Call Blocker
Get app

Stop Unwanted Calls for Good

Automatically block spam, robocalls, private numbers, and international calls. No subscriptions, no data collection — just peace and quiet.

Free to download · No subscription
4.7

507 ratings on Google Play

19,000+

downloads

Everything You Need to Block Calls

Powerful, flexible filters to stop any unwanted call — before your phone even rings.

  • Block Unknown Numbers

    Free

    Automatically block all calls from numbers not in your contacts or allowed list — completely free.

  • Block Private & Masked Numbers

    Pro

    Silence calls that hide their phone number entirely — no more anonymous harassment.

  • Block International Numbers

    Pro

    Block calls from specific countries or international area codes with a single tap.

  • Block Suspicious Numbers

    Pro

    Detect and block calls that fail STIR/SHAKEN verification — a strong sign of spoofing.

  • Custom Blocklist

    Pro

    Add exact numbers, prefixes (e.g. +1800), suffixes, or number ranges to your personal blocklist.

  • Allowed Numbers

    Free

    Add trusted numbers to an allowed list — they always ring through, even when unknown number blocking is on.

  • Scheduled Blocking

    Pro

    Set active hours for each filter — block calls only at night, during work hours, or any custom window. Pro feature.

  • Free to Download

    Start for free. Upgrade once for lifetime Pro access — no recurring fees, ever.

    Download now

Set Up in Under a Minute

  1. 1

    Install from Google Play

    Download Call Blocker for free from the Google Play Store.

  2. 2

    Set as Default Caller ID App

    Set Call Blocker as your default Caller ID & spam app in your phone settings. You keep your favorite phone app.

  3. 3

    Configure & Relax

    Choose your blocking filters and enjoy uninterrupted peace of mind.

Your Privacy Is Protected

Call Blocker works entirely on your device. No servers, no tracking, no accounts.

  • Everything runs locally on your device
  • No contacts accessed, no personal data collected
  • No user accounts, minimal permissions required

Loved by Users

What Android users say on Google Play

4.7

507 ratings on Google Play

  • this is the app to stop all unwanted calls, worth every penny!!! Nice and easy to use
    Olaf S.Google Play
  • This app is reliable and easy to use. It actually blocks the calls that you so desired to omit. Haven't had a spam caller in a long time.
    Andy R.Google Play
  • Very pleased..I was highly considering turning off my phone ...was averaging over 35 Spam calls daily...today it's averaging over 29, but, thanks to this app unless I check I do not know the Spam calls are still happening...I highly recommend this program!!
    Sharon S.Google Play
  • Very good app blocks all scam calls
    Kimberly A.Google Play
  • This is really good and functional !!! Congratulations.
    Outis E.Google Play
  • Best app for blocking unwanted calls.
    Swadhin M.Google Play

Frequently Asked Questions

Call Blocker is a free spam blocker for Android that automatically stops unwanted calls — robocalls, telemarketers, unknown numbers — before your phone even rings. No subscription, no account, works entirely offline.

Enable the 'Unknown numbers' filter in the app. It will block all calls from numbers not in your contacts or allowed list — completely free, running 24/7 in the background.

Call Blocker intercepts spam calls before your phone rings. Enable the filters for unknown numbers, private numbers, or suspicious calls (STIR/SHAKEN failures). You can also set a custom schedule so filters only run during specific hours.

Yes. Set Call Blocker as your default Caller ID & spam app in Android settings. It will screen every incoming call in real time — all on-device, no cloud lookup, no data shared.

Enable the 'Private numbers' filter in the app. It silences all calls that hide their number. You can run it 24/7 or limit it to specific time slots using the scheduling feature (Pro).

Yes — Call Blocker. Unlike Truecaller, it works fully offline with no account, no contact upload, and no ads. All filtering runs locally on your device, so your data never leaves your phone.

Call Blocker logs every blocked call in your history. You can review which numbers tried to reach you, see the total blocked count, and add specific numbers to your blocklist or allowed list directly from the log.

Open the 'Blocked numbers' section and add any exact number, prefix (e.g. +1800), suffix, or a range of numbers. All matching calls will be automatically rejected. You can import or export your list as a JSON file.

Yes. Add trusted numbers or prefixes to your allowed list. When the unknown numbers filter is on, only your contacts and allowed-list entries will get through — everyone else is blocked.

The free tier includes blocking unknown numbers (all calls except contacts), the allowed list, call history, and basic statistics. Pro adds the advanced filters (private, international, suspicious), the custom blocklist, and scheduled blocking by time slot.

No. Call Blocker runs entirely on your device. No contacts, no call history, no personal data is sent to any server. Only anonymous crash reports are collected to fix bugs.

No More Spam. Welcome to Peace and Quiet.

Over 19,000 downloads. Free to download, no subscription.

  • Free to download
  • No subscription
  • 19,000+ downloads