Block spam calls,
SIM by SIM.
Spam, scam and telemarketing calls, stopped before they ring. Set different rules for each SIM, on a single-SIM or a dual-SIM phone.
Rules for each SIM
Block a number on your work SIM and let it through on your personal one. Every control tells you which SIM it applies to.
Always block, always allow
Keep your own lists of numbers. Pick one from your contacts or type it with its country code. A call that arrives without a country code is matched using your SIM's country.
Block whole countries
Block the countries you list, or only accept calls from the countries you list.
Quiet hours and Block all
Silence every call at night or for a while, per SIM. Numbers on Always allow still ring.
Test a number
See which rules match a number and which one decides, before it ever calls.
History
Every blocked call with the contact name, number, country, SIM and time, in a chart and a searchable list.
- Always allowNumbers on your allow list always ring.
- Block allWhile on, every other call on that SIM is rejected.
- Quiet hoursDuring the times you set, every other call on that SIM is rejected.
- Other rulesYour block list, countries and hidden numbers.
The first match decides. If nothing matches, the call rings.
Free for 3 days, then one purchase
Try everything free for 3 days. You can unlock at any time, during the trial or after it, with a single one-time in-app purchase that keeps blocking on. No subscription, no ads, no account. Needs Android 10 or newer.
Everything stays on your phone
SimShield never listens to your calls. Your lists, rules and call history are stored on your device only, and nothing is sent anywhere. Read the privacy policy.