Nomorobo vs Number Shield
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Real-time robocall blocking
- Identifies new robocallers daily
- Allows important alerts
- Blocks neighbor spoofed calls
- Protection from text spam
- Listens to robocall messages
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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
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.
- 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
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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
Verdict
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
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.
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.
Nomorobo ships an update every 3 weeks, Number Shield every 2 months. Both last shipped on November 2, 2026.
| Parameter | Nomorobo | Number Shield |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.5 (22K ratings) | 4.5 (1.9K ratings) — better |
| Positive reviews | 17.3% of reviews | 50.3% of reviews — better |
| Number of ratings | 22K — better | 1.9K |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #117 | #82 — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.6 |
| Further details — not scored | ||
| Size | 57 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Telephone Science Corporation | Kinnaman Software LLC |
Customer experience
Nomorobo
Number Shield
User reviews
Nomorobo
From 22K App Store ratingsWhat 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 ratingsWhat 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
Nomorobo
- Nomorobo Monthly Subscription14 Days trial$2.991 Month
- Monthly Subscription14 Days trial$2.991 Month
- Monthly Subscription14 Days trial$3.991 Month
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- 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
- Privacy Protection$14.99
Number Shield
No in-app purchases








