🔔
Ring (Sound) Free
Sets the receiver's ringer to normal mode so a phone left on silent rings out loud.
✨ Features
Powerful phone care, deliberately limited power
Care4u gives trusted contacts the helpful tools to find and care for a phone — and intentionally leaves out the invasive ones.
Remote commands
Six care commands, sent by number
Every command returns an acknowledgement so the sender knows whether it worked.
📳
Vibrate Free
Switches the ringer to vibrate to locate a phone quietly.
🔕
Silent Free
Sets the ringer to silent (requires Do-Not-Disturb access) to quiet a phone remotely.
🔊
Max Ring Premium
Forces maximum ring volume regardless of current settings — find a phone in a noisy place or deep in a bag.
📍
Locate Premium
Acquires a one-time GPS fix and returns latitude, longitude, accuracy and a Google Maps link in the acknowledgement.
🔒
Lock Premium
Locks the receiver's screen via Android Device Admin. Uses force-lock only — it cannot erase data or change passwords.
Authorization & safety
Consent-first, anti-abuse by design
👨👩👧
Contacts-only authorization
Set a device to accept commands only from numbers saved in its own contacts, with no self-bypass. We recommend keeping this on.
🌍
Country-agnostic phone matching
Uses Google libphonenumber with device-region detection to match numbers across formats and countries — it works internationally.
✅
Acknowledgement round-trip
Every command returns a status/result, correlated by ID, with timeouts and automatic retries — so you see whether it worked.
Setup & reliability
Built so it actually rings when you need it
🧭
Device setup wizard
Guides you to grant DND, location, notifications, battery exemption and Device Admin — with progress and a “Fix All” flow.
🔋
Battery-optimization exemption
Helps commands arrive reliably when the phone is idle, with auto-start guidance for some brands.
🔁
Works after reboot
Re-registers itself after a restart so the phone stays reachable for commands.
⚡
Fast push delivery
High-priority silent push messages deliver commands within seconds and queue them when a phone is offline.
🔐
Biometric protection
A local biometric or device-credential prompt protects sensitive in-app actions.
📲
Phone-number OTP sign-in
No passwords — verify your number with a one-time SMS code and you're in.
Premium
Unlock advanced safety features
Core commands — Ring, Vibrate and Silent — are always free. Premium unlocks the most powerful tools, and Care4u also grants occasional free-access promotions so you can try them.
- Max Ring — force full volume regardless of silent mode.
- Locate — one-time map location of a lost phone.
- Lock — secure an unattended phone's screen.
- Contact picker & map opening included with Premium.
⭐
Free-premium promotions
Care4u grants premium access free on certain days and nightly hours, so you can experience the advanced features before deciding to upgrade. Purchases are handled securely through Google Play Billing.
Ready to care for the phones you love?
Install Care4u, set it up once, and turn any trusted contact into instant help.