SpamBlocker vs Cleanfox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SpamBlocker
This app helps manage unwanted emails by reassigning spam mailboxes and filtering incoming messages. It uses machine learning and rule-based systems to identify and block junk mail, supporting IMAP/POP3 accounts. It does not have mail sending capabilities.
- Spam/Trash mailbox reassignment
- Machine learning spam filtering
- Rule-based filtering (sender, subject)
- IMAP/POP3 support
- HTML image blocking
- Multi-account support
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■SpamBlocker supports Spam/Trash mailbox’s reassignment. Some (IMAP) mail servers support a machine learning spam filtering by using the mail data in the spam mailbox. If the spam mailbox matches between SpamBlocker and the mail server, SpamBlocker can feedback its spam filtering result to the mail server. Then the spam mail traffic can be reduced. ■SpamBlocker provides a spam filtering feature SpamBlocker(the usage is explained at the online help in the App) can filter out spams(junk mails) from the incoming mail messages by a spam filter which is generated by the SpamBlocker's built-in machine learning engine. SpamBlocker also supports 'rule based' filtering by specifying "sender's mail address" or "subject"'s substring. SpamBlocker supports IMAP/POP3 and can access only Inbox, spam box, trash box. SpamBlocker has no mail sending facility. As for the POP3 mail filtering, SpamBlocker has to get started before other mailers, otherwise spams will be downloaded to other mailers because POP3 has no synchronization mechanism . SpamBlocker supports HTML image blocking. SMS/MMS are not supported. SpamBlocker adapts the advertising free application model, but it has no resident toolbar, so the client area with an advertisement banner isn't narrower than other standard iOS applications. ■Main Features: •Fast machine learning engine optimized for a mobile device ◦Learn ham and spam mail messages to generate a spam filter ◦Spam filtering time is very short compared with mail messages downloading time. ◦Multi-language. In this version, only English and Japanese are supported. European languages will be OK if it's based on alphabets. ◦Multi-account ■How to connect to an mail server: To connect an 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 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 the navigation bar to move around mailboxes * Move/Delete/Mark mail messages by the toolbar on the navigation bar * Tap/Swipe the navigation bar to turn over mail messages * Swipe To POP3 server to move back a mail to POP3 server. * Add a mail to the blacklist/spam learning data by swiping a cell ■Spam filtering: SpamBlocker 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, SpamBlocker is ready to start judging which mail is spam or not. Set the spam filter switch on the account setting if you want to start the spamfiltering. 8. Check the filtering result on Monitor. 9. Correct errors and 'Pull down to Refresh" or "Long press on the navigation bar", re-learning starts and your spam filter gets smarter. Repeat the steps(8-9) until no errors are found. ■Spam Rule Filtering: Please don't forget about turning on "Spam Rule switch" at the account setting after setting rules. ■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 ■Copyright: Some of icons in this software are designed by Icons8 (http://icons8.com)
Cleanfox
This app helps you declutter your inbox by deleting unwanted emails and unsubscribing from newsletters with a simple swipe. It organizes your subscriptions, identifies senders filling your inbox, and offers powerful spam protection. Recover accidentally deleted emails and even plant trees by referring friends.
