Your AI Operating System

Think less.
Focus more.
Live better.

tesi is the operating system for your life — tasks, calendar, habits, journal, deep work, and an AI assistant that knows exactly what's going on in your day.

3 tasks done
Today · 2 remaining
AI Brief ready
4 updates · just now
9:41
Good morning
Damilare
DK
MY
✦ Ask Tesi
Tesi
YOUR AI ASSISTANT · JUST NOW
4 UPDATES

You have 3 tasks left today and Design System Review in 42 min. See all 4 updates →

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Active Tasks
4
Done Today
1
Habits
1/4
TODAY'S FOCUS
Do Mockup sigma
09:00 → 10:30 · 90 MIN BLOCK
00:00
tap to start
MEETINGS · TODAYView all →
In 42m
Design System Review
10:30 AM · 45m
Investor Call
2:00 PM · 60m
Today
Calendar
Routines
Journal
Profile
tesi
Dashboard
My Assistant AI
Deep Work
Tasks
Projects
Calendar
Routines
Journal
Private Notes
Good evening, Damilare.
Tuesday, June 30
TODAY View all
Do Mockup sigma
medium
build UI
tesi
medium
Complete my new training
medium
Write API design doc
high
Active Tasks
4
Done Today
1
Habits
1/4
HABITS TODAY View all
Exercise
elevate
Bible
Gym
Assistant that knows your day
Reads your tasks, habits, calendar, and journal before every response.
Everything in one place
Tasks, projects, calendar, habits, journal — not five different apps.
Built-in focus timer
Schedule deep work blocks and protect your most important hours.
Private by design
Biometric-locked private notes. No ads, no tracking, no exceptions.
Everything inside

One place.
Your whole day.

Stop switching between five apps. tesi holds all the pieces together and understands how they connect.

Deep Work

Focus time,
protected.

Block focus sessions on your calendar. One tap starts a countdown and locks in your intention. No distractions, no decisions — just the work.

Schedule deep work blocks with a start time and duration
Built-in countdown timer — see exactly how much time is left
Log distractions and review them after each session
Track total focused hours over time
Deep Work
● Active
47:22
Build tesi UI — 90 min session
Write API design doc
~45 min
Daily Brief
Every morning, tesi reads your tasks, calendar, habits, and journal to tell you what matters today. Your real data, not generic tips.
Assistant
Ask anything — “what should I focus on?” or “summarise my week.” It knows your actual data and answers from it, not the internet.
Tasks
Capture tasks fast, set priorities, estimate time. Your backlog stays calm and organised even when life doesn't.
Projects
Group tasks under goals, track how much is done, see what's left. The bigger picture, always visible.
Calendar
30-minute time-grid. Events and tasks as colour-coded blocks. Add tasks directly from your calendar without switching screens.
Routines & Habits
Daily habits with streaks and one-tap logging. Log past dates. See your week without guilt or judgment.
Journal
Morning reflection, evening check-in, or a free note. Structured prompts when you need them, blank page when you don't. Your assistant reads it.
Private Notes
A biometric-locked space for thoughts you don't want anywhere else. Face ID protected. No cloud sync. Yours alone.
How it works

Set up once.
Use it every day.

01
Create your account
Sign up in under a minute. No credit card needed. Your data lives in your own space — not shared, not sold, not used to train anything.
2 minutes
02
Set up your space
Add the tasks already on your plate, create your daily habits, and block your first deep work session. tesi guides you through it — nothing feels heavy.
5 minutes
03
Open tesi every morning
Your daily brief tells you what matters. Protect focus time, log habits, write in your journal, and ask your assistant anything — all without leaving one app.
Your new daily habit
Use Cases

tesi works for every kind of mind.

Whether you struggle with focus or just have too much to do — tesi adapts to the life you're actually living.

For focus & attention

Built for the way your
brain actually works.

tesi removes the friction between thinking and doing. No setup, no willpower, no shame spiral.

Quick capture — thoughts recorded before they disappear
Micro-tasks — anything overwhelming broken into 5-minute steps
Gentle streaks — habit accountability without the guilt trips
AI morning brief — know exactly what to do the moment you wake up
Start free — no card needed
tesi — Today's Focus
AI BRIEF✦ AI
3 priorities for today
Tesi has reviewed your week
FOCUS BLOCK● Live
Deep Work — Design
25 min · Pomodoro active
TASKS
Read one chapterlearning
Do Mockup sigmawork
Evening walkhabit
Available on iOS & Android

Your life.
In your pocket.

Dashboard, AI assistant, focus timer, habits, journal — everything in one place, always with you.

AI daily brief, every morning
Reads your tasks, habits, and calendar before telling you what actually matters today.
Focus timer with ambient sound
Pomodoro blocks, rain sounds, distraction-free. Deep work without the friction.
Habits, streaks & weekly review
One-tap habit logging, streak tracking, and an AI weekly summary every Sunday.
22:05
← BackFOCUS MODE
CURRENT TASK
Do Mockup sigma
25:00Pomodoro · 25 min
AMBIENT SOUND
Rain
Forest
Cafe
White Noise
End Session
Pricing

Simple, honest pricing.

No surprise charges. No feature paywalls that make you upgrade every five minutes.

Free
$0 / forever
Get started and see if tesi fits your life.
Tasks, projects, and calendar
Habits and routines
Journal
Private notes (biometric lock)
10 daily briefs per month
10 assistant messages per month
Get started free
Pro Annual
$120 / year
Two months free — save $24
Same as Pro, billed once a year.
Everything in Pro
Billed annually — $10/month effective
Early access to new features
Priority support
Get Pro Annual

Ready to get started?

Create your account in under a minute. No credit card required.