Head-to-head · Spam Call Blocking Apps
T-Mobile Scam Shield vs AT&T ActiveArmor
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
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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 |
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| Cons |
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| 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 → |
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
- T-Mobile Scam Shield9.1/10 · Free plan
A free core service for T-Mobile customers, with paid call-management upgrades.
Visit T-MobileFull verdict → - AT&T ActiveArmor8.7/10 · Free plan
A broad free call-blocking baseline for AT&T wireless customers.
Visit AT&TFull verdict →
More comparisons
- Truecaller vs T-Mobile Scam Shield
- Truecaller vs AT&T ActiveArmor
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- T-Mobile Scam Shield vs Hiya Spam Blocker
- T-Mobile Scam Shield vs Kaspersky Who Calls
- T-Mobile Scam Shield vs Samsung Smart Call
- T-Mobile Scam Shield vs Orange Téléphone
- Verizon Call Filter vs AT&T ActiveArmor
All spam call blocking apps comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update




