Comparison

Nomorobo vs Number Shield

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

Head to head
About

Nomorobo

This app blocks unwanted robocalls, telemarketers, spam texts, and scammers from reaching your phone. It identifies and filters out millions of malicious callers daily, while allowing important alerts to get through. Enjoy peace of mind with real-time protection and customizable blocking options.

Highlights
  • Real-time robocall blocking
  • Identifies new robocallers daily
  • Allows important alerts
  • Blocks neighbor spoofed calls
  • Protection from text spam
  • Listens to robocall messages
Read full description

Nomorobo blocks annoying robocalls, telemarketers, spam texts, and phone scammers from calling your phone. Bring peace and quiet back to your life. Try it for free. ## 3x App Store "App of the Day" ## Featured by Apple as "New Apps We Love" ## Winner of the FTC Robocall Challenge ## PC Magazine Editor's Choice FEATURES - Real-time protection from over 10,000,000 annoying robocallers, telemarketers, and phone scammers - Over 1,500+ new robocallers identified every day - Important robocalls, like school closings and weather alerts, are able to get through - Privacy friendly - Never accesses your call logs - Block or identify robocalls (your choice) - Protection from text spam and phishing attempts - Listen to thousands of robocall messages in our database - Block "neighbor spoofed" calls. These are numbers that are very similar to yours. ## Over 1.5 BILLION robocalls stopped since 2013 ## Trusted by over 2,500,000 people every day AS SEEN IN - The New York Times - The Wall Street Journal - CBS News - NBC Nightly News - Wired - eWeek SUBSCRIPTION INFORMATION - All plans come with a free trial - Payment will be charged to your iTunes Account at confirmation of purchase. - You can cancel your subscription here: https://support.apple.com/en-us/HT202039 - Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - The account will be charged for renewal within 24-hours prior to the end of the current period. - When purchasing a subscription, any unused portion of a free trial period will be forfeited. - Privacy policy & terms of use are here: https://www.nomorobo.com/pages/privacy TROUBLESHOOTING - Please don't swipe-up (aka quit) Nomorobo since it prevents us from refreshing in the background. - If you suddenly can't enable Nomorobo in Settings (it won't stay on), please delete the app, reboot your phone, and reinstall. This clears out an iOS caching issue and will get you back up and running. - Have other questions? Look here: http://support.nomorobo.com

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
Currently charting
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

Screenshots

Nomorobo4 screens
Number Shield4 screens

Verdict

The call

The clearest difference is price: Nomorobo at Free against Number Shield's $2.99. Nomorobo also leads on update cadence (every 3 weeks vs every 2 months) and ratings volume (22K vs 1.9K). Number Shield's advantage is in-app purchases (none vs 14) and review sentiment (50% vs 17%). On rating, ads, chart position 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

Nomorobo is free to download; Number Shield costs $2.99 up front. Nomorobo sells 14 in-app purchases, starting at $2.99 per month. Number Shield asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Nomorobo against 4.5 for Number Shield. That said, the two scores are not equally well evidenced: Nomorobo has 22K ratings behind it against 1.9K, so its average is the more settled of the two. Written reviews are what separate them: 17% of Nomorobo's written reviews are positive against 50% of Number Shield's.

UpkeepUpdate frequency

Nomorobo ships an update every 3 weeks, Number Shield every 2 months. Both last shipped on November 2, 2026.

Scorecard6 real differences · 5 level
Nomorobo versus Number Shield: the parameters behind the verdict, then further details
ParameterNomoroboNumber Shield
PriceFree — better$2.99
Rating4.5 (22K ratings)4.5 (1.9K ratings) — better
Positive reviews17.3% of reviews50.3% of reviews — better
Number of ratings22K — better1.9K
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#117#82 — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better16.6
Further details — not scored
Size57 MB9 MB
Age rating4+4+
DeveloperTelephone Science CorporationKinnaman Software LLC

Customer experience

Nomorobo

All ratings21,736 ratings
Positive87.6%
Neutral3.7%
Negative8.8%
Written reviews330 reviews
Positive17.3%
Neutral11.5%
Negative71.2%

Number Shield

All ratings1,855 ratings
Positive86.3%
Neutral3.8%
Negative9.9%
Written reviews346 reviews
Positive50.3%
Neutral6.9%
Negative42.8%

User reviews

Nomorobo

From 22K App Store ratings

What we love

  • 🚀 Effective at blocking spam calls
  • 👍 Helpful in reducing nuisance calls
  • 🔒 Protects against scammers and fraudsters
  • 💡 Useful feature to report and block numbers

Room to improve

  • 🐛 App not consistently updating or refreshing
  • 🐛 Numbers still getting through despite being reported
  • 🐛 Inaccurate spam detection and false positives
  • 🔋 Drains battery when app is kept open
  • 💰 Subscription fees not justifying the service

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

Bugs and requests

Nomorobo

Reported bugs

3 issues
  • App freezing or crashing after updates
  • Inability to update blocklist or report numbers
  • Inconsistent performance across iOS versions

Requested features

4 requests
  • More granular control over call handling options
  • Automated updates without needing to manually refresh
  • Better integration with phone's native call blocking features
  • Ability to block international and spoofed numbers

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

In-app purchases

14 purchases

Nomorobo

Subscriptions13
  • Nomorobo Monthly Subscription14 Days trial$2.991 Month
  • Monthly Subscription14 Days trial$2.991 Month
  • Monthly Subscription14 Days trial$3.991 Month
Show 10 more
  • Privacy Protection$4.991 Month
  • Monthly Subscription14 Days trial$4.991 Month
  • Monthly Subscription14 Days trial$5.991 Month
  • Privacy Protection$14.993 Months
  • Annual Subscription14 Days trial$14.991 Year
  • Nomorobo Annual Subscription14 Days trial$19.991 Year
  • Annual Subscription7 Days trial$19.991 Year
  • Annual Subscription14 Days trial$29.991 Year
  • Nomorobo Annual14 Days trial$39.991 Year
  • Privacy Protection$49.991 Year
One-time1
  • Privacy Protection$14.99
None

Number Shield

No in-app purchases

Questions

Is Nomorobo free?
Nomorobo is free to download, with in-app purchases available.
Is Number Shield free?
Number Shield costs $2.99, with no in-app purchases.
Which has better reviews, Nomorobo or Number Shield?
Number Shield is rated higher. Nomorobo averages 4.5 out of 5 from 22K ratings, while Number Shield averages 4.5 from 1.9K ratings.
Do Nomorobo or Number Shield have ads?
Neither Nomorobo nor Number Shield shows ads.
Which is updated more often, Nomorobo or Number Shield?
Nomorobo ships an update every 3 weeks, and Number Shield every 2 months. Most recently, Nomorobo was updated on November 2, 2026 and Number Shield on November 2, 2026.
Which is more popular, Nomorobo or Number Shield?
Nomorobo currently peaks at #117 in the App Store charts, and Number Shield at #82. Chart position reflects recent download velocity rather than total install base.

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