Privacy-first productivity apps

Simple Tools.Powerful Results.

Cosmos One builds practical AI tools for secure document scanning, writing assistance, and private on-device chat, with useful automation that stays focused on everyday work.

Save Time, Reduce Cost & Respect Privacy

Practical AI tools for scanning and finding documents, improving writing in place, and getting useful AI help on your own device.

Save time

Focused, single-purpose tools that clear the repetitive work that quietly consumes your day.

Reduce cost

Simple, affordable apps instead of another expensive, complicated system.

Respect privacy

Local-first where it matters, with clear controls and data that stays yours.

Cosmos Scanner

Cosmos Scanner

Android

Securely scan and organise all your sensitive documents with military-grade encryption.

  • Your documents never leave your deviceEverything is encrypted with AES-256 and stored locally. No cloud uploads, no corporate servers, no risk of a data breach - your medical records and personal files stay yours.
  • Find any document in secondsOCR text extraction and smart metadata search let you instantly find a referral, receipt, or test result by doctor name, date, or facility. No more scrolling through your camera roll.
  • Fraction of the price, zero ads, zero trackingMost scanner apps charge a premium monthly fee and upload your data to their cloud. Cosmos Scanner gives you unlimited scans at a fraction of the cost with no ads and no analytics - just privacy.
Cosmos Calendar

Cosmos Calendar

Android

Cosmos Calendar is an AI-powered calendar assistant that lets you manage your schedule through natural conversation.

  • Chat to scheduleCreate, update, and delete calendar events by simply typing in natural language. No forms, no friction.
  • Paste any message, doneForward a clinic text, email, or appointment confirmation and the AI extracts the event details automatically.
  • Synced with Google CalendarYour events stay in sync with Google Calendar so everything is always up to date across all your devices.
LumenWrite

LumenWrite

Chrome Extension

AI-powered writing assistant for grammar, clarity, and translation.

  • One click, right where you typeA floating button appears on any text field. Click it to fix, improve, or translate your text without leaving the page.
  • No more copy-paste to ChatGPTGrammar correction, tone improvement, and translation into 10+ languages happen inline, saving you the back-and-forth with separate AI tools.
  • Review before you sendEvery rewrite shows in a preview popup so you stay in control. Edit the result, copy it, or dismiss it - nothing changes without your approval.
Cosmos Chat

Cosmos Chat

Android

Your private AI companion - 12+ unique personas, voice chat, and zero cloud dependency. Chat with a Study Buddy, Code Helper, Fitness Coach, or create your own. Runs entirely on your phone.

  • AI personas with personality, not just a chatbotChoose from 12 built-in characters - a creative writer, a stoic philosopher, a language tutor, even a dad-joke machine - each with distinct personality, greeting, and visual theme. Create your own custom personas with full control over behaviour, tone, and appearance. Every conversation feels purposeful because each persona is optimised for a specific kind of help.
  • 100% on-device processing, zero data leaves your phoneDownload the AI model once, then everything runs loca - no internet, no API keys, no cloud calls, no tracking. Your conversations are stored in your phone's private storage and never transmitted anywhere. Unlike cloud-based AI apps, there's nothing to leak, no servers to go down, and no subscription that stops working when you cancel.
  • Voice and text chat in multiple languages, no subscription requiredSpeak or type in English, Chinese, Korean, or Japanese with on-device speech recognition that works offline. The app is free with optional one-time ad removal - no recurring fees, no token limits, no usage caps. Your AI assistant is always available, even in airplane mode.
Cosmos Kids

Cosmos Kids

Android

Cosmos Kids helps parents keep bedtime calm on a child's Android tablet with a parent PIN, bedtime schedule, and morning unlock. At bedtime, it shows a parent PIN wall, can keep approved apps available, and restores normal use in the morning. Everything stays on the tablet, with no account or cloud control required.

  • Bedtime routines that holdSet the nightly bedtime window once, and Cosmos Kids helps bring the tablet back to the parent PIN wall when bedtime starts, after unlocks, app switches, and restarts. Parents can still approve selected bedtime apps, so essentials stay available without opening up the whole tablet.
  • Flexible when real life happensParents can skip bedtime for tonight, set a one-night bedtime window, grant a short pass, or unlock the current bedtime until morning without changing the normal routine. Kids can ask for more time locally, but a parent PIN is always required before extra access is granted.
  • Privacy-minded by designCosmos Kids focuses on bedtime access control, not surveillance. There is no location tracking, social or text monitoring, content reading, account sign-in, or cloud sync, and the local bedtime history only records practical bedtime events parents can review.
Cosmos Focus

Cosmos Focus

Android

Cosmos Focus is a simple Android focus timer with session tracking and calming soundscapes for work, study, creativity, relaxation and sleep. Start a 10, 30 or 60 minute session, choose the ambience that fits your task, and see how many focused minutes you complete today.

  • Start focusing quicklyPick a 10, 30 or 60 minute preset, set a custom duration from 5 to 180 minutes, then start, pause, resume or reset with one tap. Cosmos Focus keeps today's completed sessions and minutes visible so progress is easy to see.
  • Soundscapes for every modeChoose from Deep Work, Study, Creative, Energy, Relax, Super Focus and Sleep categories. The library includes bundled ambience, generated noise, optional downloadable clips and layered sound combinations for different kinds of focus.
  • Private by defaultCosmos Focus does not require an account and does not include ads, analytics or a backend for timer data. Sessions, preferences, downloaded clips and diagnostics stay on your device unless you choose to export diagnostics or download optional audio from trusted hosts.
Oli

Oli

Android

Oli is a live conversation interpreter powered by Gemini Live Translate. Speak naturally while the other person is still talking, see translated text appear in real time, and hear translated speech through earbuds without waiting for strict turn-by-turn translation.

  • Real live conversation translationOli translates while speech is still happening, so conversations can keep flowing naturally.
  • Powered by Gemini Live TranslateOnline AI translation provides live transcripts, translated text, and translated audio for supported languages.
  • No ads, subscription-based accessOli is built for focused interpreting with Google Play subscriptions and no advertising.

Our Mission

We believe technology should empower, not complicate. At Cosmos One, we build tools that respect your privacy while helping you stay organised and productive.

Every app we create is designed with one goal: to make your digital life simpler. From scanning documents to perfecting your writing, we focus on what matters most - you.

Simple tools. Powerful results. Your privacy, always.