Comparison

Number Shield vs Simple Call Blocker

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

Head to head
About

Number Shield

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.

Highlights
  • 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
Read full description

Block annoying scammers who hide behind fake phone numbers. Do you get unwanted calls or text messages from phone numbers similar to your own? With Number Shield, block an entire group of numbers at once. Just enter a wildcard for each digit you want to block. For example, if your number is 714-555-1234, scammers might use a number like 714-555-6789. Block all similar numbers by entering 714-555-####. Wildcards and numbers can be combined in any order you choose. Block international numbers, too! To make sure you don't miss calls from your family and friends, phone numbers in your contacts are always allowed. Block numbers directly from your phone's missed calls screen. Just follow these steps: 1. Tap the “ i ” button next to the missed call. 2. Tap “Share Contact”. 3. Tap “Block Similar Numbers”. (If you don't see this action, tap “Edit Actions...“ to enable it.) 4. Now you'll see the Number Shield number entry screen. Tap “Done” to block calls from similar numbers. Please note: • Each number pattern can contain up to 7 wildcards, and up to 50,000,000 phone numbers can be blocked. • Blocked calls are sent directly to voice mail. • Blocked text messages are sent to the “Junk” filter in the Messages app. • iMessage messages are not blocked. • When “Do Not Disturb” is enabled on your phone, calls that should be blocked may appear in your phone's list of missed calls. More information about caller ID spoofing in the United States is available from the FCC: https://www.fcc.gov/spoofing

About

Simple Call Blocker

Block unwanted calls on your iPhone by individual numbers or entire ranges. Create an allow list for specific numbers or contacts, ensuring they never get blocked. This app prioritizes simplicity and privacy, without collecting your data.

Highlights
  • Block individual phone numbers
  • Block ranges of phone numbers
  • Create an allow list
  • Option to allow all contacts
  • No personal data collection
Read full description

Simple Call Blocker is a utility that lets you block unwanted calls to your iPhone. It allows you to block individual numbers, or ranges of numbers. You may also add individual numbers or ranges of numbers to the Allow List, so that they will not be blocked by this app, even if they are in the Block List. Optionally, you may also allow all of your phone's contacts. ## Does the app contain a list of known phone spammers to block? No. Simple Call Blocker does not provide or maintain a known spammers blacklist. There are several other iOS call blockers that do, which you can use for free, if that feature is important to you. You may use Simple Call Blocker in conjunction with one of those other apps to blacklist additional numbers. ## Why would I use this app? Three reasons: 1. Simple Call Blocker allows you to block a range of phone numbers, to help prevent “neighbor spam”, for free. Other apps may let you blacklist individual phone numbers, but require an in-app purchase or paid subscription to block ranges of numbers. 2. Simple Call Blocker does not collect your personal information. You do not need to provide it access to your contacts unless you wish to enable the “allow all contacts” option. In contrast, some call blockers require a subscription or even a login to their web service in order to work. 3. Simple Call Blocker is designed to be very simple and reliable. In contrast, with many call blockers, it is hard to determine how many numbers are in the blacklist, whether or not the “Call Directory app extension” is loaded, and so on. ## Privacy Policy Simple Call Blocker does not collect any of your information, period. No data within the app or accessed by the app is ever transmitted to the developer.

Screenshots

Number Shield4 screens
Simple Call Blocker4 screens

Verdict

The call

The clearest difference is price: Simple Call Blocker at Free against Number Shield's $2.99. Simple Call Blocker also leads on iOS requirement (12.0 vs 16.6). Number Shield's advantage is rating (4.5 vs 4.2) and update cadence (every 2 months vs every 6 months). On review sentiment, ratings volume, 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

Simple Call Blocker is free to download; Number Shield costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Number Shield holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 1.9K and 3K respectively. Written reviews complicate that: 50% of Number Shield's written reviews are positive against 52% of Simple Call Blocker's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Number Shield ships an update every 2 months, Simple Call Blocker every 6 months. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

Scorecard5 real differences · 6 level
Number Shield versus Simple Call Blocker: the parameters behind the verdict, then further details
ParameterNumber ShieldSimple Call Blocker
Price$2.99Free — better
Rating4.5 (1.9K ratings) — better4.2 (3K ratings)
Positive reviews50.1% of reviews52.3% of reviews — better
Number of ratings1.9K3K — better
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#23 — better—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.612.0 — better
Further details — not scored
Size9 MB9 MB
Age rating4+4+
DeveloperKinnaman Software LLCMichael Descy

Customer experience

Number Shield

All ratings1,855 ratings
Positive86.3%
Neutral3.8%
Negative9.9%
Written reviews345 reviews
Positive50.1%
Neutral7.0%
Negative42.9%

Simple Call Blocker

All ratings3,033 ratings
Positive78.9%
Neutral5.0%
Negative16.1%
Written reviews776 reviews
Positive52.3%
Neutral8.1%
Negative39.6%

User reviews

Number Shield

From 1.9K App Store ratings

What we love

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

Room to improve

  • 🐛 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

Simple Call Blocker

From 3K App Store ratings

What we love

  • 🚀 Simple and effective
  • 🔒 Respects user privacy
  • 👍 Blocks range of numbers
  • 👍 Stops spam calls

Room to improve

  • 🐛 Calls not always blocked
  • 🐛 Blocker loading failed
  • 🐛 Doesn't work on all devices
  • 🐛 Blocks limited to 2 million numbers

Bugs and requests

Number Shield

Reported bugs

4 issues
  • App freezes when adding new numbers
  • Blocked numbers still receive calls
  • Database errors cause app to malfunction
  • Compatibility issues with newer iOS versions

Requested features

5 requests
  • Add ability to block text messages
  • Increase number of numbers that can be blocked
  • Improve stability and reduce crashes
  • Add option to block entire country codes
  • Provide better customer support

Simple Call Blocker

Reported bugs

3 issues
  • Calls still getting through blocked numbers
  • Validation issues with number formats
  • Blocker not loading properly

Requested features

4 requests
  • Block entire area codes or countries
  • Ability to block from contacts list
  • Logging/reporting of blocked calls
  • Expand blocking capacity

In-app purchases

None

Number Shield

No in-app purchases

None

Simple Call Blocker

No in-app purchases

Questions

Is Number Shield free?
Number Shield costs $2.99, with no in-app purchases.
Is Simple Call Blocker free?
Simple Call Blocker is free to download, with no in-app purchases.
Which has better reviews, Number Shield or Simple Call Blocker?
Number Shield is rated higher. Number Shield averages 4.5 out of 5 from 1.9K ratings, while Simple Call Blocker averages 4.2 from 3K ratings.
Do Number Shield or Simple Call Blocker have ads?
Neither Number Shield nor Simple Call Blocker shows ads.
Which is updated more often, Number Shield or Simple Call Blocker?
Number Shield ships an update every 2 months, and Simple Call Blocker every 6 months. Most recently, Number Shield was updated on October 12, 2026 and Simple Call Blocker on October 14, 2026.

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