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Number Shield

Number Shield

Stop caller ID spoofers

1.9K ratings
341 reviews
#51 in paid Utilities
🔧 Utilities
$2.99

Details

  • Released
  • Updated
  • December 2, 2017
  • September 15, 2025

Developer

Kinnaman Software LLC
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Number Shield screenshot #1 for iPhone
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📈no. 51
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Reviews summary↘︎
⭐341
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📝6+ tags
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🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
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About

Block unwanted calls and texts from scammers who use fake phone numbers. Easily block entire groups of similar numbers using wildcards. Your contacts are always safe, and blocked calls go to voicemail.

✓Block similar numbers with wildcards
✓Block international numbers
✓Contacts automatically allowed
✓Block from missed calls screen
✓Send blocked calls to voicemail
✓Send blocked texts to Junk filter
Show original description

What users say

Summarized from real user reviews of Number Shield. Based on 1.9K reviews and a 4.5/5 average, it highlights the 6 positives and 5 negatives reviewers mention most about this Utilities app.

Positive things

  • 🚀Blocks calls effectively
  • 👍Simple and easy to use
  • 🔒Protects from spam calls
  • 💡Allows blocking entire area codes
  • ⭐Works as expected
  • 🙌Reduces spam calls significantly

Negative things

  • 🐛Crashes or freezes
  • 🔍Limited number of numbers that can be blocked
  • 🤔Doesn't always block all spam calls
  • 🤷‍♀️Doesn't block text messages
  • ⚠️Lacks customer support
See all reviews

What's New in Number Shield

3.3

September 15, 2025

Updated for iOS 26.

Charts

Top Paid

📈 51+15

Utilities

This app rose +15 positions in Utilities chart.

Last updated on September 2, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Doesn’t work

I paid the subscription and it still doesn’t work. I get spam voicemails and in the recent calls section the number is there with it saying blocked by Number Shield. It says it blocked the calls that left a voicemail! Doesn’t make sense. App removed…
TeeRay23TeeRay23

Does not work

Loaded all the spam #’s as instructed. Says over a million numbers blocked.
Still get spam from blocked numbers.
Gold rush bobGold rush bob

Not 2.99

Charged me $8.55
jwdarnelljwdarnell

Doesnt work (in the UK)

Sadly this doesnt seem to work at all - have blocked all 0843 numbers yet i continue to get called by them every couple if days
RaithlinsRaithlins

Trash

This app is charging for the same thing my phone does
Giana MajestyGiana Majesty
See 336 more reviews

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User experience

🐞

Reported Bugs

4 issues

App freezes when adding new numbers

Bug

Blocked numbers still receive calls

Bug

Database errors cause app to malfunction

Bug

Compatibility issues with newer iOS versions

Bug
✨

Requested Features

5 requests

Add ability to block text messages

Feature

Increase number of numbers that can be blocked

Feature

Improve stability and reduce crashes

Feature

Add option to block entire country codes

Feature

Provide better customer support

Feature

FAQ

What does Number Shield do?

Number Shield helps you block unwanted calls and text messages from scammers who hide behind fake phone numbers. It allows you to block entire groups of similar numbers at once by using wildcards in the number patterns.

How do I block similar numbers?

You can block similar numbers by entering a wildcard for each digit you want to block. For example, to block numbers similar to 714-555-1234, you could enter 714-555-####. You can also block numbers directly from your missed calls screen by sharing the contact and selecting 'Block Similar Numbers'.

Is Number Shield free to use?

Yes, based on the provided information, Number Shield is available for free. There are no in-app purchases or advertisements mentioned.

What happens to blocked calls and texts?

Blocked calls are automatically sent directly to your voicemail. Blocked text messages are sent to the 'Junk' filter within your phone's Messages app. Please note that iMessage messages are not blocked.

Can I still receive calls from my contacts?

Yes, phone numbers that are saved in your contacts are always allowed. This ensures you will not miss important calls or messages from your family and friends.