Built with Jetpack Compose — featuring lightning-fast T9 speed dial, intelligent Dual SIM support, rootless Shizuku call recording, and a biometric Private Vault.
Tap keys below or type numbers on your keyboard to test Rivo's instant contact search.
Contacts matching your keypad sequence appear instantly with search highlights:
Engineered with 100% on-device privacy, Material 3 Expressive aesthetics, and low-level system integrations.
Capture crystal-clear internal audio from both sides of the call using Android's low-level system permissions via Shizuku. No root required, no unlocked bootloader, and zero SafetyNet/Play Integrity tripping—with seamless microphone fallback.
Isolate confidential contacts completely from Android's shared provider. Call history is kept in an encrypted SQLite vault, and incoming call notifications remain hidden or masked until unlocked with fingerprint, face auth, or PIN.
Transform standard round avatars into 36 geometric shapes—including our signature 9-sided Cookie (COOKIE_9), Scallop, Flower, and Star geometries with real-time Gaussian wallpaper blur.
Set preferred outbound SIMs per contact, toggle lines on the fly directly from the keypad with single-tap ease, and enjoy carrier branding and color-coded call logs.
Lightning keypad search matching contact names and numbers simultaneously with zero lag, 1–9 speed dial shortcuts, automated spam blocking, detailed call analytics with contact frequency charts, and emergency fake incoming calls.
Explore full-resolution screens crafted with Jetpack Compose and Material 3 Expressive.
Clear answers regarding call recording, privacy, customization, and releases.
No! Rivo leverages Shizuku to record crystal-clear, two-way internal call audio directly through Android's low-level system APIs without rooting your device, unlocking your bootloader, or tripping SafetyNet/Play Integrity. If Shizuku is not running on your device, standard microphone recording is immediately available as an automatic fallback.
Rivo is built with the latest Material 3 Expressive design tokens. Choose from 36 distinctive avatar shapes—including our signature 9-sided Cookie (COOKIE_9), Scalloped, Flower, Star, Pentagon, and Rounded Polygon geometries. In-call and incoming screens feature real-time Gaussian background blurs derived from the contact's photo and your dynamic Android wallpaper palette.
Contacts assigned to your Private Vault are strictly sequestered from Android's shared contacts provider. Their call logs and frequency records are kept in an encrypted, isolated database, and their incoming call notifications can be masked or hidden until unlocked with your fingerprint, face authentication, or device PIN.
The Google Play release is our thoroughly tested, stable production channel with seamless background auto-updates and support for the in-app Tip Jar. The Beta channel (available on our official Discord) provides immediate access to bleeding-edge features, new experimental UI animations, and rapid test builds before they reach public release.
Yes! Rivo includes intelligent Dual SIM support. You can set preferred SIM cards per contact, switch SIMs on the fly directly from the dialpad with a single tap, and view clear carrier badges on all call logs. Long-pressing any digit 1–9 triggers instant speed dial to your configured favorite contacts.
Rivo operates under a strict zero-telemetry policy. All contact indexing, T9 lookup calculations, call analytics, and audio recordings remain 100% on your local device. Rivo has no remote telemetry servers, requires no user account, serves zero advertisements, and never sells or uploads your personal information.
Developed by Grinch_ with feedback from thousands of enthusiastic Android users.
Download preview APKs, report bugs directly to Grinch_, and suggest features.
Get verified stable releases, automated silent updates, and support via the in-app Tip Jar.
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