Apeirio combines the battle-tested Signal Double Ratchet with post-quantum ML-KEM-768 (Kyber-1024). Even if state adversaries store encrypted network traffic to crack decades later with Shor's algorithm on quantum supercomputers, your messages remain mathematically sealed.

If coerced into unlocking your workstation, enter your secret Duress PIN instead of your standard password. Apeirio immediately zeroes volatile master keys from RAM and displays an innocent decoy workspace with benign mock chats and files.

Transform any encrypted chat thread or executive conference into a formatted Markdown document or Clean PDF report with one click. Ideal for archiving meeting minutes, legal briefings, and architectural decisions.

Messaging Layer Security (IETF RFC 9420) tree encryption allows teams of up to hundreds of members to converse with logarithmic O(log N) key rotation overhead, ensuring immediate forward secrecy when members join or depart.

Every registered handle includes an integrated sovereign email inbox. Receive emails from anyone worldwide (Gmail, Apple Mail, Outlook, corporate servers) without surrendering your privacy.

The instant an inbound email arrives at our SMTP ingress relay, it is parsed strictly in volatile memory and encrypted with the recipient's OpenPGP public key before any byte touches disk or database. Plaintext is never stored.

Outbound emails are cryptographically signed with DKIM and delivered via authenticated TLS relays, ensuring maximum deliverability to international corporate mailboxes without falling into spam filters.

Unlike complex third-party software that stores mailbox folders in cleartext, the native Apeirio Mail Core operates purely as a zero-knowledge forwarder. Inboxes can only be read by the client possessing the private key.

Standard WebRTC encrypts only point-to-point transport (DTLS-SRTP), forcing conference servers to decrypt all video in plaintext. Apeirio implements RFC 9605 SFrame: individual media frames are encrypted at the client, so servers route packets blindly.

Because the media server performs zero video decoding or transcode rendering, it operates with minimal CPU overhead. A single relay node comfortably supports up to 200 attendees with simulcast resolution tiers (1080p, 720p, 360p).

Record critical executive calls directly into your encrypted cloud drive. Recordings are fragmented client-side into 4MB encrypted chunks and saved to your private Merkle vault with no server access.

Share full desktops or specific application windows at 60 FPS with crystal-clear 4K resolution. Spatial stereo positioning allows natural conversation during large organizational gatherings.

Files are partitioned on your client into 4MB blocks, encrypted with AES-256-GCM, and verified via a Merkle root hash. This guarantees byte-for-byte integrity and allows instant resume for large uploads.

Content-addressable chunk hashes enable instant client-side deduplication. If you upload a file already present in your vault, it finishes in milliseconds without re-transmitting data or revealing content to the cloud.

Share files securely using URLs with cryptographic fragments (e.g. `apeirio.one/file/abc#key=xyz`). The secret decryption key stays in the client URL fragment and is never transmitted in HTTP headers to server logs.

Every user starts with a 100 GB free trial. Upgrade seamlessly to 1 TB, 2 TB, 5 TB, or 10 TB sovereign vaults with 2 months free on yearly billing. All tiers enjoy identical post-quantum encryption standards.

Type `/` anywhere to summon the power block menu: Headings (`/h1`, `/h2`, `/h3`), bullet lists, numbered lists, code blocks with syntax highlighting, tables, callout banners, block quotes, and checkboxes.

Switch effortlessly from linear document view to an infinite spatial canvas. Position notes as movable cards, connect concepts with dynamic vector arrows, and sketch visual architecture diagrams freely.

Export notes directly to high-fidelity PDF documents formatted for print and distribution, or download raw Markdown with full GitHub Flavored Markdown (GFM) compatibility. Zero server rendering needed.

Work seamlessly while disconnected from the internet. All changes are stored in IndexedDB and cryptographically synchronized using Conflict-free Replicated Data Types (CRDTs) when reconnected.

Powered by the native HyperFormula recalculation engine, Apeirio Sheets supports complex Excel formulas (VLOOKUP, INDEX/MATCH, SUMIFS, NPV), date math, financial models, and interactive visual charts.

Full-featured word processor with real-time word counting, character counters, typography formatting, find & replace, and standardized document layout templates.

Create executive presentation slide decks with sophisticated dark aesthetics, slide transitions, speaker notes, and full-screen presenter display mode.

Unlike Google Workspace and Microsoft 365, which scan document text for telemetry, behavioral analytics, and AI training models, Apeirio processes spreadsheets and documents entirely inside your browser sandbox.

All credentials pass through RFC 9106 Argon2id with memory-hard parameters and cryptographic salts. This renders brute-force attacks via GPU clusters and ASIC cracking farms mathematically intractable.

Time-based One-Time Passwords compatible with Google Authenticator, YubiKey Authenticator, and 1Password. Enforces second-factor verification on sensitive administrative actions and account logins.

Defends against credential stuffing and DDoS flood attacks. The API enforces 120 requests/min general traffic and a strict 5 requests/min on authentication routes. Exceeding thresholds triggers automatic temporary IP jail.

Hardened HTTP headers eliminate clickjacking, MIME sniffing, and framing attacks: Strict Content Security Policy (CSP), HTTP Strict Transport Security (HSTS) with 1-year preload, `X-Frame-Options: DENY`, and strict XSS disinfection.