PriviGuard: Android OTP Shield

Privacy‑conscious users face the risk of OTPs leaking to cloud‑based filter apps, yet they still need instant, reliable notification filtering. PriviGuard offers a fully offline, on‑device solution that detects and processes OTPs with local ML, eliminating cloud exposure while preserving native Android performance.

Quantitative Score Breakdown

complaint frequency

1.5

growth rate

competition density

10.5

monetization potential

technical feasibility

7.5

search interest

4.8

Evidence Signal (1)

Raw Posts

reddit • r/androiddev

I built a fully offline notification filter for Android (Kotlin + Rust/JNI + on-device ML) because every "smart filter" app ships your OTPs to a cloud server

I built a fully offline notification filter for Android (Kotlin + Rust/JNI + on-device ML) because every "smart filter" app ships your OTPs to a cloud server. I built a fully offline notification filter for Android (Kotl

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