APPEIRON vs TalkOnce

APPEIRON is a privacy-first encrypted messenger — security you can see. Chat and call with end-to-end encryption designed so only you and your contacts can read the content. No phone number or email account is required: your identity is created locally on your device. KEY FEATURES • Encrypted messaging — text, photos, voice, and video • Voice and video calls with WebRTC • Quantum Vault — encrypted local storage (Pro+) • Security Health — entropy and crypto status you can check • Proof-of-Read seals and VoiceGuard caller verification • Dead Man’s Switch — basics on Pro+; encrypted backup options on higher plans • Mesh mode for nearby communication when internet is limited (Pro+) • Optional group chats and team features on higher plans PLANS • Base — one-time purchase: chats, contacts, and 1:1 calls • Pro+ — one-time purchase: Vault, Mesh, and advanced privacy tools • Guardian — one-time purchase: guardian protection • Team — subscription with a 7-day free trial Purchases are handled through the App Store. The Team subscription can be canceled in Apple ID settings. Privacy Policy: https://appeiron.app/privacy More: https://appeiron.app/

TalkOnce — the message no one else can read. Not even us. TalkOnce is a private messenger built so that we cannot read your messages. Your messages, calls, and media are end-to-end encrypted with post-quantum cryptography — sealed on your device, opened only on your recipient's. We hold no keys. No number. No name. Sign up with nothing — no phone number, no email, no real name. There's no account profile to leak, subpoena, or sell. Built for tomorrow's attacker. TalkOnce uses hybrid classical + post-quantum encryption on every message, call, and file — so traffic recorded today can't be broken by a future quantum computer. Ephemeral by design. Delivered messages are erased from our servers the instant they reach you. Anything undelivered vanishes within 30 days. Disappearing-message options put conversations on a timer. No tracking, ever. No ad networks, no analytics SDKs, no trackers — anywhere in the app. A full messenger. • 1:1 and group chats • Encrypted voice & video calls • Stories that vanish in 24 hours • Zero-knowledge encrypted backup, unlocked only by a code you hold • Three privacy levels: Standard, Shielded, and Blackout (routes over Tor with cover traffic) Radical honesty. We tell you the exact boundary of what our servers can and can't see, in plain language, in our Privacy Policy. Say it once. Trust no server with the rest. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://talkonce.app/privacy