1
Built around who they are
Schooling, reading level and the language spoken at home choose the right form of each task.
Only one in four people with dementia is ever diagnosed.
A cognitive assessment built for the person in front of you.
Alzheimer's Disease International, World Alzheimer Report 2021
Zero Dementia
← Previous taskDoctor07 / 16
1Draw a clock
Draw a clock. Put in all the numbers. Set the hands to twenty-five past nine.
Clear drawing
Finish clock
9 areas · 16 core tasks
Below 80% in an area, it adds a task there.
0%
Orientation0%
Attention0%
Episodic memory0%
Language0%
Visuospatial0%
Executive0%
Abstraction0%
Semantic access0%
Social cognitionVoice + eye AI engine
In developmentPauses, pitch, jitter, shimmer. Saccades and reaction time.
The problem
57 million
people live with dementia worldwide
WHO 2023
75 in 100
are never diagnosed
Alzheimer's Disease International 2021
3.5 years
from the first signs to an answer
Kusoro et al. 2025
Each dot is one in a hundred
Up to 9 in 10 go undiagnosed in countries like India.
Trials cannot find the right patients.
New treatments work only when the disease is caught early.
138
drugs in Alzheimer's trials
182
active trials
99 in 100
people who could join a trial never do
Cummings et al., Alzheimer's & Dementia: TRCI 2025 · USC Schaeffer Center · FDA approvals 2023, 2024
Only 2 drugs that slow the disease have full approval, and they work only in the early stage.
Lecanemab · 2023Donanemab · 2024
One test for everyone, or one built around each person.
Paper tests today
- Same test for everyone
- Fixed order
- Scored by hand
- Safety checked later
- Paper files
Zero Dementia
- Adapts to schooling, reading and language
- Adds tasks where a closer look is needed
- Clear rules that show their working
- Stroke, delirium and crisis checked first
- One report, encrypted on the tablet
How it works
One visit, start to report.
1
Built around who they are
Schooling, reading level and the language spoken at home choose the right form of each task.
2
Safety checks before task one
Stroke (FAST), delirium (4AT) and crisis (C-SSRS) are checked before the assessment starts.
3
Scored by clear rules
Every answer shows its working. A missing answer is never counted as wrong. The clinician reviews every score.
4
One report, PDF and referral letter
Results by area of thinking, a printable PDF, and a referral letter for the receiving service.
5
Records stay on the tablet
Answers and notes are encrypted on the device. Voice or eye recordings only with their own consent.
AI engine
Signals we cannot hear or see.
Alongside the full assessment, we are building a voice and eye AI engine.
Voice
One minute of speech
Voiced speech: tracking pitch
- Waiting for the next feature…
- Waiting for the next feature…
- Waiting for the next feature…
Example values. A clinician interprets results; the voice engine is in development.
PausesPitchJitterShimmer+ patent-pending markers
Eyes
Front camera: look at it, then look the other way
SaccadeAnti-saccadeAttentionReaction time
Goal
Early signs of mild cognitive impairment, from one minute of voice.
Speech and eye-movement research: Eyigoz et al., EClinicalMedicine 2020 · eye-movement meta-analysis 2023
Products
One engine. Four ways to use it.
Built by engineers. Guided by clinicians.
Clinical team
Meet the team →
Dr. Abdul Qavi
RMLIMS · Neurology
Dr. Amit Keshri
SGPGIMS · Head & Neck
Dr. Vimal Kumar Paliwal
SGPGIMS · Neurology
Dr. Sanyam Mahajan
SGPGIMS
Dr. Vibhor Upadhyay
Apollomedics · Neurology
Dr. Anamika Srivastava
Apollomedics · Clinical Psychology
Dr. Sharmila Ashok
VIT Vellore · Technical Advisor
Backed byMeitY, Government of IndiaIntegral Startups Foundation · ISF-CIEDNVIDIA · compute partner
Questions
What people ask us first.
Short answers to the most searched questions about memory, MCI and dementia.
Memory loss that affects daily life, trouble planning or handling money, confusion about time or place, word-finding problems, misplacing things, poor judgement, withdrawing from activities and mood changes. One slip is not dementia; signs that build up over months are worth a doctor's check.
MCI is a noticeable drop in memory or thinking that is more than normal ageing, while the person still manages daily life. It is not dementia. Some people stay stable or improve, others progress, so regular cognitive assessment with a doctor matters.
Yes. Online memory and cognitive tests can track memory, attention and reaction time over time, but they cannot diagnose dementia. Zero Dementia's ZD Screening is a short check-in in English, Hindi or Hinglish that you can repeat and share with your doctor.
Clinicians commonly use the MoCA, MMSE and Mini-Cog. The MoCA is more sensitive to MCI. ZD Assessment covers 9 areas of thinking with 16 tasks, adapts to schooling and language, and the clinician reviews every score.
Hospitals, clinics and memory clinics that need a cognitive assessment tool; pharma and research teams finding MCI participants; insurers, employers and telehealth platforms adding brain health; and every adult from 18 up who wants to track their cognitive health.
No. Zero Dementia gives a structured, scored record of memory and thinking for a clinician to review. A doctor makes any diagnosis. Safety checks for stroke, delirium and crisis run before any task.
Pilots
Pilots planned in Lucknow.
Next phase, with leading hospitals and care homes.
10+
old age homes