Wi2Connect4 vs MailCat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Wi2Connect4
This tool simplifies connecting to Wi-Fi hotspots within designated service areas. It allows for one-click login and logout and includes a feature to search for available Wi-Fi locations. Setup requires entering your service credentials and installing a profile.
- One-click login/logout
- Wi-Fi hotspot search
- Automatic connection
- Service area information
- Profile installation
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Wi2Connect4 is a Wi-Fi hotspot auto-login tool for Wi2 300 Wi-Fi service areas provided by Wire and Wireless Co., Ltd.. [Main features] - One click to login/logout at Wi2 300 Wi-Fi hotspots - Hotspot Search [Wi2 300 Wi-Fi Service Areas] - Wi-Fi Square (Wi2, Wi2_club,,wifi_square) note: For detailed service area information, please refer to the area map on the Wi2 300 website or use the Area Search feature within this app. [How to set up] 1. Enter your login ID and password. (To get your login ID and password, please tap Wi2 300 Service Page (top left). 2. Tap Wi2 300 Wi-Fi profile (top right) to install Wi2 300 profile. [How to use] Open this tool at one of our Wi-Fi service areas to log in automatically. Once successfully logged in, it will close by itself. Tap the Logout button to logout from a logged-in spot.
MailCat
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
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■MailCat is a Mail Categorizer: MailCat is a Mail Categorization App. MailCat has two kinds of categorization method --- a machine learning categorization and a rule based categorization. MailCat can filter out spams from the incoming mail messages by the machine learning categorizer, and move mail messages to the specified mailbox by rules. MailCat has no mail sending facility and has only support for IMAP. POP/SMS/MMS are not supported. ■How to connect to an IMAP mail server: To connect an IMAP mail server, just specify your full email address as your login name(username) and the password you log in to your account. If you don't know your login name/password, contact an organization or personnel in charge of the IMAP mail server to get a hostname, user id(name), password. ■Basic operation: * Pull down to Refresh/Long Press to reload&spam filtering * Push up to download older mails at the bottom of message lists *Tap/Swipe to switch accounts Tapping/Swiping the navigation bar of the Mailbox list switches the account if multiple accounts are available. * Tap/Swipe to move around mailboxes (among 'Quick View List') * Move/Delete/Mark mail messages by the toolbar on the navigation bar * Tap/Swipe the navigation bar to turn over mail messages * Add a mail to the blacklist/spam learning data by swiping *Tap a Tab bar to switch the rule view. There are 4 views to show the rules for ‘Sender’, ’Subject’, ‘Message’, ‘Compound’. ■Spam filtering: MailCat generates a spam filter by learning from spam and ham messages in INBOX. Just follow the steps, you can have your own spam filter. 1. Tap 'Edit' button in Monitor. 2. Pick up several mail messages by tapping each table cell. 3. Tap "SPAM" button on the command bar. 4. Likewise pick up mails, and "HAM" button on the command bar. 5. "Pull down to Refresh" or "Long press on the navigation bar" triggers Machine learning, then a spam filter will be generated. 6. Repeat the steps(1-5) until the number of spams and hams reaches about 16. 7. After learning 16 spams and 16 hams, MailCat starts judging which mail is spam or not. 8. Check the filtering result on Monitor. 9. Correct errors and 'Pull down to Refresh" or "Long press( 2sec) on the navigation bar", re-learning starts and your spam filter gets smarter. Repeat the steps(8-9) until no errors are found. ■Mail Rules: There are 4 conditional fields for mail rules --- sender, subject, message, compound. Mail rules are only applied for 'INBOX'. To edit or create a mail rule, tap 'Edit' button on the Mailbox list. The selection menu appears, choose 'Rule'. Mail rules for ‘Sender’ will appear. Tap a Tab bar to switch a view . ■Other usage: Please visit support page. http://www.seimitsusakufu.com/iOS/mailapps/en/support.html ■Support: To get a further support , contact through the following mail address. support_seimitsu@jcom.home.ne.jp
Screenshots
Verdict
The clearest difference is price: Wi2Connect4 at Free against MailCat's $3.99. Wi2Connect4 also leads on review sentiment (9% vs 0%). MailCat's advantage is update cadence (every 4 months vs every 12 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Wi2Connect4 is free to download; MailCat costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 1.0 for Wi2Connect4 against 1.0 for MailCat. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 9% of Wi2Connect4's written reviews are positive against 0% of MailCat's.
Wi2Connect4 ships an update every 12 months, MailCat every 4 months. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.
| Parameter | Wi2Connect4 | MailCat |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 1.0 (1 ratings) | 1.0 (1 ratings) |
| Positive reviews | 9.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 12 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 9 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Wire and Wireless Co.,Ltd. | Seimitsusakufu LLC |
Customer experience
Wi2Connect4
MailCat
In-app purchases
Wi2Connect4
No in-app purchases
MailCat
No in-app purchases









