Best app to block spam calls and identify callers: what each one does
Last updated October 24, 2026
For blocking spam and naming callers in one app, start with Truecaller or Hiya. Robokiller focuses on blocking calls and texts, and Phone by Google and the iPhone's own settings are free built-ins. Add Ms. Number when you want to check one specific number and read community reports.
Get Ms. Number on the App StoreBuilt-in tools come first
Android's Phone by Google shows caller ID and spam warnings, and "Filter spam calls" sends flagged calls away without a ring (Google Phone help, fetched October 24, 2026).
Apple says iPhone can block specific numbers, screen calls, and send unknown and spam callers directly to voicemail (Apple Support, fetched October 24, 2026).
Dedicated apps
Robokiller's home page says it blocks spam calls and texts and uses predictive analytics and audio fingerprinting. Its site lists 463K ratings, which is its own claim (fetched October 24, 2026).
Hiya's free tier shows spam reputation, and name data needs Premium. Truecaller lists auto-blocking all spam and an AI Assistant as Premium features. Check each app's page for today's price, since plans change.
Best for / not for
Best for Ms. Number: a deliberate check of one number or person before you answer or meet, plus a one-tap block. Not for: filtering every call automatically in the background. Use Robokiller, Hiya or Truecaller for that.
A simple setup
Turn on your phone's built-in spam filter, add one blocker app if you still get calls, and keep a lookup app like Ms. Number for the numbers that slip through or the people you are about to meet.
Questions
What is the best app to block spam calls?
It depends on your phone. Android's Phone by Google and iPhone's built-in settings are free. Robokiller, Hiya and Truecaller add more filtering.
Can one app block spam and identify callers?
Yes. Truecaller and Hiya both do both. Name details often sit behind a paid plan.
Do spam blockers catch every call?
No. Spoofers rotate numbers, so some calls still ring through.
Is a Truecaller alternative worth it?
Only if you need something different. See our Truecaller alternative page for what each does.
Can I use two apps together?
Yes. Many people run one blocker and one lookup app.
Where do I report spam calls?
Report them to the FTC at reportfraud.ftc.gov.
Check a number in Ms. Number
Look up a number, read what the community reported, and block it in one tap. Ms. Number needs a paid plan to use, and the App Store shows the price and any free trial before you subscribe.
Get Ms. Number on the App StoreSources
Who makes this
Ms. Number is made by Block Browser INC. Community reports are users' opinions and may be wrong. Ms. Number is not a consumer reporting agency, and its information may not be used for credit, employment, housing, tenancy or insurance decisions. To remove a number, use the opt-out page. Questions: support.