Adblock for unwanted calls

The first app that stops annoying phone calls in iOS, with the world’s biggest directory of telemarketers – 3,000,000+ from 100+ countries!

Sign up to find out about app updates or new platforms first!

You’ll also be able to refer friends and get a year of free access.
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You probably love your smartphone – except for maybe the phone part and, in particular, the telemarketers often on the other end of the line. Telemarketers make 148 million annoying, time-wasting calls per day1 and do-not-call lists (where available) do not work2, 3 (and weren’t even meant to for many types of telemarketers4). Callblock is the first iOS app that helps prevent these calls.5

The app is something of a sequel to our ad blocker, Adblock Fast, which has 750,000 users and is rated 4.5 and 4 stars in the App Store and Google Play since launching alongside iOS 9 then the Samsung Galaxy S6. We’ve built on our experience filtering online advertisers to compile, classify, and apply what we think is the world’s biggest directory of telemarketers, featuring millions of entries from almost every country in the world.

With Callblock, you can:

  •  
  • Filtering
  • Install
  • Page load
  • Peak CPU
  • Peak memory
  • AdBlock
  • 49K rules
  • 843 KB
  • 2.84s
  • 19.4%
  • 162.5 MB
  • Callblock
  • 7 rules
  • 97 KB
  • 2.10s
  • 6.6%
  • 58.5 MB
  • ABP
  • 49K rules
  • 543 KB
  • 3.23s
  • 20.3%
  • 158.0 MB

1. Block calls from over 3,000,000 telemarketers by type.

Classified telemarketers


2. Help maintain the biggest directory of telemarketers.

Reporting a telemarketer


3. Just tap to caller-ID only rather than block telemarketers.

Caller ID


Notes:

  1. Facts and figures on telemarketing, The Houston Chronicle, accessed September 6, 2016.
  2. Cutting off robocalls, The Federal Communications Commission, accessed September 6, 2016.
  3. Do-not-call list “useless”, critics say, The Canadian Press, accessed September 6, 2016.
  4. Who may or may not call?, The Federal Trade Commission, accessed September 6, 2016.
  5. Callblock’s new iOS app will block calls, TechCrunch, accessed September 7, 2016.

Owner’s manual

Callblock blocks unwanted telephone calls not iMessage, SMS, or MMS messages. To allow the app to block calls:

  1. press the Home button on your iPhone,
  2. tap the Settings app,
  3. tap Phone > (under CALLS) Call Blocking & Identification, then
  4. toggle the Callblock switch on.

To unblock calls, navigate to the Callblock app.

Enabling Callblock or making changes in the app may take up to a minute to take effect.

If you have any questions or comments, you can follow and message us on Facebook or on Twitter or can send us mail at help@callblockapp.com.

Questions, possibly to be asked frequently

Who created Callblock?

Callblock is designed, developed, and maintained by Rocketship, an award-winning app studio and the creator of the popular ad blocker Adblock Fast.

What are Unclassified callers in Callblock?

Unclassified callers are those we’ve identified as telemarketers but not yet what type.

Which countries does Callblock work in?

Callblock can screen telephone calls from almost every country in the world – 174 of the 193 recognized by the United Nations and so many that naming which countries are not supported is a whole lot easier. They are:

Antigua and Barbuda
The Bahamas
Barbados
Dominica
The Dominican Republic
Grenada
Jamaica
Liechtenstein
The Marshall Islands
Nauru
North Korea
Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
San Marino
Tajikistan
Timor-Leste
Trinidad and Tobago
Tuvalu

The countries Callblock supports are:

Afghanistan
Albania
Algeria
Andorra
Angola
Argentina
Armenia
Australia
Austria
Azerbaijan
Bahrain
Bangladesh
Belarus
Belgium
Belize
Benin
Bhutan
Bolivia
Bosnia and Herzegovina
Botswana
Brazil
Brunei
Bulgaria
Burkina Faso
Burundi
Cambodia
Cameroon
Canada
Cape Verde
The Central African Republic
Chad
Chile
China
Colombia
Comoros
Congo-Brazzaville
Costa Rica
Croatia
Cuba
Cyprus
The Czech Republic
Congo-Kinshasa
Denmark
Djibouti
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Estonia
Ethiopia
Fiji
Finland
France
Gabon
Gambia
Georgia
Germany
Ghana
Greece
Guatemala
Guinea
Guinea-Bissau
Guyana
Haiti
Honduras
Hungary
Iceland
India
Indonesia
Iran
Iraq
Ireland
Israel
Italy
The Ivory Coast
Japan
Jordan
Kazakhstan
Kenya
Kiribati
Kuwait
Kyrgyzstan
Laos
Latvia
Lebanon
Lesotho
Liberia
Libya
Lithuania
Luxembourg
Macedonia
Madagascar
Malawi
Malaysia
The Maldives
Mali
Malta
Mauritania
Mauritius
Mexico
Micronesia
Moldova
Monaco
Mongolia
Montenegro
Morocco
Mozambique
Myanmar
Namibia
Nepal
The Netherlands
New Zealand
Nicaragua
Niger
Nigeria
Norway
Oman
Pakistan
Palau
Panama
Papua New Guinea
Paraguay
Peru
The Philippines
Poland
Portugal
Qatar
Romania
Russia
Rwanda
Samoa
Sao Tome and Principe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore
Slovakia
Slovenia
The Solomon Islands
Somalia
South Africa
South Korea
South Sudan
Spain
Sri Lanka
Sudan
Suriname
Swaziland
Sweden
Switzerland
Syria
Tanzania
Thailand
Togo
Tonga
Tunisia
Turkey
Turkmenistan
Uganda
Ukraine
The United Arab Emirates
The United Kingdom
The United States
Uruguay
Uzbekistan
Vanuatu
Venezuela
Vietnam
Yemen
Zambia
Zimbabwe

Where does Callblock list blocked calls?

Callblock can’t monitor your incoming calls (to list or do otherwise with them) due to iOS’s privacy model. Blocked calls are sent straight to voicemail. You may want to set the app to caller-ID only till you’re comfortable the right callers are being screened out.

When will Callblock be available on [insert platform here]?

Callblock is available for iOS 10 (on 64-bit phones, iPhone 5s and up). Subscribe to be notified when versions for other platforms become available.

Why is a subscription required if Callblock was purchased?

You don’t need a subscription if you bought the first version of Callblock, but later versions can’t determine whether you bought the first version if you’ve since deleted the app. Forward your App Store receipt to help@callblockapp.com, though, and we can credit you with a subscription.

How is Callblock’s directory of telemarketers compiled?

Callblock’s directory comes from public and private records, the results of our ongoing research and testing, and user reports. An average of over 10,000 new entries are added to the directory and existing entries, reclassified daily. The app autoupdates to include these changes.

How much does Callblock cost?

You can try Callblock free for a month. Afterwards, the app is $1.99 monthly or $19.99 yearly.

Can Callblock block Unknown callers?

Callblock can’t block calls with no caller ID. This is an iOS limitation, but most telemarketers don’t block their caller IDs.

Does Callblock require Contacts access?

Unlike similar apps, Callblock doesn’t need to access your Contacts to work.

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