- Delete thousands of emails with one tap
- Unsubscribe from unwanted newsletters
- Organize subscriptions in one place
- Identify senders filling your inbox
- Undo accidental deletions
- Spam protection
- Plant trees by referring friends
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Drowning in spam and newsletters? Missing important emails in the clutter? Running out of storage space? Cleanfox is a free email cleaner and unsubscribe app that helps you take back control of your inbox in minutes and boost your productivity. Our spam email blocker lets you delete thousands of unwanted emails with one tap, unsubscribe from emails you never read, and finally see what matters. TRUSTED BY MILLIONS "This app is 100% free - no ads, no restrictions and no limitations on how much you can use it." - The Economic Times "Cleanfox is an app that helps users unsubscribe from newsletters, and has so far 'cleaned' over 30 million emails." - Tech.eu CLEAN YOUR INBOX IN SIMPLE SWIPES Cleanfox is your inbox cleaner that shows you all your subscriptions in one place. Just swipe left or right to decide what to do with each newsletter: • Unsubscribe: never receive emails from that sender again • Keep: stay subscribed and keep old emails • Delete: stay subscribed but remove old emails to free up storage It's that simple! Our mail spam cleaner makes it easy to clean spam in minutes. SMART EMAIL ORGANIZATION Our email organizer automatically groups your newsletters and shows you: • Which subscriptions you never open • How many emails each sender has sent you • Which ones are filling up your inbox This free inbox cleaner makes it easy to spot spam you forgot you signed up for and achieve a clean inbox instantly. ACCIDENTALLY DELETED SOMETHING IMPORTANT? Don't worry! Cleanfox has a reverse button so you can easily undo any deletion. Your important emails are always recoverable. POWERFUL SPAM PROTECTION Our free email spam blocker provides spam protection that stops unwanted senders permanently. Unsubscribe from emails free with one tap: no costs, no limits. Say goodbye to cluttered inboxes forever with our mailbox cleaner. WORKS WITH ALL EMAIL PROVIDERS Gmail, Outlook, Yahoo Mail, Hotmail, iCloud, AOL - our inbox clean solution supports every email service. Manage multiple accounts in one place and clean them all at once. REAL RESULTS FROM REAL USERS - "It's so easy to use and has cut out all my unwanted emails." - "This app is hands down one of the most useful apps I've ever used." - "It is by far the easiest, fastest way or app to delete & unsubscribe from emails you do not want." - "My email is finally much more manageable. The best is: it's free." YOUR PRIVACY IS PROTECTED • GDPR compliant - we follow strict European privacy standards • We never read or sell your personal emails - your data stays safe and private • 100% transparent - learn exactly how we protect your information We're a 100% free service published by NielsenIQ, which specializes in e-commerce market research. We design our products to respect user privacy. BONUS: PLANT TREES WHILE YOU CLEAN For every friend you refer to Cleanfox, you can plant a tree in Zambia. Clean your inbox and help reforestation efforts at the same time. WHY CLEANFOX? • Free clean email inbox cleaner - no ads, no hidden fees, no premium tiers required • Email unsubscribe app with simple swipe gestures • Spam email blocker that stops unwanted senders permanently • Email organizer that groups and manages subscriptions automatically • Mail spam cleaner that bulk deletes thousands of emails instantly • Free up storage space with our mailbox cleaner • Free inbox cleaner that works with all email providers • Unsubscribe from emails free - no costs, no limits • Stop missing important emails buried in clutter • GDPR compliant DOWNLOAD NOW Join millions of users who've reclaimed their inboxes. Download Cleanfox today and experience the cleanest, most organized inbox of your life. Support: support@cleanfox.io Social Media: @cleanfoxapp Website: www.cleanfox.io
Screenshots
Verdict
The clearest difference is review sentiment: Cleanfox at 72% against SpamBlocker's 14%. Cleanfox also leads on rating (4.8 vs 2.8) and in-app purchases (none vs 1). On price, 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
Both are free to download. SpamBlocker sells 1 one-off in-app purchase. Cleanfox asks for nothing beyond the download.
Cleanfox holds the better App Store score, 4.8 against 2.8. That said, the two scores are not equally well evidenced: Cleanfox has 27K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 14% of SpamBlocker's written reviews are positive against 72% of Cleanfox's.
SpamBlocker ships an update every 3 months, Cleanfox every 3 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | SpamBlocker | Cleanfox |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (6 ratings) | 4.8 (27K ratings) — better |
| Positive reviews | 13.9% of reviews | 71.5% of reviews — better |
| Number of ratings | 6 | 27K — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #188 — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 7 MB | 67 MB |
| Age rating | 4+ | +4 |
| Developer | Seimitsusakufu LLC | FOXINTEL |
Customer experience
SpamBlocker
Cleanfox
Bugs and requests
SpamBlocker
Not enough reviews yet to summarise bugs or requests.
Cleanfox
Reported bugs
4 issues- Endless scanning/loading issues
- Login/authentication problems
- Emails not actually deleted after using the app
- Inconsistent behavior across devices
Requested features
5 requests- Ability to selectively delete/keep emails
- Option to view email contents before deleting
- Undo/restore deleted emails
- Automatic email categorization and organization
- Improved integration with various email providers
In-app purchases
SpamBlocker
- Remove Ad&Limitation$0.99
Cleanfox
No in-app purchases









