newsletter management, AI automation, and email analytics. Inbox Zero is the open-source email app that puts you back in control of your inbox.
2023 · getinboxzero.com · its alternatives →
3
Unspam.io▲9
Free up your inbox from unsolicited cold emails
2024 · its alternatives →
4
mailX by mailwarm▲596
Email deliverability toolkit for humans and AI agents
May 2026 · themailx.com · its alternatives →
5
MailTester.AI▲327
Forward an email and get an AI deliverability report in 30s
2025 · mailtester.ai · its alternatives →
6
Warmup Inbox▲204
Free email spam checker & inbox placement tester
2023 · warmupinbox.com · its alternatives →
7
You've Got Spam▲305
A new tool that lets you spam back the spammer
2020 · youvegotspam.mschfmag.com · its alternatives →
8
Mocke▲519
Mock email campaigns: know your reply rate without launching
2025 · mocke.co · its alternatives →
9
MailAdept by mailwarm▲287
AI Agents & Email deliverability experts on your team
Jul 2026 · mailadept.com · its alternatives →
10
Upstream▲976
The inbox designed for humans and agents
Jun 2026 · upstream.do · its alternatives →
11
Email Spam Checker by Autoklose▲105
Send spam-free, high-converting emails
2020 · app.autoklose.com · its alternatives →
12
Mailwarm 2.0▲676
The email warmup tool, upgraded for deliverability.
Jun 2026 · mailwarm.com · its alternatives →
13
Mail Tester▲309
Test the spamminess of your email
2016 · mail-tester.com · its alternatives →
14
Forage Mail▲306
AI that solves email overwhelm. Not another mail app.
2025 · foragemail.com · its alternatives →
15
letterpal▲399
Write good newsletters, fast.
2025 · letterpal.io · its alternatives →
16
NudgeForMe▲286
AI follow-up agent for missed email opportunities
Aug 2026 · nudgeforme.com · its alternatives →
17
AI Emailyfree tier, from $14.99/mo▲165
Your AI inbox that writes like you + replies on autopilot
Jul 2026 · aiemaily.com · its alternatives →
18
Spam Checker by Mailmeteor▲88
Detect and remove spam words in your emails
2022 · mailmeteor.com · its alternatives →
19
AI-Powered Email Ticketing - Kommunicate▲288
Resolve incoming email queries effortlessly with AI
2025 · kommunicate.io · its alternatives →
20
AI Easy Newsletter Studio▲269
Effortless newsletter success with AI power
2023 · valerianotion.gumroad.com · its alternatives →
21
IsThisSpam▲13
Simple, AI based, email first spam/scam detection service
2025 · isthisspam.org · its alternatives →
22
KleanMail Free Email Verifier▲177
Emails inboxed, always.
2022 · kleanmail.com · its alternatives →
23
ReplylessAI▲122
AI Email app that's affordable, Hit Inbox Zero
Mar 2026 · replyless.ai · its alternatives →
24
Outboundly.ai▲190
AI-powered cold outreach platform
2023 · outboundly.ai · 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 →