SpamGuard for Android
Spam calls die in silence. Your phone never rings.
SpamGuard is your digital firewall for calls — it screens every incoming call on-device and rejects the ones you never wanted, before the first ring.
v1.2.1 · updated 2026-07-03 · not on the Play Store — installs directly
Everything it blocks, and how
Blocked before the first ring
SpamGuard registers as your phone’s call-screening service, so blocked calls are rejected silently before they ever ring — no interruptions, no missed-call spam.
Numbers and whole prefixes
Block a single number or an entire prefix (like a country or carrier range). Matching is country-code tolerant, so "+234 801…" and "0801…" are treated as the same number.
Unknown-caller filter
Optionally reject any caller who isn’t in your contacts — the strongest defence against rotating spam numbers.
Hidden numbers rejected
Calls with a withheld or private caller ID can be silently rejected before they ring.
A log of everything blocked
Every blocked call is recorded with per-number counts and stats, so you can see exactly what SpamGuard has been stopping for you.
Encrypted VaultKeep sync
Sign in with your VaultKeep account to keep a copy of your block list in the cloud. Your master password never leaves the device — only a proof of knowledge is sent.
Private by design
Screening happens entirely on your phone — call data never leaves the device. Cloud sync is optional and only stores your block list, protected by your VaultKeep account. Your master password is used locally to prove who you are; it is never sent anywhere.
Get SpamGuard
- 1. Download the APK and open it to install (allow installs from your browser if asked).
- 2. Set SpamGuard as your call-screening app when prompted — this lets it block calls before they ring.
- 3. Add numbers or prefixes, or turn on the unknown/hidden caller filters. Done.