Scammer Guardian vs Nomorobo: Which Is Better in 2026?

Scammer Guardian and Nomorobo solve different problems. Scammer Guardian uses live AI to screen every unknown caller in real time, catching new scam numbers and live human scammers. Nomorobo uses a blocklist of ~5 million known robocall numbers, fast and cheap, but blind to anything new or live. The right choice depends on what you're protecting against.

Quick comparison

The fundamental architectural difference

This is the part most other comparisons miss. Nomorobo and Scammer Guardian use completely different methods.

Nomorobo's method: When a call comes in, Nomorobo checks the calling number against a database of known scam numbers (~5 million entries, refreshed every ~15 minutes). If it's on the list, the call is blocked. If it's not on the list, the call rings through.

Scammer Guardian's method: When a call comes in from any number not in the user's contacts, an AI assistant answers the call before it rings. The AI asks the caller to identify themselves and their reason for calling. Based on what the caller actually says, the AI decides in 2-3 seconds whether to connect the call or block it.

The implication: Nomorobo can only block scams it has seen before. Scammer Guardian can block scams it has never seen, including:

• New scam numbers (most scammers rotate numbers daily)
• Live human scammers using a fresh phone
• AI voice clones impersonating family members
• Spoofed caller IDs (because Scammer Guardian doesn't trust caller ID, it trusts what the caller says)

This is why the Nomorobo basic vs max distinction exists: Nomorobo has been adding more analysis layers to compensate for blocklist limitations. Scammer Guardian skipped the blocklist approach entirely and went straight to conversational AI.

Use case: which one is right for which person?

Choose Nomorobo if:

• You are tech-savvy, can ignore obvious scam calls yourself, and just want fewer rings.
• You have a landline and want a free option (Nomorobo is free for landlines, Scammer Guardian's landline product launches late 2026).
• You want the cheapest possible call blocking and don't need scam-specific protection.
• You don't need a guardian to be alerted when something happens.

Choose Scammer Guardian if:

• You are setting up phone protection for an elderly parent or grandparent.
• You want protection from live-human scams (grandparent scam, IRS impersonation, romance scam first calls), not just robocalls.
• You want guardian alerts when a scam is blocked, so you stay informed.
• You want a guardian dashboard with call history, transcripts, and recordings.
• You want protection from AI-generated voice clones.

Pricing in detail

Nomorobo Basic: $1.99/month or $19.99/year for mobile. Free for landlines. Provides blocklist-based call blocking. Acquired ~5M numbers in their database.

Nomorobo Max: $4.17/month or $49.99/year. Adds caller analysis on top of the basic blocklist. Available on AT&T, T-Mobile, Verizon, Spectrum Mobile, Mint Mobile, Cricket, Visible, and Xfinity Mobile (more limited carrier coverage than Basic).

Nomorobo Family Plan: $79.99/year for up to 4 devices.

Scammer Guardian Calling Base: $29/month per protected line. Includes AI conversation screening, real-time guardian alerts, daily summaries, call transcripts, and the guardian dashboard.

Scammer Guardian Calling Premium: $39/month per protected line. Adds GPT-4o screening, AI-voice-clone detection, and custom ElevenLabs voice options.

The honest math on price: Nomorobo is much cheaper. If your only goal is "fewer robocalls reach my phone," Nomorobo at $20/year is hard to beat. Scammer Guardian costs roughly $350/year per line. The price difference reflects two things: (1) running real-time AI on every call costs us money per call, and (2) we are built specifically for protecting seniors from high-cost scams (one blocked grandparent scam at $9,000 average loss pays for ~25 years of subscription).

What real users say

Nomorobo's app store reviews in 2026 reflect a known issue with their tiered pricing: longtime Basic users report seeing more spam calls slip through after the launch of Nomorobo Max, with several reviewers calling out the perception that Basic was deliberately downgraded to drive Max upgrades. Nomorobo's official response notes that Basic and Max are separate services with different functionality.

Scammer Guardian is newer (launched early 2026) and has a smaller review corpus. We don't display fake reviews on this page; real customer feedback will populate as our review base grows.

Can you use both?

Yes. They don't conflict, Nomorobo and Scammer Guardian intercept calls through different mechanisms (Nomorobo via the OS-level blocklist, Scammer Guardian via the call screening API). However, most families that switch to Scammer Guardian cancel Nomorobo because Scammer Guardian's coverage is broader.

Frequently asked

Does Nomorobo work on landlines? Does Scammer Guardian?

Nomorobo works on landlines (and is free for landline use), this is its strongest feature. Scammer Guardian's landline product is in development for late 2026.

Which is faster to set up?

Both setups take about 5 minutes. Nomorobo's setup requires call forwarding configuration on iOS. Scammer Guardian uses the same iOS approach plus an Android-native CallScreeningService integration that requires one permission prompt.

Is Nomorobo's blocklist actually 5 million numbers?

Nomorobo's marketing has cited 5+ million known robocallers in their global blocklist (Nomorobo Basic). Nomorobo Max specifically markets a database of over 11 million known robocallers in their App Store listing.

Why does Scammer Guardian cost ~15× more than Nomorobo?

Because we run a real AI conversation with every unknown caller. That AI usage has a per-call cost, and there's no way to do conversational screening for $1.99/month at scale. The cost difference is the product difference.

Which is better for catching grandparent scams?

Scammer Guardian. Grandparent scams are run by live human callers using fresh numbers, Nomorobo's blocklist cannot catch them. Scammer Guardian's AI asks follow-up questions that fall the scam narrative apart.

Bottom line

Nomorobo is a great robocall blocker for the price. If you want to block obvious robocalls cheaply on your own phone or your landline, it's a solid choice.

Scammer Guardian is a different product. It is built for adult children setting up phone scam protection for an aging parent. It catches the live-human scams that Nomorobo misses, at a higher price point that reflects the cost of running real AI screening on every call.

If you're protecting a parent from $9,000 grandparent scams, Scammer Guardian is the right choice. If you're trying to reduce annoying robocalls on your own phone, Nomorobo is fine.

[Start 7-Day Scammer Guardian Free Trial →]

Last updated: April 22, 2026. Nomorobo pricing and feature data sourced from nomorobo.com, Apple App Store, and Google Play Store. Scammer Guardian features and pricing reflect current production state.