Keep SIM Alive

about

description

Keep SIM Alive sends an SMS on the schedule you define so your prepaid, roaming, or backup SIM card is never deactivated for inactivity. **How it works** For each SIM on the device you set a recipient, a message, and a schedule for when the message goes out. Each keep-alive is a regular SMS: your carrier may charge for it as per your plan. **Features** - Dual-SIM device support - Fixed send time or a random window - Off-schedule manual send - Send history with per-message outcomes - Automatic retries if network is down or the SIM is removed - Live SIM status to clearly identify the SIM - Schedule per SIM card and not per slot, so the schedule follows the SIM - Optional sticky notification while keep-alive is on - Survives reboots and app updates **Privacy** The app has no internet permission and makes no network calls: keep-alive messages are sent directly over the cellular network and all data stays on your device. No advertising, no tracking, no analytics. **Permissions** - Send SMS — the keep-alive message itself - Read phone state — to properly link the schedule to a certain SIM card - Show notifications — recommended for sticky notification - Boot completed — to re-arm the schedule after a reboot - Ignore battery optimizations — optional but recommended, for reliable wake-ups - Schedule exact alarms (Android 12+) — optional and experimental, for wake-ups despite aggressive battery optimizations; recommended on devices known to kill background apps. On Android 12-14 you grant it via a separate Alarms & reminders toggle, and on Android 15+ the battery exemption above grants it automatically

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-10-18T09:21:16.615219+00:00

last event

2026-09-22 03:40 UTC

install

zapstore.dev or any Zapstore-compatible client

topics

#phone & sms #system

source & build

repository

https://github.com/kotowski-app/keepsimalive

arch flags

android-arm64-v8a android-armeabi-v7a android-x86 android-x86_64

manifest

missing

releases (kind 30063)

1 release indexed; latest 1.0.0.

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.0.0 — keepsimalive-v1.0.0.apk

sha256

bc601a2989ce9707dac3a231edc642c8138873049aee83c61915bf6cc0089209

size

2.5 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

1000000

apk cert sha256

c94aefa837092112c03020a464ff837bdca5282141bc1d013557855a3ab28532

download

keepsimalive-v1.0.0.apk

Showing the newest 1 asset descriptor; the full set is in /api/apps/78ce6faa…