The best spam call blocker is the one that covers the phone and the messages you need protecting. Some apps rely on community reports, some lead with caller ID, some also check texts and links or cover a landline, and some platforms are built for businesses and mobile networks. Match the coverage to your phone first, then pick the app.
Unknown number again. If your phone rings with spam more often than it rings with friends, a blocker app starts to look like a must, but the apps on offer don't all do the same job.
This list covers ten spam call blockers and caller ID services, using only what each maker's own website says, read on 2 Nov 2026 (as of Nov 2026). It's alphabetical and in no particular order. You won't find catch rates, ratings or user counts here: they're the makers' own claims, so they stay on the makers' pages.
Spam call blockers compared
| Tool | Type | Good for |
|---|---|---|
| Call Control | Call blocker app, also for home phones | A mobile app and a home phone version |
| CallApp | Caller ID and call blocking app | Identifying calls from unknown numbers |
| Eyecon | Caller ID app with spam blocking | Names and photos on unknown calls |
| Hiya | Caller ID and spam platform for businesses and networks | Branded calling for businesses and carriers |
| Nomorobo | Spam call and text blocking app | Calls, texts and landlines |
| Robokiller | Spam call and text blocker app | Screening unknown calls and texts |
| Should I Answer | Community-built protection against unwanted calls | A community that reports unwanted calls |
| Truecaller | Caller ID and spam blocking app | Identifying unknown callers |
| Whoscall | Caller ID and scam protection app | Checking calls, links and screenshots |
| YouMail | Call protection and privacy app | Blocking robocalls before they ring |
Ten spam call blockers and caller ID apps
Call Control
Best for: Blocking calls on a mobile app or a home phone, with a CommunityIQ feature built from community reports and Do Not Call complaints.
CallApp
Best for: Letting caller ID identify calls from spammers, telemarketers and unknown numbers automatically, even when a number isn't saved in your contacts.
Eyecon
Best for: Seeing names and photos for unknown callers, with a Super Spam Blocker in the same app.
Hiya
Best for: Businesses and mobile networks rather than home users: its page covers branded caller ID for business calls and spam protection for mobile subscribers.
Nomorobo
Best for: Covering spam calls and texts in one app, plus a landline, with a scam detector and a spam phone number lookup on its menu.
Robokiller
Best for: Screening and stopping unknown calls and texts, which the maker sums up as living spam-call-free.
Should I Answer
Best for: Joining a community that reports unwanted calls.
Truecaller
Best for: Identifying unknown callers and blocking spam calls, with a Scam Checker on its menu.
Whoscall
Best for: Checking calls, links and screenshots for scams, with caller ID in real time.
YouMail
Best for: Stopping robocalls and scammers before the phone rings, with visual voicemail and a safe second number on its menu.
Community reports, caller ID or both
Here's what's easy to miss: these apps tell spam from a real call in different ways, by their own accounts. One app comes pre-loaded with a feature it calls CommunityIQ, built from community reports and Do Not Call complaints. Another site asks you to join its community and report unwanted calls. Others lead with caller ID, showing a name or photo for numbers you haven't saved.
- Community-reporting apps: blocking built from what other users report.
- Caller ID apps with blocking: a name or photo first, with spam blocking alongside.
- Apps that go further: texts, links, screenshots or a landline as well as mobile calls.
- Business and carrier platforms: branded caller ID and network-level protection.
Texts, links and the landline in the hall
Calls aren't the only way in. Whoscall says 'we check calls, links, and screenshots', and a few apps here list spam texts beside spam calls. If there's still a landline at home, two makers cover it: Nomorobo says 'landline protection is back', and another maker invites you to 'get Call Control for your home phone'.
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So before you install anything, count up where the spam reaches you. A blocker that only covers mobile calls won't help with a text that carries a dodgy link, or with the phone in the hall.
When the blocker is built for businesses
One name on this list isn't a home app at heart. Hiya's page is built around 'branded call' for businesses, which displays a branded caller ID on their outgoing calls, and it talks about protecting mobile subscribers for networks. If you run a business whose calls go unanswered, that's the side to read; if you just want peace at home, look at the consumer apps instead.
Another maker here lists enterprise and developer APIs on its menu beside its home and mobile apps, so the same name can turn up on both sides.
Questions before you install a call blocker
- Is it my mobile, my landline or both that gets the spam?
- Do I want calls blocked, screened or just labelled with a name?
- Do I need spam texts and links checked too?
- Am I happy for an app to rely on community reports?
- Does the maker say the app works on my phone?
- Am I protecting a home phone, or a business's outgoing calls?
Do you make a spam call blocker? Tool makers can ask to be considered for a featured place on this list.
My advice on picking a spam call blocker
Start with what's getting through. If it's your mobile, choose between the community-reporting apps and the caller ID apps by how much you want to see before you answer. If it's texts and links as well, look at the apps that say they check those. If it's the landline, there are home phone options here. And read any blocking claim as the maker's own.
For the bigger picture, see my guide to how online fraud works and how to protect yourself, and my rundown of the common signs of a loan scam. To lock down your accounts too, here's my guide to the best authenticator apps.
Want your tool on this list? Featured spots and reviews here are paid partnerships. Here's how to partner with me.
Frequently asked questions
Can a spam call blocker work on a landline?
Some can. Two makers on this list offer landline or home phone protection alongside their mobile apps. Check the maker's own page for what your home phone needs.
Do these apps block spam texts too?
A few say so. Pages here list a spam text blocker, spam calls and texts in one app, and checks on links and screenshots as well as calls.
What's the difference between caller ID and call blocking?
By these makers' own descriptions, caller ID tells you who's calling, even when the number isn't saved in your contacts, while blocking stops or screens the call. Several apps here do both.
How do community-based blockers work?
By one maker's account, its CommunityIQ feature is generated from community reports and Do Not Call complaints. Another site asks you to join its community so you're protected and can protect others.
Is there a spam call blocker for businesses?
One platform here is aimed at businesses and mobile networks: its page covers branded caller ID for business calls and spam protection for mobile subscribers. Another maker lists enterprise and developer APIs on its menu.
Can a call blocker check suspicious links?
One app on this list says it checks calls, links and screenshots, and another lists a scam detector and a spam phone number lookup on its menu. Check what each maker says its app covers.
