Nomorobo Max

Communication · Telephone Science Corp

Nomorobo Max icon
961 ratings
4.1
Installs
50K+
Price
Free
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Nomorobo Max screenshots

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The most unusual thing about Nomorobo Max is that it doesn't simply silence unknown callers. It answers them first. When a number you don't recognize rings your line, the app asks whoever is on the other end to give their name and explain why they're calling, then plays that short message back to you so you can accept the call, reject it, or push it to voicemail. That extra step is the whole idea, and it shapes everything else about the service.

It is built for people in the United States who get more nuisance calls than they can reasonably field and who are willing to pay for a filter that sits between them and the phone network. The developer, Telephone Science Corp, has been in this space long enough to have won the FTC's 2013 Robocall Challenge, and the service is described as being used by more than 2.5 million people daily. If your number is on one of the supported carriers and spam is a daily irritation, this is the audience the app is written for.

How the screening actually plays out

The flow is deliberately simple. An unknown caller is intercepted, asked to identify themselves, and held there while you listen to a brief recording. From that point you have three choices: take the call, decline it, or let it go to voicemail. The decision stays with you rather than being made automatically, which matters if you run a small business, take deliveries, or otherwise depend on calls from numbers you haven't saved.

Two checks run alongside that conversation. The incoming number is compared against a global database of scam numbers, and the caller's speech is examined for wording and phrasing that tends to show up in fraudulent calls. Neither check is described as a guarantee, but together they give the app more to work with than a plain blocklist, because a number that has never been reported can still be judged on how the caller talks.

Contacts are handled differently from strangers. Calls from people already in your phone ring through as they normally would, so the screening layer only applies to the unknown. Once a call has been dealt with, you can block that number permanently or add it to your contacts if it turns out to be legitimate. That last option is the one I'd expect to use most in the first week, since a screened call that turns out to be your pharmacy or a contractor is exactly the case the app is designed around.

Text messages get a pass of their own

Spam filtering isn't limited to voice. With SMS screening switched on, messages from senders who aren't in your contacts are analyzed, and the sending number is checked against a robocaller database. Links inside those messages are also compared against a database of suspicious URLs, which is the part that addresses the phishing texts that try to look like a delivery notice or a bank alert.

Flagging rather than deleting is the sensible approach here, and it's how the feature is described. You keep the ability to look at what arrived and make your own judgment, which is useful when a genuine one-time code or appointment reminder comes from a short code you've never seen before. The screening adds a warning layer; it doesn't take the message out of your hands.

Call logs, voicemail and the pause switch

Everything that gets stopped is recorded. The call log lets you see the calls that were blocked, and you can listen back to them as well, which turns the log into a useful record rather than a list of numbers. If a call you wanted was caught, you can hear what was said and decide whether to reach out, and the pattern of what's being blocked over a few weeks tells you something about how your number has been circulating.

Voicemail is handled inside the app too. The developer describes it as an instant voicemail service with notifications and transcriptions, so messages arrive promptly and can be read rather than played. Transcriptions are rarely perfect, but having the gist of a message in text is convenient when you're deciding whether a call deserves a response.

There's also a pause. If you're expecting a call from a number you haven't saved, you can switch protection off temporarily so the screening doesn't get in the way. That's a small feature, but it's the one that keeps the app from becoming an obstacle on the days when an unknown caller is exactly who you're waiting for.

What it requires, and what comes with it

Nomorobo Max lists support for AT&T, T-Mobile, Verizon, Xfinity Mobile, Mint Mobile and Spectrum Mobile. It is a US-focused service built around those networks.

The second thing to understand is the cost. Nomorobo Max is a subscription service, and the developer's own terms describe a trial followed by automatic renewal charged through your Google Play account. You have to cancel a day before the current billing period ends, and Google Play settings are where subscriptions get managed. The app itself is free to download, with in-app purchases tied to the subscription. If you decide to stop, you'll want to handle it in the store rather than by uninstalling.

Support is by email only. The developer points users to [email protected] and states plainly that there is no phone-based support, which is worth knowing if you prefer to talk a problem through with someone. On the privacy side, the app's pitch is that your contacts stay on your phone, your location isn't tracked, and no ads are shown. Those are the developer's claims, and they're the right ones to make for a tool that has to see your incoming calls to do its job.

