Private Message Box vs ZIØN

Do you want to hide your private conversations? Worried on messages from one friend checked by others, then Private Message Box is for you. It saves messages of secret contacts behind PIN pad. Its easy to use and keeps user conversation secret. Your conversation with PSB contacts is 100% SECRET and secure. It also provides free texting between App Users. Just Sign-In with your number. Send unlimited text, photo and location details to another user. You can do conversations only with users who have enabled Free messaging. 
Full of emoji characters (300 emoji support), useful to represent emotions. Features
- Free text & Multimedia Messaging between Users
- Image/Location sharing
- Password protection: Cannot be opened by other people
- Privacy Guard Pro version feature: -No Advertise - Remove ads from the application. Pro version subscriptions Options: -Duration of the subscription is 1 Year with a charge of $4.99 every year. Buy Virtual Number: - Hide your private conversation from your personal cell phone bill. - Keep your personal phone number hidden from some contacts. - Send or receive messages from anywhere in the world. Buy Virtual Number Options: - 58.99$/year for countries like USA, Canada etc. - 102.99$/year for countries like Estonia, Latvia etc. Please note :- All subscriptions are auto renewable. Subscription will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current subscription period. You will not be able to cancel the subscription once activated. Account will be charged for renewal within 24-hours prior to the end of the current period. You can cancel your subscription any time by turning off auto-renewal in your iTunes Account Settings. You can manage your subscription in iTunes Account settings after purchase. -Find more information in our privacy policy, click on this link http://privatesmsbox.com/legal.html - For terms of use, click on this link http://privatesmsbox.com/termsofuse.html Excited to receive feedbacks or queries at: info@privatesmsbox.com

ZIØN is a peer-to-peer, end-to-end encrypted messenger built on one principle: your conversations belong to you and your contact — no accounts, no cloud, no message database. HOW YOUR MESSAGES TRAVEL • On the same network, ZIØN connects your devices directly, device to device. Nothing leaves your local network. • Across different networks, messages are carried by a minimal relay we operate that only forwards already-encrypted bytes. It is zero-knowledge by design: it cannot read your messages, your contacts, or any content — and neither can we. • Optional WAN mode (OFF by default): when you enable it, ZIØN can also open a direct device-to-device connection across the internet via UDP hole punching. Only then does the app contact public IP-discovery services (ipify, ifconfig.me, icanhazip, checkip.amazonaws) to learn its own address for NAT traversal. There are no ZIØN accounts and no cloud storage of your messages. The relay never holds anything it can decrypt. STANDARD CRYPTO, ZERO CUSTOM • Curve25519 + ECDH key exchange • Forward Secrecy with per-session ephemeral keys • Authenticated AES-256-GCM message encryption • HMAC-SHA256 handshake authentication (anti-MITM) • 30-digit Signal-style safety numbers OPERATIONAL PRIVACY • Encrypted local storage • Excluded from iCloud backup • Self-destructing messages with configurable timer • Bidirectional message deletion • One-tap Emergency Wipe • Screenshot blocking, screen-recording detection • Session keys wiped from RAM on idle • Anonymous notifications: "New message" only, no sender or content LOCALIZED IN 6 LANGUAGES English, Italiano, Español, Français, Deutsch, 日本語 HONEST DISCLOSURE ZIØN is experimental software and has not undergone formal independent cryptographic audit. For communications where compromise would cause severe harm, use audited solutions like Signal. ZIØN is designed for users who want a second private channel between trusted devices. REQUIREMENTS iPhone 13 or later. iOS 17 or later. Face ID or Touch ID recommended.