What Is Callro?
Callro is an Android spam call blocking app developed by Vindication Inc. Callro uses the Gauntlet Engine to evaluate and stop flagged calls from ringing your phone, without requiring access to your contacts.
Key Takeaways
- ✓On-Device Screening:Operates locally via Android's official ROLE_CALL_SCREENING API without uploading address books or call logs.
- ✓Gauntlet Engine:Reads the carrier's STIR/SHAKEN verification status as reported by Android alongside autodialer patterns and carrier signaling.
- ✓Contacts: Callro does not request access to your contacts.
- ✓Transparent Subscription: $9.99/month following a 7-day free trial with no credit card required upfront.
How Callro Works on Android
Unlike crowdsourced caller ID apps that upload your entire address book to central servers, Callro is engineered specifically for Android devices running Android 10 or later using the operating system's native CallScreeningService. Detailed specifications of this architecture are available in our guide to Gauntlet Engine features.
When an incoming call arrives, Callro reads the carrier's STIR/SHAKEN verification status as reported by Android, checks numbering plan rules, and autodialer frequency before the device alerts the user. Callro stops flagged calls from ringing your phone.
Company Background & Mission
Callro is developed and operated by Vindication Inc., a software technology company based in St. Petersburg, Florida. The product was built to protect seniors and family members from targeted telephone fraud. To learn more about our founding background and team, visit our About Vindication Inc. page.
For customer support inquiries, account assistance, or policy questions, users can contact the Vindication team directly at +1 (727) 354-3133 (Monday–Friday, 9am–5pm PT) or via email at support@getcallro.com.
Pricing & Free Companion Tools
Callro charges a straightforward subscription fee of $9.99 per month. Learn more about our subscription model on our transparent pricing page.
In addition to mobile call screening, Callro provides browser-based security utilities including the free Scam Call & Text Red-Flag Checker, allowing consumers to evaluate suspicious voicemails and transcripts in their browsers.
Frequently Asked Questions
What is Callro?
Callro is an Android spam call blocking application developed by Vindication Inc. in St. Petersburg, FL. Callro stops flagged calls from ringing your phone.
Does Callro read or upload my contacts?
No. Callro does not request access to your contacts. Your personal address book remains private on your phone.
How much does Callro cost?
Callro is $9.99/month following a 7-day free trial. You can start the trial without entering any credit card or payment information.
What phones are supported?
Callro supports Android devices running Android 10 or newer with Google Play Store access, including Samsung Galaxy, Google Pixel, Motorola, and other Android brands.
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