One more practical note: the carrier requirement and the subscription are the two constraints that decide whether this app makes sense for you at all. Everything else about it is a matter of how much you value having a screen between you and unknown callers.

Who this fits

Nomorobo Max is for someone on one of the six supported carriers who is tired of deciding, several times a day, whether an unfamiliar number is worth answering. It suits people who want to keep receiving calls from numbers they haven't saved, because the app doesn't shut those calls out; it makes the caller identify themselves first and lets you choose. Anyone who runs a household line, a small business, or a phone that gets passed around will recognize the value in that.

It also suits people who care about where their contact list lives. The app is built so that contacts stay on the device, and the developer makes a point of no ads and no location tracking. If you've avoided call blockers because you didn't want to upload your address book somewhere, that design choice is the reason to look at this one.

The subscription is the part to weigh. It's a paid service with a trial and automatic renewal, so it's best treated as an ongoing expense rather than a one-time download. If nuisance calls are a minor annoyance for you, that math may not work; if they interrupt your day and you're on a supported network, the case for paying is easier to make.

A paid screen for a noisy phone line

Nomorobo Max takes a different route from a simple blocklist. It answers unknown callers, asks them to explain themselves, checks the number and the caller's language against scam databases, and hands the decision back to you. Texts get similar treatment, with unknown senders and any links they contain checked against their own databases. Call logs you can listen to, voicemail with notifications and transcriptions, and a pause switch round out a package that covers the ways unwanted contact usually arrives.

Support is email only. The app holds a 4.1 average from 961 ratings and has passed 50,000 installs since its March 2023 release.

If you're on a supported carrier and spam calls are a regular disruption, this is a well-targeted tool with a sensible design and a fair amount of transparency about how it protects your data. If you're on another network, or you'd rather not add a recurring charge for something you can mostly ignore, the fit isn't there. For everyone in between, the trial is the sensible way to find out whether the screening is worth keeping on your phone.

The short verdict

A well-designed paid call and text screener for people on the six supported US carriers who want control over unknown callers.

What's new in version 2.4.3

- Bug fixes

App specs

  • Version2.4.3
  • UpdatedSeptember 30, 2026
  • Downloads50K+
  • RequiresAndroid 10+
  • PriceFree
  • Age ratingEveryone

Nomorobo Max: frequently asked questions

How does Nomorobo Max handle a call from a number I don't recognize?

The app intercepts the call and asks the person to say their name and the reason for calling. The short message plays, and you decide whether to take the call, decline it, or pass it to voicemail. Afterward you can block the number or save it to your contacts if it turns out to be someone you want to hear from.

Which phone carriers does Nomorobo Max work with?

The service lists support for AT&T, T-Mobile, Verizon, Xfinity Mobile, Mint Mobile and Spectrum Mobile. Those are the networks it is built around, so it's worth checking your carrier against that list before subscribing. It is aimed at US phone lines.

Does it filter spam text messages as well as calls?

Yes. Any URLs in the message body are also compared against a database of suspicious links, which helps with phishing texts that imitate banks or delivery services.

What does Nomorobo Max cost?

It is a subscription service. The developer's terms describe a trial period followed by automatic renewal, with the charge applied to your Google Play account. Cancelation needs to be done at least 24 hours before the current period ends, and subscriptions are managed in your Google Play settings.

Can I turn the screening off when I'm expecting an unknown call?

Yes. The app includes a pause option so you can switch protection off temporarily when you're waiting on a call from a number you haven't saved. That way the screening doesn't stand between you and a caller you actually want to reach.

Pros

  • Unknown callers must identify themselves first
  • Screens texts, links and caller language
  • Contacts stay on your phone
  • Call logs you can listen back to
  • Pause option for expected unknown calls

Cons

  • Limited to six supported US carriers
  • Subscription with automatic renewal after trial
  • Email-only customer support
  • In-app purchases tied to the subscription

eFreeware is independent and is not affiliated with Telephone Science Corp. We do not host app files: downloads come from the official Google Play listing. App names, icons and screenshots belong to their owners. Developer contact: [email protected]. Developer privacy policy.