How to Set Up Scammer Guardian on Your Parent's Android Phone (2026 Step-by-Step Guide)

Setting up Scammer Guardian on your parent's Android phone takes about 3 minutes, faster than iPhone because Android allows third-party apps to register as the device's call screener directly, with no call-forwarding codes required. After setup, the protection runs at the OS level: scam calls are intercepted before the phone ever rings, and your parent's phone behaves normally for legitimate callers.

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Why Android setup is faster than iPhone

iPhone restricts third-party apps from intercepting calls directly, so Scammer Guardian on iPhone uses call-forwarding codes (*61, *62, *67) to route unknown calls to our screening number, then pushes verified-safe calls back via VoIP notification. It works well, but it's a multi-step setup.

Android is more open. The OS provides a native API called CallScreeningService that lets a designated app intercept all incoming calls, evaluate them in the background, and decide whether to ring through. Scammer Guardian registers as that screener, one permission prompt, and the rest is automatic.

This means: no codes, no carrier-specific configuration, faster setup, and slightly faster screening (typically 1–2 seconds vs 2–3 on iPhone).

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What you'll need

• Your phone (the guardian's phone, iPhone or Android, doesn't matter)
• Your parent's Android phone running Android 11 or later (most phones from 2020 onward)
• Your credit card for the 7-day free trial
• About 5 minutes with your parent's phone, in person or guided over a video call
• (Optional but helpful) Your parent's Google account password: needed for app installation if their phone isn't already signed in

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Total time: about 3 minutes

Step	Time	Who does it
Sign up for an account	30 seconds	You
Install app on your phone	1 minute	You
Install app on your parent's phone	1 minute	Your parent (with guidance)
Set as default phone screener	30 seconds	Your parent (one tap)
Test the setup	30 seconds	Both of you

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Step 1: Create your account

1. On your phone or computer, go to scammerguardian.com/sign-up
2. Enter your name and email
3. Choose a password
4. Enter your phone number (where SMS scam alerts will be sent)
5. Enter your parent's name and phone number
6. Select "Android" as their phone type
7. Enter your payment info to start the 7-day free trial

You'll get a confirmation email and a 6-digit linking code.

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Step 2: Install the Scammer Guardian app on your phone

1. Open the Google Play Store (or App Store if you use iPhone)
2. Search for "Scammer Guardian"
3. Tap Install
4. Open the app and sign in with the email and password you just created
5. Allow notifications when prompted

This is your guardian dashboard, call history, blocked scams, transcripts, recordings, whitelist management.

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Step 3: Install the app on your parent's Android phone

1. On your parent's phone, open the Google Play Store
2. Search for "Scammer Guardian"
3. Tap Install
4. Open the app
5. Tap "I'm being protected" (not "I'm a guardian")
6. Sign in with the same email/password, or enter the 6-digit linking code shown on your guardian dashboard

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Step 4: Grant the required permissions

This is the only step that requires your parent's input. The app will request permissions in this order:

4a. Notifications

• Tap Allow when prompted
• This is how your parent's phone receives info about screened calls (though they don't need to read these, you do)

4b. Contacts

• Tap Allow
• This auto-imports your parent's contacts to the whitelist so all known callers ring through instantly

4c. Phone (read call state)

• Tap Allow
• Required for the app to know when calls come in

4d. Set as default call screening app

• The app will prompt: "Allow Scammer Guardian to screen your calls?"
• Tap Set as default
• A system dialog will appear asking to confirm, tap Set as default again

This is the most important permission. It's what allows Scammer Guardian to intercept calls before they ring.

4e. Display over other apps (Samsung phones only)

• Some Samsung devices add this permission
• Tap Allow
• Required for the call-pass-through to work smoothly

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Step 5: Confirm the whitelist imported

After granting permissions, the app should show: "Whitelist imported, [N] contacts protected."

If you want to selectively whitelist instead of importing all contacts, tap "Manage whitelist" and choose individuals. For most users, importing everyone is correct, it eliminates the most common false-positive scenario (a known contact briefly screened).

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Step 6: Test the setup

1. From your phone (or any phone not in your parent's contacts), call your parent's number
2. Within 1–2 seconds, the call should go to AI screening (your parent's phone won't ring yet)
3. You'll hear: "Hi, this is the call screener for [parent's name]. Who's calling and what is this regarding?"
4. Say something like: "This is [your name], calling to test the setup."
5. Within 2–3 seconds, your parent's phone should ring
6. Answer to confirm two-way audio works
7. Hang up

If the test works: Setup is complete. Your first scam-blocked SMS alert will likely arrive within 24–72 hours.

If the test fails:

• Phone never rang and AI never answered: Scammer Guardian wasn't set as the default screener. Re-run Step 4d.
• AI answered but the phone didn't ring on PASS: Notification permission issue. Settings → Apps → Scammer Guardian → Notifications → Enable all categories.
• AI answered but audio didn't connect: Display-over-other-apps permission (Samsung) wasn't granted. Re-run Step 4e.

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Step 7: Confirm everything from your dashboard

Open the Scammer Guardian app on your phone:

• Status: Should show "Protection active"
• Whitelist count: Should match contacts imported
• Test call: Should appear in the call history with verdict "PASS"

You're done. You'll get an SMS the next time a scam is blocked.

