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Head-to-head · Spam Call Blocking Apps

T-Mobile Scam Shield vs AT&T ActiveArmor

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score T-Mobile Scam Shield #2 in Spam Call Blocking Apps 9.1/10 Free plan Free plan✓ 2 of 4 features Visit T-Mobile
AT&T ActiveArmor #5 in Spam Call Blocking Apps 8.7/10 Free plan Free plan✓ 3 of 4 features Visit AT&T

T-Mobile Scam Shield leads on 0 checks, AT&T ActiveArmor on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreT-Mobile Scam Shield · 9.1/10
  • Free planboth
  • Most featuresAT&T ActiveArmor · 3 of 4

T-Mobile Scam Shield scores higher on our rubric for spam call blocking apps: 9.1 against 8.7 out of 10; our editors rank them #2 and #5.

T-Mobile Scam Shield is the better fit for T-Mobile customers wanting carrier-integrated protection. AT&T ActiveArmor is the better fit for AT&T customers wanting free baseline protection.

  • T-Mobile Scam Shield fits best

    T-Mobile customers wanting carrier-integrated protection

  • AT&T ActiveArmor fits best

    AT&T customers wanting free baseline protection

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature T-Mobile Scam Shield 9.1/10 Visit ↗ AT&T ActiveArmor 8.7/10 Visit ↗
At a glance
Editor score 9.1 8.7
Ranking #2 in Spam Call Blocking Apps #5 in Spam Call Blocking Apps
Best for T-Mobile customers wanting carrier-integrated protection AT&T customers wanting free baseline protection
Pricing model Free plan + paid Free plan + paid
Starting price — $7/unit/mo
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Mobile Mobile
Platforms iOS, Android iOS, Android
Support Docs Docs
Built for Solo, Small business Solo, Small business
Features T-Mobile Scam Shield 2/4 · AT&T ActiveArmor 3/4
Robocall blocking ✓ (best) Not checked yet
Caller ID ✓ ✓
Call screening Not checked yet ✓ (best)
Community reports Not checked yet ✓ (best)
Specs
Supported platforms Both Both
Blocked-number limit Not checked yet Not checked yet
Our review
Pros
  • Free Scam Likely identification and automatic Scam Block
  • Blocks spam texts and sends unwanted calls to voicemail
  • Premium adds category blocking and reverse number lookup
  • Free fraud-risk and spam-risk call blocking
  • Custom routing, personal block list, and caller ID options
  • Available on compatible iOS and Android phones
Cons
  • Requires qualifying T-Mobile service and a capable device
  • Premium costs $4 per line per month
  • Some features depend on supported devices or account eligibility
  • Requires AT&T wireless service
  • Compatible device required
  • Caller ID and reverse lookup require Advanced
Our verdict

T-Mobile Scam Shield is a network-based scam protection service for eligible T-Mobile customers. It identifies Scam Likely and Potential Spam calls, can automatically block suspected scam calls, sends unwanted calls to voicemail, blocks…

Read the review →

AT&T ActiveArmor is a mobile security app for AT&T wireless customers with compatible iOS and Android phones. Its free tier focuses on unwanted-call protection, with fraud-risk call blocking, spam-risk labeling and blocking, custom call…

Read the review →
  1. T-Mobile Scam ShieldSpam Call Blocking Apps 9.1Free plan
  2. AT&T ActiveArmorSpam Call Blocking Apps 8.7Free plan

Strengths and trade-offs

  • T-Mobile Scam Shield — where it wins

    • Free Scam Likely identification and automatic Scam Block
    • Blocks spam texts and sends unwanted calls to voicemail
    • Premium adds category blocking and reverse number lookup

    Where it doesn't

    • Requires qualifying T-Mobile service and a capable device
    • Premium costs $4 per line per month
    • Some features depend on supported devices or account eligibility
  • AT&T ActiveArmor — where it wins

    • Free fraud-risk and spam-risk call blocking
    • Custom routing, personal block list, and caller ID options
    • Available on compatible iOS and Android phones

    Where it doesn't

    • Requires AT&T wireless service
    • Compatible device required
    • Caller ID and reverse lookup require Advanced

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update