Comparison

Spam Defender vs 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

Spam Defender

Block unwanted calls and filter spam SMS messages. This app helps protect your privacy by identifying and blocking telemarketers, spammers, and scammers. It offers daily updates with suspicious caller lists and a reverse phone number lookup feature.

Highlights
  • Block unwanted calls
  • Filter SMS spam
  • Reverse phone number lookup
  • Personal black list
  • Daily suspicious caller updates
  • Privacy focused
Features
Read full description

Protect yourself and stop unwanted calls from telemarketers, spammers, and scammer with Spam Defender! ============================================ TOP FEATURES OF SPAM DEFENDER & CALL BLOCKER: ============================================ • Download our call blocker app for FREE • Stop unwanted calls from telemarketers & spammers • Best Reverse phone number lookup, land line and mobile phone • Add phone numbers to your personal black list • Filter SMS spams with certain keywords • Daily updates with new list of suspicious callers and robo calls • Frequently updated algorithm to fight spams and unwanted calls.  • We do not ask for your number or access to yours contacts, we respect your privacy! This utility app helps you fend off aggressive callers who only want to disturb your peace and privacy. We will automatically block numbers coming from suspicious sources. If you are looking for robo call blocker, try our app now! Telemarketers, spammers, and scammers take a lot of our time and can be dangerous for our privacy and security. This is why you need a powerful app to stop unwanted calls and block unknown callers. We always update our list of suspicious numbers to protect you from these annoying callers. We protect you from spam calls! PLEASE READ BEFORE USING: To be able to use our app please set up your phone: • Enable Spam Identification and Blocking on iOS 10 by going to Settings-> Phone-> Call Blocking & Identification • Enable SMS Filtering on iOS 11 by going to Settings-> Messages-> Unknown & Spam We always add new suspicious numbers to block so please update Spam Defender frequently to be able to get the latest list of suspicious numbers so you can always be protected against spammers without opening our app. Auto renew subscriptions Spam Defender offers three subscriptions A monthly subscription, A semestral subscription and an annual subscription. Each subscription unlock all the features: Probably the best caller ID Stop Spam SMS Reverse Number Loockup Please read our Terms and Conditions below before you subscribe: 

 Monthly subscription includes a free trial. You will not be charged until the free trial has expired. On the last day of the free trial period, unless you cancelled your subscription, you will be automatically charged the applicable subscription fee. The purchase will be charged to your iTunes account. If you purchase the service, you will be charged a monthly, semesterly 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. Once you're a subscriber, you can manage your subscription from iTunes or on your iOS unit after purchasing it, and you'll also be able to cancel the auto-renewing subscription from there.

On your iPhone, iPad, or iPod touch:
1 On the Home screen, tap Settings.
2 Tap iTunes and App Store.
3 Tap your Apple ID.
4 View Apple ID. You might need to sign in.
5 Under Subscriptions, tap Manage. If you don’t see a subscription in iTunes and are still being charged, make sure that you’re signed in with the correct Apple ID.
6 Tap the subscription that you want to manage.
7 Use the options to manage your subscription. You can choose a different subscription period, or turn off Automatic Renewal.
Turn off Automatic Renewal to cancel a subscription. Your subscription will stop at the end of the current billing cycle. 
 Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. Deleting the app does not cancel the subscription. You can, however, cancel a subscription even after you've deleted the app.
 The subscription will auto-renew 24 hours before the subscription period ends, with the same kind of subscription you already bought, to the same price.

For more information about the terms of use, please visit: 
https://www.fabbrica18.com/terms/

About

Spam Text Blocker

This app filters out unwanted spam and scam texts, keeping your inbox clean and organized. It intelligently sorts messages into categories, ensuring you only see important communications. Advanced AI detects and blocks deceptive texts, protecting you from financial loss.

