Mr. Number: Spam Call Blocker

Review by eFreeware

Mr. Number is a free Android app from Hiya that deals with unwanted calls: identifying who is ringing, blocking the ones you don't want, and flagging suspected fraud and spam. It has been on Google Play for a long stretch, and the install base is substantial, at more than 10 million. The rating sits at 3.9 from over 200,000 ratings, which is respectable for a utility that people tend to open mostly when something goes wrong.

The reason to consider it is straightforward. Instead of silencing every unknown number and hoping for the best, the app tries to put a name to the caller and gives you several ways to cut off the ones you never want to hear from again. It is one of the better-known names in this category, and the developer has kept it updated, most recently in May 2025 with bug fixes and performance improvements.

I'd expect this to appeal most to people whose phone number has drifted onto marketing lists, or who get repeated calls from numbers that look local but clearly aren't. If your incoming calls are mostly people you know, the value is thinner, though the name lookup still has something to offer.

Blocking that goes beyond a single number

The blocking options are the heart of the app, and they go wider than the usual single-number list. Blocking works at three levels: a single number, a whole area code, or an entire country. That last option is the one I find most interesting, because a run of calls from a country you have no connection to is a pattern that a simple block list handles badly. Blocking the region outright is a tidier response.

Private and unknown numbers get their own treatment: rather than ringing through, they can be intercepted and sent to voicemail. That keeps the door open for the occasional legitimate caller who hides their number while removing the interruption. Telemarketers and debt collectors are named as targets, and the developer's pitch is that you stop them before they take up your time.

The app also intervenes on calls that aren't obviously junk. It's billed as automatically blocking potential fraud and suspected spam, which means the app makes some decisions on your behalf rather than waiting for you to add each number manually. That is convenient, and it is also the part I would keep an eye on, since automated judgment calls occasionally catch a caller you wanted to hear from.

Names, history and what other users report

Identification runs in two directions. When you dial out, the app can put a name to the number you are calling. More useful day to day, it performs an automatic caller lookup on the recent calls already sitting in your phone's history, so you can see who has been trying to reach you and decide who belongs on the block list. That turns a vague list of digits into something you can act on.

There is a community layer as well. Users can report spam calls, and those reports feed into the warnings other people see. When a spam call does arrive, you can browse comments left by other users about that number, which is often more informative than a bare label. A number that several people have flagged tells you something a caller ID name alone cannot.

The app has been listed among PCMag's 100 Best Android Apps and won an Appy Award for Best Communications App. What matters more is whether the combination of history lookup, name display and shared reports matches how you actually deal with nuisance calls.

The cost side and what the app asks of you

The download is free, and the app carries no ads. It does offer in-app purchases, so some form of paid option exists alongside the free experience.

The spam reports and the comments attached to numbers come from people using the app, so the identification side works best when you contribute as well as consume.

There is also a judgment call involved in the automatic blocking. Letting software decide which calls are suspected fraud means accepting that some calls will be handled without your input. For most people that trade is worth it; if you regularly take calls from unfamiliar numbers for work, you may want to review what has been blocked rather than assume the list is perfect.

Getting the most from it without overblocking

My advice is to start narrow and widen only when a pattern shows up. Block the individual numbers that keep calling, then move to an area code if the same prefix keeps returning, and reserve country-level blocking for regions you have no reason to hear from. That order keeps you from cutting off a legitimate caller while you are still learning what your nuisance traffic looks like.

Sending private and unknown numbers to voicemail is a reasonable default for most people, since a real caller will usually leave a message. If you are waiting on a delivery or a callback from a number that hides itself, it is worth checking voicemail rather than assuming the call was junk.

The history lookup deserves a look early on. Going through the numbers already logged in your phone and seeing which ones the app can name gives you a quick sense of how much of your unwanted traffic it recognizes, and it makes building the block list far less tedious than adding entries one at a time as calls arrive.

A capable filter for a phone number that gets too much traffic

Mr. Number is a sensible install for anyone whose number has become a target for telemarketers, debt collectors or outright fraud attempts. The mix of broad blocking rules, name lookup on your existing call history and shared spam reports covers the problem from several angles, and the free download with no ads makes trying it a low-stakes decision.

I'd point it toward people who want to stop unwanted calls rather than merely screen them, and who don't mind contributing a report now and then to keep the community warnings useful. The 3.9 average across a large number of ratings suggests a tool that works for many users without satisfying everyone, which is about what I would expect from call filtering.

If you want a free starting point that identifies callers and gives you real control over the block list, this is a reasonable place to begin.

What's new in version 14.7.5-11717

Hello there, Mr. Number here! This update contains bug fixes and performance improvements.