MailCat vs SMS Forwarder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
SMS Forwarder
Automate the forwarding of SMS messages to various platforms like email, Telegram, and Slack. Filter messages by keywords, schedules, or blacklists to ensure only important information is sent. Ideal for professionals managing OTPs, 2FA codes, and client updates.
- Automated SMS forwarding
- Multi-channel destination support
- Keyword and blacklist filtering
- Schedule-based forwarding rules
- Forwarding to email, Telegram, WhatsApp, Slack, Teams
- Preserves real sender information
- iOS Shortcuts support
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SMS Forwarder – Forward SMS is the ultimate text forwarding and automation tool designed for business people, accountants, administrators, and productivity-focused professionals who need their messages delivered exactly where they work. Whether you’re managing OTPs, sms code, 2FA forwarder workflows, client updates, or team notifications, this powerful sms forwarder keeps all your important information synced and accessible—instantly and automatically. Automate Your Workflow With Smart SMS Forwarding Stop switching between apps and devices. With advanced rules and multi-channel support, SMS Forwarder – Forward SMS makes it effortless to forward sms, text forward, or redirect sms to your preferred platforms. The app supports forwarding to Email, Telegram, WhatsApp, SMS, Discord, Slack, Microsoft Teams, and Webhook—perfect for teams that operate across multiple tools. Powerful Automation Features Unlock a highly customizable auto redirect and auto forward sms system: • Keyword-based filtering – Forward only the messages that matter. • Blacklist filtering – Block unwanted senders, spam, and irrelevant texts. • Schedule-based forwarding – Run forwarding rules only during certain hours or business days. • Multiple destinations – Send one message to several platforms at once. • Custom HTTP headers & methods – Ideal for developers and custom API workflows. • Retry-on-failure – Ensures your important sms code, OTP, or alerts arrive even if a delivery fails. Perfect for OTP, 2FA, and Authentication Codes Professionals who rely on security workflows will love the app’s precision. Easily share 2fa code, otp share, or transfer sms authentication messages to secure platforms. Forward sensitive 2FA messages to Slack, email, private webhooks, or any system you trust. Integrations That Boost Productivity From sms to email to sms to Slack, sync sms to Slack, or even forward sms to email, the app removes manual copy-paste steps forever. With rich destination options, it becomes the hub that keeps your entire communication ecosystem connected. Built for Accuracy & Reliability Unlike basic forwardsms tools, you get: • Real sender information preserved • Test message functionality to confirm setup • iOS Shortcuts support for next-level automation • Enable/disable toggle for each destination • Video setup guides and interactive walkthroughs Customizable & Easy to Use Adapt the experience to your workflow: • Clean and modern interface • Light, Dark, and System themes • Intuitive rule setup • Designed for both beginners and power users Why Business People & Accountants Love It Professionals appreciate having all important messages—bank alerts, transaction codes, client updates, verification codes—automatically organized and delivered to their working tools. No more missed OTPs. No more digging through phones. No more switching apps during busy workdays. What Makes This App Unique SMS Forwarder – Forward SMS isn’t just a text forwarding app; it’s a complete automation engine that handles text message forwarding, text transfer, and sms forward workflows with precision and reliability. Designed with enterprise-level flexibility, it solves real productivity challenges by eliminating manual steps, reducing errors, and ensuring your SMS data is always where you need it. Terms of Use: https://smsforward.app/terms Privacy Policy: https://smsforward.app/privacy EULA: https://smsforward.app/eula
Screenshots
Verdict
The clearest difference is review sentiment: SMS Forwarder at 80% against MailCat's 13%. SMS Forwarder also leads on price (Free vs $3.99) and rating (4.6 vs 1.0). MailCat's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement 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
SMS Forwarder is free to download; MailCat costs $3.99 up front. SMS Forwarder sells 4 in-app purchases, starting at $4.99 per 7 days. MailCat asks for nothing beyond the download.
SMS Forwarder holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: SMS Forwarder has 33 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 13% of MailCat's written reviews are positive against 80% of SMS Forwarder's.
MailCat ships an update every 4 months, SMS Forwarder every 9 days. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.
| Parameter | MailCat | SMS Forwarder |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 1.0 (1 ratings) | 4.6 (33 ratings) — better |
| Positive reviews | 13.0% of reviews | 80.0% of reviews — better |
| Number of ratings | 1 | 33 — better |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Seimitsusakufu LLC | MOV DIGITAL LTD |
Customer experience
MailCat
SMS Forwarder
In-app purchases
MailCat
No in-app purchases
SMS Forwarder
- Premium Weekly$4.997 Days
- Premium Annual$19.991 Year
- Premium Yearly3 Days trial$39.991 Year
- Premium Lifetime$79.99