Highlights
  • Spam text blocking
  • Scam detection
  • Inbox organization
  • Transaction/Promotion sorting
  • AI-powered filtering
  • Privacy-focused
Read full description

Say goodbye to annoying spam texts, cluttered inboxes, and tricky scams. Keep your inbox for those texts you actually care about. TextShield shields your text message inbox with advanced filtering and intelligent sorting that keeps your inbox clean. NO MORE SPAM TEXTS Over 350 million spam texts are sent each day. Our advanced filtering system ensures that these unwanted messages won't reach your inbox. NO MORE INBOX CLUTTER Can't find your real messages between the reminders, codes, and updates? TextShield efficiently organizes your inbox so that important messages stand out. We support filtering into Transactions, Promotions folders, as well as any of 12 subfolders such as Reminders, Orders, Coupons, etc. NO MORE SCAMS Text scams steal about $10 billion each year. TextShield uses sophisticated scam detection algorithms to ensure that only real, meaningful texts get through. Our advanced AI analysis can identify 99.6% of deceptive texts and makes sure that they don't make their way into your inbox. PRIVACY-FIRST We don't show ads or do anything with your data that you wouldn't expect. We don't ask for any personal information, nor do we want it. TEXTSHIELD PRO Put spam blocking and text sorting on auto-pilot with our auto-updating smart rules and proactive threat detection. Available for $3.99 per month or $29.99 per year, both with a 7-day free trial. These subscriptions provide access to all TextShield features and services. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Payment will be charged to your App Store account at confirmation of purchase. You can manage your subscriptions and turn off auto-renewal by going to your 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 AND PRIVACY POLICY By using TextShield, you agree to our Terms of Service and Privacy Policy. Terms of Service: https://textshield.io/terms Privacy Policy: https://textshield.io/privacy SUPPORT & FEEDBACK If you ever need help, or have something you'd like us to add to TextShield, please send us an email at support@textshield.io. We offer dedicated support and respond personally to each and every email.

Screenshots

Spam Defender3 screens
Spam Text Blocker4 screens

Verdict

The call

The clearest difference is rating: Spam Text Blocker at 4.3 against Spam Defender's 3.1. Spam Text Blocker also leads on monetization model (free with in-app purchases vs subscription) and ratings volume (131 vs 15). Spam Defender's advantage is update cadence (every 10 days vs every 6 weeks) and iOS requirement (12.0 vs 16.0). On price, review sentiment, 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. Spam Defender sells 3 in-app purchases, starting at $0.99 per month and Spam Text Blocker sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Spam Text Blocker holds the better App Store score, 4.3 against 3.1. That said, the two scores are not equally well evidenced: Spam Text Blocker has 131 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 48% of Spam Defender's written reviews are positive against 50% of Spam Text Blocker's.

UpkeepUpdate frequency

Spam Defender ships an update every 10 days, Spam Text Blocker every 6 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Spam Defender versus Spam Text Blocker: the parameters behind the verdict, then further details
ParameterSpam DefenderSpam Text Blocker
PriceFreeFree
Rating3.1 (15 ratings)4.3 (131 ratings) — better
Positive reviews48.4% of reviews50.0% of reviews — better
Number of ratings15131 — better
Update frequencyEvery 10 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size35 MB21 MB
Age rating4+4+
DeveloperAGON CONSULTING DI LUCA PRADELLA E C. SASFathomTel, Inc.

Customer experience

Spam Defender

All ratings15 ratings
Positive46.7%
Neutral6.7%
Negative46.7%
Written reviews62 reviews
Positive48.4%
Neutral3.2%
Negative48.4%

Spam Text Blocker

All ratings119 ratings
Positive84.9%
Neutral2.5%
Negative12.6%
Written reviews14 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

3 purchases

Spam Defender

Subscriptions3
  • Defender+1 Month trial$0.991 Month
  • Six Months Subscription$4.996 Months
  • Annual subscription$8.491 Year
2 purchases

Spam Text Blocker

Subscriptions2
  • TextShield Pro - Monthly7 Days trial$3.991 Month
  • TextShield Pro - Annual7 Days trial$29.991 Year

Questions

Is Spam Defender free?
Spam Defender is free to download, with in-app purchases available.
Is Spam Text Blocker free?
Spam Text Blocker is free to download, with in-app purchases available.
Which has better reviews, Spam Defender or Spam Text Blocker?
Spam Text Blocker is rated higher. Spam Defender averages 3.1 out of 5 from 15 ratings, while Spam Text Blocker averages 4.3 from 131 ratings.
Do Spam Defender or Spam Text Blocker have ads?
Neither Spam Defender nor Spam Text Blocker shows ads.
Which is updated more often, Spam Defender or Spam Text Blocker?
Spam Defender ships an update every 10 days, and Spam Text Blocker every 6 weeks. Most recently, Spam Defender was updated on October 29, 2026 and Spam Text Blocker on October 30, 2026.

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