Best Block Unknown Text Apps

243+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated October 2026

The best block unknown text apps on iPhone average 4.5★ across 243+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.

Compare top Block Unknown Text Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1SpamJam: Spam Text BlockerSpamJam: Spam Text BlockerFree4.9★ (10)NoYesOct 2026
2Textkiller - Spam Text BlockerTextkiller - Spam Text BlockerFree4.3★ (13K)NoYesNov 2026
3Block Spam Texts | Dont TextBlock Spam Texts | Dont TextFree4.2★ (1.1K)NoYesNov 2026
4Whoscall: Caller ID & BlockWhoscall: Caller ID & BlockFree4.7★ (3K)YesYesNov 2026
5MsgGuard: Spam Text BlockerMsgGuard: Spam Text BlockerFree4.6★ (18)YesYesOct 2026
6Call & Text Blocker・Block SpamCall & Text Blocker・Block SpamFree4.4★ (46)NoYesOct 2026
7Robo Spam Text & Call BlockerRobo Spam Text & Call BlockerFree4.3★ (5K)NoYesNov 2026
8Spam Call and Text BlockerSpam Call and Text BlockerFree4.6★ (56)YesYesOct 2026

Top Picks for Block Unknown Text

SpamJam: Spam Text Blocker#1

SpamJam: Spam Text Blocker by Millenica LLC

Filter junk texts, block scams
Editor's Choice
🔧 Utilities
4.9(10 ratings)
FreeIn-App Purchases
SpamJam: Spam Text Blocker screenshot 1
SpamJam: Spam Text Blocker screenshot 2
SpamJam: Spam Text Blocker screenshot 3
SpamJam: Spam Text Blocker screenshot 4
SpamJam: Spam Text Blocker screenshot 5

This app intelligently filters unwanted text messages directly on your device, ensuring only confirmed spam is removed. It allows legitimate messages like delivery alerts and verification codes to reach your main inbox. Updates weekly to protect against the latest threats.

Textkiller - Spam Text Blocker#2

Textkiller - Spam Text Blocker by Mosaic S.r.l.

Block Unwanted Messages
Strong Contender
🔧 Utilities
4.3😐(13K ratings)
FreeIn-App Purchases
Textkiller - Spam Text Blocker screenshot 1
Textkiller - Spam Text Blocker screenshot 2
Textkiller - Spam Text Blocker screenshot 3
Textkiller - Spam Text Blocker screenshot 4
Textkiller - Spam Text Blocker screenshot 5
Textkiller - Spam Text Blocker screenshot 6

This app automatically blocks unwanted spam text messages, protecting you from scams and telemarketing. It offers customizable filtering options, a constantly updated global block list, and a privacy-first approach to keep your inbox clean and your personal information secure.

What We Love

  • 🚀 Stops spam texts
  • 👍 Filters messages effectively
  • 💡 Keyword blocking
  • 🚀 Works well when functioning
  • 👍 Useful for reducing spam

Room to Improve

  • 🐛 App not working after updates
  • 🐛 Issues with premium features
  • 🔍 Concerns about privacy and data access
  • 🐛 Inconsistent performance
  • 💰 Expensive subscription
Block Spam Texts | Dont Text#3

Block Spam Texts | Dont Text by Tyler Kennedy

Free Junk SMS Message Filter
Worth Considering
🔧 Utilities
4.2😐(1.1K ratings)
FreeIn-App Purchases
Block Spam Texts | Dont Text screenshot 1
Block Spam Texts | Dont Text screenshot 2
Block Spam Texts | Dont Text screenshot 3
Block Spam Texts | Dont Text screenshot 4
Block Spam Texts | Dont Text screenshot 5
Block Spam Texts | Dont Text screenshot 6

This app automatically filters unwanted spam text messages by sending them to a dedicated junk folder. It offers customizable filtering options, including blocking by email addresses, keywords, and phone number area codes, ensuring you only see important messages.

What We Love

  • 🚀 Effective at blocking spam
  • 👍 Easy to set up and use
  • 💰 Free version available
  • 🙌 Helpful customer support

Room to Improve

  • 🐛 Filters not always effective
  • ❌ Paid version doesn't work as expected
  • 🤔 Blocks legitimate messages
  • ⚠️ Inconsistent performance over time

More Block Unknown Text apps to explore

FAQ about Block Unknown Text

What are the best block unknown text apps for iPhone?
SpamJam: Spam Text Blocker tops our block unknown text apps ranking as of October 2026, with a 4.9-star average from 10 App Store ratings, and it's free to download.
Yes — 20 of the top block unknown text apps we rank are free to download, including SpamJam: Spam Text Blocker and Textkiller - Spam Text Blocker.
SpamJam: Spam Text Blocker has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 243+ block unknown text apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.