MailCat

MailCat

by Seimitsusakufu LLC

1 ratings
23 reviews
$3.99

Details

Released
September 1, 2011
Updated
November 25, 2025

Features

MailCat screenshot #1 for iPhone
MailCat screenshot #2 for iPhone
MailCat screenshot #3 for iPhone
MailCat screenshot #4 for iPhone
MailCat screenshot #5 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

This app helps organize your inbox by automatically categorizing emails using machine learning and custom rules. It can filter spam and move messages to designated mailboxes, supporting IMAP accounts.

✓Machine learning spam filtering
✓Rule-based email categorization
✓IMAP account support
✓Move emails to specified mailboxes
✓Blacklist and spam learning data
✓Multiple account switching
Show original description

What's New in MailCat

1.6.0

November 25, 2025

Corrections are made to ensure compatibility with iOS 26.

User reviews

買わないで!

課金しても使い物にならない!
騙されるな❗️

Cannot logon to POP3 account! Please update.

I purchased this for work since I receive a lot of spam. However, it will not log on to the POP server no matter what I do. The default mail client does, so it's clearly a program failure.

金かえせー!クーリングオフしたる‼

使い方の説明全くナシ。
砂漠の真ん中にほっぽり出された感じ。
こんな不親切極まりないアプリ始めて!
作ったヤツの顔見たいわ、いや、
見たくもない。
これは詐欺行為に近いね。
金だけ取って知らんぷりっ。
かくなる上は殿下の宝刀、
クーリングオフじゃ。
各々方、呉々も斯くなる輩に
騙されてはならんぞよ‼

Not satisfied

As categorizer it's okay but it DOES NOT act on Spam. It needs a feature that will move spam to spam folder. Not downloading mail to the iPhone is simply not enough.

早く治して

アップデートするまではいい感じで使えていたのに、先日のアップデートから、迷惑メールを一括振り分け出来なくなりました。日々来る迷惑メールもハンパなくなり、とても一通一通振り分けてられる状態ではありません。至急改善するか、さもなくば、前のバージョンに戻す方法を教えて下さい。

Developer apps

FAQ

What is MailCat?

MailCat is a mail categorization app that uses machine learning and rule-based systems to filter spam and organize incoming emails. It supports IMAP accounts and allows users to move messages to specific mailboxes.

How does MailCat's spam filtering work?

MailCat generates a spam filter by learning from spam and non-spam messages you identify. By marking emails as 'SPAM' or 'HAM', the app's machine learning model becomes smarter over time, improving its filtering accuracy.

What types of email accounts does MailCat support?

MailCat exclusively supports IMAP mail servers. It does not support POP, SMS, or MMS.

How do I set up an IMAP account in MailCat?

To connect to an IMAP server, you need to provide your full email address as the login name and your password. If you don't have this information, contact your IMAP mail server administrator for the hostname, user ID, and password.

Can I send emails with MailCat?

No, MailCat does not have a mail sending facility. Its functionality is limited to receiving, categorizing, and filtering emails from IMAP accounts.

What are the rule-based categorization options in MailCat?

MailCat offers four conditional fields for creating mail rules: sender, subject, message, and compound. These rules are applied to emails in your INBOX to help automate organization.

What devices is MailCat available on?

MailCat is available on iPhone and iPad devices.

How often is MailCat updated?

The latest version of MailCat is 1.6.0, which was last updated on November 25, 2025. Updates typically address bug fixes and feature enhancements.