Comparison

SMS SPAM Filter vs Robot Spam Text Blocker

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

Head to head
About

SMS SPAM Filter

Block unwanted SMS messages with customizable rules and AI-powered evaluation. Protect your privacy by filtering messages based on sender, content, or country code, all processed offline on your device.

Highlights
  • Customizable blocking rules
  • Block by expression
  • Block by phone number
  • Block by country code
  • Block by area code
  • AI-powered message evaluation
  • Offline processing
Read full description

Simple and easy to use mobile application for blocking of disturbing SMS. You can create your own rules or just use predefined. You are able to block messages by expression, by phone number, using the phone number country code to block senders from specific countries or by telephone area code. Artificial Intelligence can also help with evaluation. The evaluation of your SMS messages is offline without contacting any server, is executed only on your device and your messages are not sent through any communication channel.

About

Robot Spam Text Blocker

This app provides immediate relief from unwanted spam, telemarketing, and robot texts. It automatically blocks messages from an extensive, growing list of numbers and allows users to manually block or allow specific numbers and keywords. A free trial is available before a subscription is required for full service.

Highlights
  • Automatic spam blocking
  • Manual number blocking/allowing
  • Keyword blocking
  • Weekly spam list updates
  • Dedicated customer support
  • Free trial period
Features
Read full description

Are spam texts ringing your phone on a regular basis? Robot Text Blocker offers immediate relief from over 300,000 spam, telemarketing and robot texting phone numbers.  Receiving spam text messages? We block them. Tired of receiving spam text messages? Us too. Robot Text Blocker reduces unwanted texts by up to 99%! We have collected an extensive list of spam numbers that is growing daily. Robot Text Blocker offers a free trial period; opt-out at any time during the trial and you aren't charged a penny. A subscription is required to utilize the service. KEY BENEFITS: - Automatically blocks spam and robo texts from our extensive spam list - Take control! Bad number got through? Block it! Good number got blocked? Allow it! - Spam list is updated weekly! - Block and allow specific keywords from messages to customize your experience! - Dedicated customer service team with help from real humans! In-App Purchase: Robot Text Blocker is a free download, with a free trial period to use the app completely risk-free, before purchasing the service. If you purchase the service, you will be charged a monthly or yearly price according to your country and which item you purchase. The price will always be shown in the app before you complete a purchase. Payment will be charged to your iTunes Account at confirmation of purchase. Your Robot Text Blocker subscription automatically renews at the end of every billing period (as determined by your purchase of monthly or yearly service) and your iTunes account will automatically be charged within 24 hours prior to the end of the current period. You can turn off auto-renew at any time from your iTunes Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms of Service: https://app.termly.io/document/terms-of-use-for-website/c172266f-31f4-46b1-b08f-a5cb5cb7803e Privacy Policy: https://www.brantleymediagroup.com/robot-text-blocker-privacy-policy

Screenshots

SMS SPAM Filter4 screens
Robot Spam Text Blocker4 screens

Verdict

The call

The clearest difference is in-app purchases: SMS SPAM Filter at none against Robot Spam Text Blocker's 4. SMS SPAM Filter also leads on update cadence (weekly vs every 5 weeks) and iOS requirement (11.0 vs 15.0). Robot Spam Text Blocker's advantage is review sentiment (50% vs 33%) and ratings volume (54 vs 8). On price, rating, ads and device support 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. Robot Spam Text Blocker sells 4 in-app purchases, starting at $3.99 per month. SMS SPAM Filter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.8 for SMS SPAM Filter against 3.9 for Robot Spam Text Blocker. That said, the two scores are not equally well evidenced: Robot Spam Text Blocker has 54 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 33% of SMS SPAM Filter's written reviews are positive against 50% of Robot Spam Text Blocker's.

UpkeepUpdate frequency

SMS SPAM Filter ships an update weekly, Robot Spam Text Blocker every 5 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
SMS SPAM Filter versus Robot Spam Text Blocker: the parameters behind the verdict, then further details
ParameterSMS SPAM FilterRobot Spam Text Blocker
PriceFreeFree
Rating3.8 (8 ratings)3.9 (54 ratings) — better
Positive reviews33.3% of reviews50.0% of reviews — better
Number of ratings854 — better
Update frequencyWeekly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size44 MB17 MB
Age rating4+4+
DeveloperMichal IndraMurphy Brantley

Customer experience

SMS SPAM Filter

All ratings9 ratings
Positive66.7%
Neutral11.1%
Negative22.2%
Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

Robot Spam Text Blocker

All ratings53 ratings
Positive69.8%
Neutral5.7%
Negative24.5%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

SMS SPAM Filter

No in-app purchases

4 purchases

Robot Spam Text Blocker

Subscriptions4
  • Unlimited Text Blocking3 Days trial$3.991 Month
  • Unlimited Text Blocking7 Days trial$29.991 Year
  • Unlimited Text Blocking1 Year trial$29.991 Year
Show 1 more
  • Unlimited Text Blocking1 Month trial$29.991 Year

Questions

Is SMS SPAM Filter free?
SMS SPAM Filter is free to download, with no in-app purchases.
Is Robot Spam Text Blocker free?
Robot Spam Text Blocker is free to download, with in-app purchases available.
Which has better reviews, SMS SPAM Filter or Robot Spam Text Blocker?
Robot Spam Text Blocker is rated higher. SMS SPAM Filter averages 3.8 out of 5 from 8 ratings, while Robot Spam Text Blocker averages 3.9 from 54 ratings.
Do SMS SPAM Filter or Robot Spam Text Blocker have ads?
Neither SMS SPAM Filter nor Robot Spam Text Blocker shows ads.
Which is updated more often, SMS SPAM Filter or Robot Spam Text Blocker?
SMS SPAM Filter ships an update weekly, and Robot Spam Text Blocker every 5 weeks. Most recently, SMS SPAM Filter was updated on November 2, 2026 and Robot Spam Text Blocker on November 3, 2026.

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