Seismor Phone

Seismor

About this app

A dialer that only lets your contacts ring.

Spam filters work from a list of known nuisance numbers, and a first-time caller is never on it. This works the other way round: if you have not saved someone in your contacts, their call does not ring your phone.

Nothing to look up, nothing to report, nothing to keep current.

Only your contacts ring

• Calls from anyone not in your contacts are turned away before the phone rings
• Withheld and private numbers too — a number you cannot see is a number you cannot have saved
• Every turned-away call is listed, and any of them let through in one tap, with or without saving them as a contact
• Choose whether a turned-away caller is hung up on or sent to voicemail
• Emergency numbers are never screened, and neither is a call back from a number you dialled recently
• Made for children, the elderly, and anyone who would rather their phone stayed private

Expecting someone new?

Open the door for a set duration — a delivery, a clinic, a number you gave out once. Everything comes through while it is open, and it closes itself.

Built to stay out of your business

• No internet permission. The app cannot reach a server, so nothing about your calls can go to one
• No ads, no analytics, no crash reporting, no tracking
• No permission to read your call log, and none to record audio
• Your recents, blocked list and allowed numbers stay in the app's private storage
• Nothing is backed up to the cloud or carried across by phone-to-phone transfer. Uninstalling deletes it all

It replaces your dialer outright rather than sitting alongside it, so the keypad, the recents, the ringing screen and the call screen are all its own.

What it does not do

Worth knowing before you buy.

• It does not know who is calling, only whether you do. No caller ID lookup, no spam database
• No call recording. Official Android has not allowed it for years, whatever other apps imply
• No conference calls (only speakerphone)
• Recents start the day you install it: it cannot read your existing call log. Android keeps its own, so other apps still show your calls
• Calls go out on your phone's default calling SIM. There is no per-call SIM picker
• Between a restart and your first unlock, no app can read your contacts, so calls ring through
• English only. Android 14 and later

Paid once, then it is yours

A single payment, per Google account, for a lifetime licence. No in-app purchases, no subscriptions, no premium tier.

It cannot check up on your licence either — no sign-in, no activation, no phoning home.

What you are paying for

Paying directly is what keeps it honest. Nobody else is funding it, so nobody else has to be served.

• We will never add a third-party SDK
• We will never add telemetry or analytics
• We will never add advertising
• We will never invade your privacy, in any way
• We will keep it intentionally simple

Turning it on

Open the app and tap to make Seismor Phone your dialer, then tap again to let it screen your calls. Android grants the two separately: the first hands it the keypad and the call screen, the second is what turns a stranger away.

https://seismor.com/privacy-phone.html

Questions: [e-mail]

Seismor (Pty) Ltd, South Africa.