Comparison

Call Blocker vs Should I Answer

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

Head to head
About

Call Blocker

Block unwanted calls, identify suspicious numbers, and report spam. Access a large community database to avoid phone scams and extra charges. Protect yourself from telemarketers and unknown callers.

Highlights
  • Block any phone number
  • Identify commercial calls
  • Report suspicious numbers
  • Avoid common scams
  • Access community database
  • Automatic dangerous number blocking
Features
Read full description

Block, identify and report suspicious phone numbers. Unknownphone.com brings you the most complete app to avoid phone scams, unwanted calls and extra charges in your bill. With more than 10,000,000 telephone numbers registered and identified in our website and a community with millions of users in the United States and around the world. BLOCK PHONE NUMBERS - Do you want to know who is calling you? Are you annoyed by unwanted calls? With our app you will be able to block any phone number you want. (Activate in your iPhone the call block functionality in Settings -> Phone -> Call Blocking & Identification -> Call Blocker) REPORT SUSPICIOUS PHONE NUMBERS Search any phone number and check if it has been previously reported. Share your experience and warn our community. IDENTIFY COMMERCIAL CALLS Are you receiving calls and have no idea who is calling you? Do they refuse to identify themselves? Check the phone number with our application and find out who calls you. Verify the phone owner and block their calls. AVOID THE MOST COMMON SCAMS - Get the latest and most updated information on telephone scams in the United States. Block suspicious phone numbers before they call you. OUR COMMUNITY Unknownphone.com is the largest community on phone search and the biggest phone spam directory in the United States. With more than 10,000,000 identified phone numbers in more than 30 countries. Call Blocker is Unknownphone.com’s official phone block app and you will be able to access all of our services from your iPhone. Optional subscription to our service - Unlimited credits. Get information for all numbers you want. - Automatic detection and block of up to 200,000 dangerous phone numbers in your country. - Access without limitations all our records for any phone number. - No ads. - Auto-renewing subscription ($7.99 monthly / $14.99 3 months - price varies by country) Call Blocker respects your right to privacy. Your contacts will never be public. Privacy policy: unknownphone.com/privacy-policy Terms of use: unknownphone.com/terms-of-service Payment for auto-renewing subscription to Call Blocker will be charged to your iTunes account upon confirmation of purchase. Subscription can be managed and auto-renewal can be turned off by going to the Account Settings on your device. To avoid renewal, you must cancel at least 24 hours before your subscription ends. Your account will be charged for renewal within 24-hours prior to the end of the current period.

About

Should I Answer

This app identifies and blocks unwanted incoming calls, protecting users from spam and telemarketing. It provides real-time notifications about dangerous calls and offers a user-friendly interface for managing your call experience. Daily database updates ensure comprehensive protection against evolving threats.

Highlights
  • Identifies dangerous or unsolicited calls
  • Blocks unwanted incoming calls
  • Saves user time by filtering calls
  • Daily database updates
  • User-rated number database
  • Privacy protection for personal numbers
Features
Read full description

Get rid of all spam calls. For good. It has been more than 3 years since we released the Should I Answer app, which has been protecting you against all kind of spam calls. We have done a lot of work during this period: the app warns every day against 4 000 000 of spam calls, it blocks other 200 000 and saves average time of 63 000 seconds daily! But we didn’t take a break. So, finally, we’re really lucky to introduce you the new Should I Answer app for iOS. What are the app's functions? -> It will notify you of dangerous or unsolicited incoming calls... -> … or it will block them straight away… -> … and save your precious time. For who is this app meant to be? For everybody, we hope :-) The installation of the Should I Answer application is not difficult. Just download it and then even your grandma can use it. The graphical interface is user-friendly and enables you to easily gain all the necessary information about incoming phone calls. What database do we use? Most of the numbers in the database were rated by our users from their own real experience (based on real calls), but we included ratings from Do Not Call Registry and Federal Communication Commision as well. The number of new reviews is about 30.000 a day! The user’s reviews are first gathered on our server, and after the administrator checks and approves them, they are sent to the local database of your Should I Answer application with the daily database update. You don’t have to be worried about your privacy with us - your private numbers stay always hidden in your phone, we never use them for public presentation or processing. We care only about new, unknown calls (and if we find out that someone has written a review for personal number, we work to delete it ASAP). Why is not this iOS app for free? We’ve been thinking about how to do this for a really long time. We want to offer you a full service including regular updates (so you can really count on the app). However, since there are no adverts in the app itself, we were thinking about how to secure financing our programmers’ time (because the growing database of numbers needs daily maintaining). That’s the reason, why we decided to add subscription to the iOS app. In our opinion, it’s the best way how to ensure your app will be well maintained and always saving your time as it should be. Hope you understand and stay with us :-) Where can you learn more? Interested in more info? Just have a look on our webpage (you can find a lot of uselful information about telemarketing and phone scam there). Or connect with us on Facebook. About subscription Caller ID information, blocking of unwanted calls and daily database updates are available after purchasing 1 month auto-renewal subscription. There is 1 month trial period to test if the app fit your needs. Subscription details: – Title: Database Subscription – Length of subscription : 1 month – Price of subscription: 1.99 USD. Price can differ according automatic recomputation for your country – Payment will be charged to iTunes Account at confirmation of purchase – Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period – Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal – Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase – Links to Privacy Policy and Terms of Use : https://www.shouldianswer.net/iosmanual/latest – Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable

Screenshots

Call Blocker4 screens
Should I Answer3 screens

Verdict

The call

The clearest difference is review sentiment: Call Blocker at 78% against Should I Answer's 28%. Call Blocker also leads on rating (4.5 vs 2.6) and monetization model (free with in-app purchases vs subscription). Should I Answer's advantage is ads (none vs shown) and iOS requirement (10 vs 15.6). On price, ratings volume, update cadence 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

Both are free to download. Call Blocker sells 10 in-app purchases, starting at $4.99 per month and Should I Answer sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Call Blocker holds the better App Store score, 4.5 against 2.6. Both are backed by a comparable volume of ratings — 1.2K and 471 respectively. Written reviews point the same way: 78% of Call Blocker's written reviews are positive against 28% of Should I Answer's.

UpkeepUpdate frequency

Call Blocker ships an update monthly, Should I Answer every 2 months. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
Call Blocker versus Should I Answer: the parameters behind the verdict, then further details
ParameterCall BlockerShould I Answer
PriceFreeFree
Rating4.5 (1.2K ratings) — better2.6 (471 ratings)
Positive reviews78.2% of reviews — better27.5% of reviews
Number of ratings1.2K — better471
Update frequencyMonthly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.610 — better
Further details — not scored
Size57 MB111 MB
Age rating9+4+
DeveloperUnknownPhone.comMister Group s.r.o.

Customer experience

Call Blocker

All ratings1,225 ratings
Positive88.2%
Neutral4.9%
Negative6.9%
Written reviews987 reviews
Positive78.2%
Neutral4.7%
Negative17.1%

Should I Answer

All ratings471 ratings
Positive35.7%
Neutral9.8%
Negative54.6%
Written reviews218 reviews
Positive27.5%
Neutral8.7%
Negative63.8%

User reviews

Call Blocker

From 1.2K App Store ratings

What we love

  • 🚀 Effective call blocker
  • 👍 Easy to use
  • 🔒 Blocks spam and scam calls
  • 💡 Useful caller ID and lookup features

Room to improve

  • 🐛 Inconsistent performance, some calls still get through
  • 🔍 Incomplete database of known scammers
  • 💰 Paid version required for full functionality
  • 📱 Doesn't integrate well with phone's built-in blocking

Should I Answer

From 471 App Store ratings

What we love

  • 🚀 Effective at blocking calls
  • 👍 Great app for controlling unwanted calls
  • 🚀 Blocks most scam/telemarketing calls

Room to improve

  • 🐛 Doesn't block all spam calls
  • 🔒 Concerns about privacy/security
  • 💰 Paid subscription required
  • 🐛 Inconsistent performance on iOS

Bugs and requests

Call Blocker

Reported bugs

2 issues
  • Database update errors
  • Inability to block certain numbers

Requested features

3 requests
  • Automatic database updates
  • Block calls from unknown/private numbers
  • Integration with phone's native call blocking

Should I Answer

Reported bugs

3 issues
  • Database not updating properly
  • Inability to paste numbers into search
  • Ads even with paid subscription

Requested features

3 requests
  • Ability to easily report/block numbers
  • Improved database updates
  • Free version for basic functionality

In-app purchases

10 purchases

Call Blocker

Subscriptions10
  • Call Blocker 1-Month Shield$4.991 Month
  • One month subscription$6.991 Month
  • Call Blocker: 3M Shield$9.993 Months
Show 7 more
  • Free 1 week trial + 3 months7 Days trial$9.993 Months
  • 50% Discount - Three months3 Months trial$9.993 Months
  • Three months subscription$14.993 Months
  • Free 1 week trial + 3 months7 Days trial$14.993 Months
  • Call Blocker: 1 Year$22.991 Year
  • Call Blocker: 1 Year - 1 Free Week7 Days trial$22.991 Year
  • Call Blocker: 1 Year (50% Discount)1 Year trial$22.991 Year
2 purchases

Should I Answer

Subscriptions2
  • Database Subscription1 Month trial$1.991 Month
  • Database Subscription1 Month trial$9.991 Year

Questions

Is Call Blocker free?
Call Blocker is free to download, with in-app purchases available.
Is Should I Answer free?
Should I Answer is free to download, with in-app purchases available.
Which has better reviews, Call Blocker or Should I Answer?
Call Blocker is rated higher. Call Blocker averages 4.5 out of 5 from 1.2K ratings, while Should I Answer averages 2.6 from 471 ratings.
Do Call Blocker or Should I Answer have ads?
Call Blocker shows ads; Should I Answer does not.
Which is updated more often, Call Blocker or Should I Answer?
Call Blocker ships an update monthly, and Should I Answer every 2 months. Most recently, Call Blocker was updated on October 12, 2026 and Should I Answer on October 10, 2026.

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