Comparison

SpamBlocker vs Clean Email

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Spam/Trash mailbox reassignment
  • Machine learning spam filtering
  • Rule-based filtering (sender, subject)
  • IMAP/POP3 support
  • HTML image blocking
  • Multi-account support
Features
Read full description

■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)

About

Clean Email

This app helps you declutter your inbox by unsubscribing from unwanted senders, bulk deleting emails, and automating cleanup. It offers features to block senders, get data breach alerts, and organize your mail efficiently. Take control of your inbox and save time daily.

Highlights
  • Bulk delete emails
  • Unsubscribe from senders
  • Block and screen senders
  • Automate email cleanup
  • Data breach alerts
  • Organize inbox
Features
Read full description

Overwhelmed by emails? Clean Email helps you clean up your inbox in minutes. Join almost 2 million people who've deleted billions of unwanted emails. "Of the handful I tested, I liked Clean Email best. Before using Clean Email, I had 17,677 unread emails. Now, it’s a fraction of that." – Nicole Nguyen, Wall Street Journal. - - - - - - - - - - - Easily unsubscribe from annoying senders, organize emails, and bulk delete stuff you want to get rid of. Tap Get and try for yourself! Clean Email was created because email providers don’t offer the tools to manage and keep mailboxes clean and efficient. Over the past 10 years in business, we’ve grown to almost 2 million users, who we help clean billions of emails each year. WHAT CHANGES WITH CLEAN EMAIL • Find what matters, fast. Important emails stop getting lost under promotions and newsletters. • Get your time back. No more deleting the same junk by hand every morning. • An inbox that stays clean. Set it up once, and new clutter is handled automatically. • Free up storage. Clear years of old emails instead of paying for more space. • Less stress, more focus. Open your inbox without the dread. OUR FAVORITE FEATURES • Unsubscriber shows you all your subscriptions so you can get rid of senders and unsubscribe from emails you don’t want with a single tap. • Cleaning Suggestions show you types of emails people usually delete or archive, so you always know where to start your journey to a cleaner inbox. • Smart Folders automatically organize your inbox by categories like ride-share receipts, job search emails, and seasonal sales, so you can easily find emails and delete whole categories at once. • Keep Newest keeps only the latest emails from senders you like, but don’t want them clogging up your storage. • Auto Clean is for the power email users who need to automate their inbox with very advanced rules. • Screener allows you to block all mail from unknown senders. Review screened senders and decide who you want to keep and who to remove, thereby reducing the amount of spam and junk mail incoming. • Select All and Delete lets you delete your entire inbox or delete thousands of emails at once. • Privacy Monitor keeps your email safe by alerting you when your email has been linked to a data breach. WORKS WITH THE EMAIL YOU ALREADY USE Clean Email works with your existing email and favorite email apps – no need to change anything to get a cleaner inbox: Gmail, iCloud, Yahoo, Hotmail, Outlook, Office 365, AOL, Zoho, Fastmail, GMX Mail, and all IMAP accounts. TRY IT FREE We won’t charge you a penny to clean your first 1,000 emails. Clean Email will also unsubscribe you from 25 newsletters and run Screener and Auto Clean rules for 14 days, so you can see how they help keep you on track at no cost. Choose an auto-renewing subscription to unlock all our powerful email cleaning, unsubscribing, blocking, and automation features. Prices start at just $9.99/month for one email account, or take advantage of our yearly plans, saving you 75% off the monthly rate. YOUR PRIVACY We’re in the business of cleaning emails, not selling, storing, reading, or analyzing your data. We are Google-verified and certified secure, so you never need to give us your email login info. You can find our EULA and Terms of Service here: https://clean.email/privacy

Screenshots

SpamBlocker4 screens
Clean Email4 screens

Verdict

The call

The clearest difference is rating: Clean Email at 4.5 against SpamBlocker's 2.8. Clean Email also leads on ratings volume (3.8K vs 6) and review sentiment (40% vs 21%). SpamBlocker's advantage is monetization model (free vs free with in-app purchases). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SpamBlocker sells 1 one-off in-app purchase and Clean Email sells 8 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Clean Email holds the better App Store score, 4.5 against 2.8. That said, the two scores are not equally well evidenced: Clean Email has 3.8K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 21% of SpamBlocker's written reviews are positive against 40% of Clean Email's.

UpkeepUpdate frequency

SpamBlocker ships an update every 3 months, Clean Email every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
SpamBlocker versus Clean Email: the parameters behind the verdict, then further details
ParameterSpamBlockerClean Email
PriceFreeFree
Rating2.8 (6 ratings)4.5 (3.8K ratings) — better
Positive reviews21.0% of reviews40.1% of reviews — better
Number of ratings63.8K — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.614.0 — better
Further details — not scored
Size7 MB8 MB
Age rating4+4+
DeveloperSeimitsusakufu LLCClean Email, LLC

Customer experience

SpamBlocker

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews62 reviews
Positive21.0%
Neutral6.5%
Negative72.6%

Clean Email

All ratings3,792 ratings
Positive87.2%
Neutral2.5%
Negative10.4%
Written reviews299 reviews
Positive40.1%
Neutral5.4%
Negative54.5%

Bugs and requests

SpamBlocker

Not enough reviews yet to summarise bugs or requests.

Clean Email

Reported bugs

4 issues
  • Login issues, app won't open
  • Deletes important emails by mistake
  • Syncing problems across devices
  • Unreliable unsubscribe functionality

Requested features

5 requests
  • Bulk unsubscribe option
  • Ability to exclude specific emails from cleaning
  • Improved email organization tools
  • Support for more email providers
  • Easier subscription management

In-app purchases

1 purchases

SpamBlocker

One-time1
  • Remove Ad&Limitation$0.99
8 purchases

Clean Email

Subscriptions8
  • Clean 1 Account3 variants$9.991 Month
  • Clean 5 Accounts$19.991 Month
  • Clean 5 Accounts$29.991 Month
Show 5 more
  • Clean 1 Account$29.991 Year
  • Clean 1 Account$49.991 Year
  • Clean 5 Accounts$49.991 Year
  • Clean 5 Accounts$69.991 Year
  • Clean 10 Accounts$99.991 Year

Questions

Is SpamBlocker free?
SpamBlocker is free to download, with in-app purchases available.
Is Clean Email free?
Clean Email is free to download, with in-app purchases available.
Which has better reviews, SpamBlocker or Clean Email?
Clean Email is rated higher. SpamBlocker averages 2.8 out of 5 from 6 ratings, while Clean Email averages 4.5 from 3.8K ratings.
Do SpamBlocker or Clean Email have ads?
Neither SpamBlocker nor Clean Email shows ads.
Which is updated more often, SpamBlocker or Clean Email?
SpamBlocker ships an update every 3 months, and Clean Email every 2 months. Most recently, SpamBlocker was updated on November 1, 2026 and Clean Email on November 6, 2026.

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