Functions · Transformations1 / 10
Move the bowl
Slide the parabola until its vertex sits on the target (2, −1). What has to change in y = (x − h)² + k?
◎ Vertex → (2, −1)
Drag the vertex in any direction.
Vertex(-2, 2)
(-2, 2) · y = (x − -2)² + (2)
75.2%
on LongMemEval, the academic benchmark for long-term AI memory
50+
interactive simulations across physics, chemistry, biology and math
70,000+
textbook-level questions, scaling to two million
700+
students tutored across seven countries before launch
Meet your tutor
Ask Euler. Watch the graph appear as he explains.
A real moment from the Mathematics Room, replayed here: the tutor talks, then conjures a live, grabbable graph mid-sentence, the way Dexico answers every question. Pick one and see for yourself.
Leonhard EulerMathematics · The Master of Analysis
Try a question
Drag, zoom, and spin the graph. It's the real applet, not a picture.
Meet your physics tutor
Ask Newton. Play with the physics as he explains.
The tutor who hosts the Physics Room, here on the page. Pick a phenomenon and reach into it: fields, waves, heat, light and motion, simulated live with interactive experiments you can control.
Isaac NewtonPhysics · The Laws of Motion
Pick a phenomenon
Drag the sliders and tap the canvas. Every demo is live, not a picture.
Meet your chemistry tutor
Ask Curie. Handle the matter as she explains.
The tutor who hosts the Chemistry Room, here on the page. Pick a question and reach into the matter: gases, light, heat, bonds and atoms, simulated live with the same engines that run inside Dexico.
Madame CurieChemistry · The Nature of Matter
Pick a question
Drag the green piston, adjust the sliders, and pull the electrons yourself. Every demo is live.
The question engine
Don't take our word for it. Answer one.
Learning clicks when you try something. Explore 40 hands-on challenges across mathematics, physics, chemistry and biology. Tune an experiment, build a sequence, or investigate a diagram — then discover why it works.
40 small discoveries. Four subjects. Progress lasts while this page is open.
Fortunate Recall
A teacher that never forgets.
Fortunate Recall is Dexico's long-term memory architecture. It remembers what you've studied, so every lesson picks up where the last one left off. Every fact is sorted by how it changes over time, and each note fades on its own schedule, so old information is replaced by new. The paper is publicly available on arXiv.
Read the paper on arXivDeveloped with Dr. Eray Tüzün, Bilkent CS, lead research advisor.
Day 0
Day 0
Preparing for IB Physics HL
Study goal · half-life 19 days
Finished projectile motion
Recent topic · half-life 8 days
Lab report due Thursday
Deadline · half-life 4 days
Differential decay
Each fact fades at its own pace
A study goal lasts for weeks. A lab report deadline fades in days.
Remembers past lessons
75.2%
on LongMemEval-S, the standard test researchers use to measure long-term AI memory.
Dexico75.2%
Keeps facts up to date
76.9%
of LifecycleBench checks passed. Mem0, a popular AI memory system, passes 61%.
Dexico76.9%
Mem061%
Makes up fewer answers
2×
fewer invented answers than Mem0: 22.4% of answers vs 45.1%.
Dexico22.4%
Mem045.1%
Lower is betterParents & schools
Parents stay in the loop. Classroom stays in sync.
Every evening, a study summary lands on a parent's WhatsApp: time studied, topics covered and what to review next. Homework from Google Classroom flows into Dexico's calendar on its own, so nothing slips.
WhatsApp · daily
A study summary, every evening
Parents ask Dex anything about the day, and the report comes straight from the tutor who taught it.
8:01
DDexonline
Google Classroom · automatic
Google Classroom, in sync
New assignments and changed due dates land on the right day in the student's Dexico calendar.
The Known World
A world of 137 scientists. Explore it.
Not a map of Earth. A continent where the geography is the syllabus: four lands that meet in the middle, mountains where two subjects join, and a river system you can follow from first principles to the coast. Every place is labelled twice — once with its name, once with the topic it teaches.
The Known WorldTracing the coastline…
Immersive rooms
Step into a world hosted by history's greatest minds.
Euler teaches mathematics. Newton teaches physics. Madame Curie teaches chemistry. Rosalind Franklin teaches biology. Each room is a beautifully crafted environment designed to rekindle curiosity.
