Executive OS vs Cairn

Executive OS is a private AI Chief of Staff that runs sealed inside your phone. No cloud. No analytics. No remote backend. Every founder, CEO, and high-net-worth operator faces the same cognitive load: too many decisions, too little structured reasoning, too much data leaking into other people's servers. Executive OS solves this by putting your private operating system on a single device, encrypted with AES-GCM 256, sealed by your biometric. CHOOSE YOUR TERM Monthly $19.99 · Yearly $49.99 · Lifetime $99.99 one-time. Everyone who purchased Executive OS while it was a paid app keeps permanent access at no cost — forever. A FOUNDER SERIES, NUMBERED The first one thousand activations are issued sequential serial numbers. DAILY AI EXECUTIVE BRIEFING A private Chief of Staff distills your priorities each morning. Listen in a luxury synthesized voice. WEALTH OPERATING SYSTEM Track net worth across real estate, cash, investments, equity, vehicles — in six currencies. AI Wealth Analyst flags concentration and liquidity gaps. CALIBRATION — JUDGMENT YOU CAN MEASURE State your own confidence on every call. Months later, record what actually happened. Executive OS scores you with a Brier score, plots your calibration curve, and splits it by domain — so you learn where your judgment holds and where it does not. Before you commit to a number, it shows you what happened the last times you felt exactly this certain. EXECUTIVE SEARCH One field across every decision, task, retrospective, holding and playbook. Entirely on device. Vault secrets are never indexed. DECISION ENGINE WITH COACH MODE Strategic questions answered with structured reasoning, risk-reward framing, confidence scoring. Coach Mode runs a Socratic interview before you act. Fifteen pre-built decision archetypes. CEO PLAYBOOKS Thirteen hand-written essays — first 100 days, M&A negotiation, down round, firing senior leader, board management, founder burnout, calibration, Series B prep, PR crisis. WEEKLY RETROSPECTIVE Friday evening five-question ritual. Compounds into year-end calibration. SECURE VAULT Credentials, API keys, contracts. AES-GCM 256. Screenshot detection. Time-locked entries. FOUNDER TOOLS Cap table, runway with default-alive check, OKR tracker, 1:1 prep, board prep, AI investor updates. VOICE JOURNAL & DOCUMENT OCR Record voice memos, on-device speech recognition, photo OCR into the vault. On-device Apple Intelligence summarization — no API key needed. STANDBY MODE DASHBOARD Bedside night display with today's aphorism and tomorrow's first priority. INTERACTIVE LOCK SCREEN WIDGETS Tap to record a decision from the lock screen. YEAR-END EXECUTIVE REPORT Book-format typeset PDF every December: net worth, allocation, decision calibration, AI commentary. PARANOIA-GRADE SECURITY Biometric-bound master key. Self-destruct. Dead-man's switch. Decoy profiles. Tamper-evident audit log. Excluded from iCloud. PRIVATE BY ENGINEERING We collect zero data. Anthropic integration runs against your own API key. On-device Apple Intelligence needs no key at all. For the cognitive demands of leadership. TERMS Executive OS Pro — monthly ($19.99), yearly ($49.99), or lifetime ($99.99, one-time). Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your Apple Account is charged for renewal within 24 hours before the period ends. Manage or cancel subscriptions in Account Settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://birkanaksoy.github.io/executiveos-site/privacy.html

Cairn counts down to the days you're waiting for, and counts up from the days you don't want to forget. Give it a date. It answers in days — 124 days to go, or 1,024 days since. Everything else gets out of the way. COUNTDOWN AND COUNT-UP, ONE MODEL • Days to go for anything ahead: a holiday, a trip, an exam, a due date • Days since anything behind: an anniversary, a baby's birth, the day you quit • Turn on minute precision when the hour matters — "3 days 4 hours", with seconds only in the final hour • Repeat yearly, monthly, weekly, every N days, or by the lunar calendar • Every event carries its own time zone, so flying across the world never shifts the number • Count only working days when a countdown is about business days • A date calculator for the days between two dates, or a date N days away — save the answer as an event • Pick up dates from a screenshot, a photo or a bit of text, and start a new event already filled in SEE WHERE IT STANDS • A countdown bar reads like a battery gauge: solid is what's left, full to empty • A count-up grid fills one square at a time, a day at a time • Milestones at 100, 365, 520, 1,000 and 1,314 days, marked right on the track • Ring, milestone track or heat grid — pick one per event, or just keep the number • A year view lays out all twelve months at once, so you can see which one is crowded; a month view lays them out day by day • Yearly events show which anniversary it is, and the day a countdown reaches zero gets a small celebration REMINDERS THAT ARRIVE ON TIME • Several reminders per event: days, weeks or months ahead, at the hour you choose • A daily digest each morning for what's today and what's this week • Live Activity and Dynamic Island for the last 24 hours • Time-sensitive delivery for the dates that shouldn't wait behind a Focus EVERYWHERE YOU LOOK • Home Screen widgets in small, medium and large: one event, a list, or a chart • Lock Screen widgets — inline, circular and rectangular — each pointed at the event you choose • An Apple Watch app and complications: circular, rectangular, inline and corner • A Control Center control for a new countdown in one tap • Ask Siri how long until anything, or find an event right from Spotlight • Share an event with family or friends: change the date and it changes for them too YOURS, AND ONLY YOURS • No account. Nothing to sign up for. • Syncs across iPhone, iPad and Mac through your own iCloud, and mirrors to Apple Watch from your iPhone • Import dates from Calendar and birthdays from Contacts — read only, never written back • Export everything to a single JSON file and import it back whenever you like; local snapshots and Recently Deleted bring back what you removed by mistake • App Lock asks for Face ID, Touch ID or your passcode when you come back • Cover photos with automatic tinting, six muted themes, categories, pinning, archiving and a share card • English, Simplified and Traditional Chinese, Japanese, Korean, German, Spanish, Brazilian Portuguese, French, Italian, Arabic, Persian, Hebrew and Thai — dates and month names included Cairn is free to download and keep up to 3 events. A one-time in-app purchase unlocks unlimited events. Previous users keep full access permanently; restore with the same Apple Account. No subscription, no ads, no tracking. A cairn is the pile of stones a trail keeps stacking to mark the way — one for every stretch you have walked.