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Manufacturer-specific notes

Samsung (Galaxy S, A series, Note)

• Samsung's built-in Smart Call feature (powered by Hiya) may also try to label calls. This doesn't conflict with Scammer Guardian, but you can disable Smart Call if you don't want double labeling: Phone app → Settings → Caller ID and Spam Protection → off.
• Samsung's "Block unknown callers" setting must be OFF for Scammer Guardian to work, otherwise Samsung blocks the call before our app sees it: Phone → Settings → Block Numbers → "Block unknown callers" → OFF.
• Some Samsung phones add an extra "Display over other apps" permission (covered in Step 4e).

Google Pixel

• Pixel phones have a built-in Google Call Screen feature. This does conflict with Scammer Guardian, only one app can be the default screener. The setup process will prompt you to switch from Google Call Screen to Scammer Guardian. Tap Set as default to confirm.
• Pixel users sometimes report a brief "Pixel Call Screen" UI flash before Scammer Guardian takes over. This is cosmetic and doesn't affect screening.

Motorola, OnePlus, Xiaomi, OPPO

• Generally work like stock Android.
• OnePlus and Xiaomi devices have aggressive battery optimization that can put background apps to sleep. To prevent this: Settings → Apps → Scammer Guardian → Battery → "Don't optimize" or "No restrictions."
• This is the single most common Android-setup issue we see, without disabling battery optimization, the app may not respond fast enough to screen incoming calls.

Carrier-locked Android phones (Verizon, AT&T, T-Mobile)

• All work normally.
• T-Mobile's Scam Shield can run alongside Scammer Guardian, they don't conflict. Many users keep Scam Shield on for the carrier-level reputation labeling layer.
• Verizon's Call Filter can also run alongside.

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Common issues and fixes

"Calls are coming through without being screened"

Almost always means Scammer Guardian isn't set as the default screener. Re-run Step 4d. On some devices, you can verify this at:

• Settings → Apps → Default apps → Caller ID and spam app → should show "Scammer Guardian"

"Calls are being blocked but they're real callers"

Add the caller to whitelist from the SMS alert (one tap), or from the dashboard. The AI errs on the side of asking follow-up questions when intent is unclear, which can occasionally block first-time legitimate callers who give very short answers ("Hello?"). Whitelisting fixes future calls from that number.

"The app keeps getting force-stopped"

Aggressive battery optimization on Samsung, OnePlus, Xiaomi, and OPPO. Disable battery optimization specifically for Scammer Guardian (see manufacturer notes above).

"My parent uses an old Android phone: will it work?"

Android 11 (released 2020) is the minimum. Earlier versions don't expose the CallScreeningService API we need. If your parent's phone is older than ~5 years, it's probably also a good time to upgrade for security reasons regardless.

"We tested and it works: but no scams have been blocked yet"

Normal. Average time to first blocked scam is 24–72 hours. The dashboard will show non-scam screened calls (delivery drivers, telemarketers, wrong numbers) in the meantime, that's the AI working correctly.

"A real caller said they got the AI"

Whitelist them from the SMS alert. The AI will pass them through directly next time. You can also bulk-whitelist by area code from the dashboard.

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What happens next

Now that you're set up:

• You'll get SMS alerts every time a scam is blocked, with the AI's one-line summary
• You'll get a daily email every morning summarizing the previous day's calls
• You'll get a weekly report with trends and the most common scam types your parent was targeted by
• Your parent will notice nothing different: phone rings normally for real callers, silently blocks scammers

Within the first week, expect 3–30 scam attempts blocked depending on how heavily targeted your parent's number is. Numbers on scammer "sucker lists" (people who have been previously scammed or have responded to robocalls) receive significantly higher volume.

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Setting up an iPhone instead?

If your parent uses an iPhone, see our iPhone setup guide. iPhone setup uses call-forwarding codes (Apple's restrictions don't allow direct call interception by third-party apps) and takes about 5 minutes.

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Frequently asked

Does my parent need to keep the Scammer Guardian app open?

No. The app runs in the background as the device's registered call screener. They can ignore it forever after setup.

Will this drain my parent's battery?

Minimal impact. The CallScreeningService API is designed by Google to be battery-efficient. Most users see no measurable difference.

Will my parent see notifications about every screened call?

No. Only critical alerts (errors, your guardian SMS for blocked scams goes to your phone, not theirs). Day-to-day, your parent's phone shows nothing about Scammer Guardian.

What if my parent gets a new Android phone?

Reinstall the app on the new phone, sign in, grant permissions, and you're back to protected. The whitelist syncs from your account.

Does it work if my parent uses Wi-Fi calling?

Yes. Wi-Fi calling routes through the same OS call APIs as cellular calls, so Scammer Guardian works identically.

Does it work if my parent uses Google Voice as their primary number?

Partially. Google Voice forwards calls to the phone's underlying number, which Scammer Guardian can screen, but caller ID may show as the Google Voice number, which can affect whitelisting. Most Google Voice users get good results; some need manual whitelisting setup. Email support@scammerguardian.com if you run into issues.

Can I share guardian access with my siblings?

Single-guardian only as of April 2026. Multi-guardian is on the roadmap.

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Need help?

• support@scammerguardian.com: real human response within 24 hours
• Live chat in the guardian dashboard during business hours
• Video walkthrough at scammerguardian.com/android-setup-video

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[Start 7-Day Scammer Guardian Free Trial →]

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Last updated: April 22, 2026. Android setup procedures verified against Android 11–15 across Samsung Galaxy, Google Pixel, Motorola, OnePlus, and stock Android devices. Carrier integrations verified for Verizon, AT&T, T-Mobile, US Mobile, Mint, Visible, Cricket, Spectrum Mobile, and Xfinity Mobile.