Keep important numbers private and still know exactly who is calling
CallVault is a personal contact manager that works separately from your phone's built-in contacts. It gives you a hidden list of people you care about and shows useful popup cards when calls happen, without touching your regular phone book.
A second contact list that stays truly yours
CallVault keeps private, business, temporary, and sensitive numbers in a separate space while still helping you react quickly when calls happen.
No Syncing
Your contacts never leak to Google, iCloud, or any other cloud contact service.
Useful Alerts
Popup cards appear while ringing, mid-call, and after a call ends when that context helps you.
No Phonebook Clutter
Keep temporary and private numbers out of the default contacts app without losing access to them.
Encrypted Local Storage
Everything stays on-device in an encrypted app database with no ads and no tracking.
Core features
The app combines a private contact book, call-aware popups, fast contact actions, and privacy-first local storage in one focused mobile experience.
Private Contact Book
Add contacts with a name, phone number, and optional notes in a list that never mixes with system contacts.
Duplicate Protection
The same number cannot be saved twice, so your vault stays clean and dependable.
50+ Country Support
Set a default country code and type local numbers naturally across Egypt, USA, UK, UAE, Saudi Arabia, and more.
Call History (Recents)
Browse a clean timeline of incoming and outgoing calls related to your CallVault contacts.
Favorites
Pin important people to the top of the list so your most important contacts stay one tap away.
Notes and One-Tap Actions
Attach private notes and jump straight to Call, WhatsApp, Edit, or Delete from the contact detail page.
Call popup highlights
- Works while the phone rings, during outgoing calls, and after the call ends
- Known CallVault contacts show saved names with a simple dismiss action
- Unknown numbers can be saved immediately from the popup
- Post-call cards can offer Call Back, Save Contact, and auto-dismiss behavior
Extra app behavior
- Edit or delete contacts at any time
- Dark mode and light mode are available in Settings
- The popup adapts to the selected theme automatically
- Unknown numbers can open a save form with the number already pre-filled
Smart call popup behavior
The popup changes based on where the number is known from, so you only see it when it is useful.
CallVault match
A green card appears with the contact's name whenever a saved private contact calls or is called.
Phonebook match
No popup appears if the number is already in your phone contacts because you already know them.
Unknown mid-call
The popup shows the number and gives you Save Contact or Dismiss right away.
Unknown post-call
After the call ends, you can Call Back, Save Contact, or dismiss the card with the number pre-filled.
How CallVault decides what to show
A quiet background service keeps the experience focused and avoids bothering you with unnecessary alerts.
Check CallVault first
When a call event starts, the app checks whether the number is already saved in your private list.
- Helps during ringing
- Helps during outgoing calls
- Helps after the call ends
Check the phonebook
If the number is already in the system contacts, CallVault skips the popup entirely.
- Reduces interruption
- Keeps the experience useful
- Uses contact access only for this check
Handle the unknown number
If the number is unknown in both places, CallVault shows the orange card so you can decide what to do.
- Save it immediately
- Call back instantly
- Dismiss if it is not important
Privacy first, with clear permissions
The app stays local, avoids cloud exposure, and explains exactly why each permission exists.
No cloud sync, no system contact mixing, no ads, and no tracking.
Privacy Promise
Everything stays on-deviceData is stored locally in an encrypted app database built for privacy-conscious users.
Local Storage
Separate from the phone's built-in contactsThe popup can still work when the screen is off and even when the app is fully closed.
Background Awareness
Quiet service, useful timingWhat's coming next
CallVault is actively growing. These features are planned for upcoming releases — designed around the same privacy-first approach.
Encrypted Cloud Backup
Back up your private vault to an encrypted cloud store so your contacts survive device changes without ever being readable by the server.
Local Backup & Restore
Export your vault as an encrypted file and restore it anytime — no cloud required. Full control stays with you.
Contact Sync Across Devices
Keep your private vault in sync across multiple Android devices using end-to-end encrypted sync — no plaintext ever leaves the device.
Import from Phonebook
Selectively move contacts from your system phonebook into the private vault with a few taps, then remove them from the shared contacts list.
Biometric App Lock
Protect access to CallVault with fingerprint or face unlock so the vault stays closed even if someone picks up your phone.
Groups & Labels
Organize your private contacts into custom groups — family, work, temporary — and filter or search by label in seconds.
Feature priorities may shift based on user feedback. The privacy-first model applies to every feature on the roadmap.
Developer info
CallVault is an independent product built with a focus on on-device privacy and practical call awareness for everyday use.
CallVault keeps the right people close without exposing your full contact world
Version 1.0.0 brings together a private contact book, smart call popups, favorites, recents, private notes, WhatsApp shortcuts, dark mode, and country-aware number handling in one privacy-first app.