MathematicsLeonhard EulerWhere symbols become the most beautiful language we have.
PhysicsIsaac NewtonGravity, motion, and the laws that govern the stars.
ChemistryMarie CurieMatter, reactions, and the glow of discovery.
BiologyRosalind FranklinLife, structure, and the discipline of looking closely.
Competitive landscape
How Dexico compares.
What a student gets from each option today.
Khanmigo
PhET
ChatGPT
Private tutor
DexicoSimulations spawned from questions
No
No
No
No
Yes
Long-term student memory
No
No
Basic
Forgets
Picks up where you left off
Parent progress reports
Dashboard
No
No
Verbal
Daily, on WhatsApp
IB / AP / IGCSE alignment
Partial
No
Generic
Yes
Yes
Refuses to just give answers
Yes
n/a
No
Varies
Yes
Price per month
$4
Free
$20
$1,500
$53
Swipe to compare
For schools
Every student practising. Every class in view.
Schools license Dexico by the seat. Teachers assign the work, see how the whole class is doing and teach it live. Add the AI tutors, and every student gets their own.
10B Physics · 28 students
Build a set
70,000 questionsIBAPIGCSESATACT
PhysicsKinematics
Kinematics
12 questions · due Wed
Q1Velocity–time graphs
Q2Free fall from 20 m
Q3Projectile from a cliff
10B Physics
0 / 28 doneAM
JL
SK
RP
EO
NT
MB
LC
DH
FA
GW
IY
KZ
OS
PV
QR
TB
UE
VN
WX
YC
ZH
BA
CG
HJ
LM
NP
RS
01 · Assign
School license
Starts at $100 / seat / year
About $550 / seat / year with the AI tutors included.
- The full library of 70,000+ questions
- Teacher and admin analytics
- Google Classroom integration
- Dedicated school support
Dexico is a practice and learning tool. It is not used for official grades, admissions or placement decisions, and teachers stay in control of any marks.
Founding Schools
Be one of our first 20 schools.
Dexico Classroom is an introductory version of the platform licence: the teacher tools, every simulation and the full question bank for your whole school, at one price for up to 200 students.
Founding Schools offer
Dexico Classroom
$500 / school / year
Billed yearly. The price stays the same for as long as your school stays subscribed.
- Every simulation, ready for the classroom screen, each with a one-page teacher guide
- The full grades 6–12 question bank, by curriculum, subject and topic
- Homework with due dates, and who has completed it
- Instant feedback on practice answers, which teachers can review and change
- Classes, progress tracking and school support
- Student rewards and the scientist collection stay on
Subscribe your school
Open until 15 December 2026
Not included: AI tutors, tutor memory and parent reports. They come with full Dexico for schools (about $550 / seat / year, see the school licence above) or with Dexico Home.
Simulations and the question bank stay free for every student. Schools pay for the teacher tools: classroom mode, teacher guides, homework and checking, class management, progress tracking and support.
Dexico is a practice and learning tool. It is not used for official grades, admissions or placement decisions, and teachers stay in control of any marks.
More than 200 students? Contact us for larger schools: info@dexico.org
Pricing
A tutor's job, at 3% of the price.
Individual
$53 / month
One student, billed monthly in USD
Simulations built from your questions
Fortunate Recall memory
Daily WhatsApp reports
Full question library
For households
Family
$93 / month
Up to two students in one household, billed monthly in USD
Everything in Individual
Unified parent portal
Centralized dashboard
Higher usage limits
Institutional
Starts at $100 / seat / year
about $550 / seat / year with AI tutors included
Assigned question sets
Class analytics
Google Classroom sync
Dedicated school support
Individual
$53 / month
One student, billed monthly in USD
Simulations built from your questions
Fortunate Recall memory
Daily WhatsApp reports
Full question library
For households
Family
$93 / month
Up to two students in one household, billed monthly in USD
Everything in Individual
Unified parent portal
Centralized dashboard
Higher usage limits
Institutional
Starts at $100 / seat / year
about $550 / seat / year with AI tutors included
Assigned question sets
Class analytics
Google Classroom sync
Dedicated school support
Get Dexico
Bring Dexico home.
Tell us a little about your family and our team will reach out on WhatsApp shortly to get your children set up.