For patients
Stop reconstructing your history from memory.
When you live with a chronic condition, the important things happen between appointments. Lucas captures them for you, so you arrive at each visit with the full history in order.
What changes day to day
Tools built for the good days and, above all, for the bad ones.
One minute a day
Logging is designed to be quick, and doable from bed if it has to be. Simple scales, no endless forms.
Nothing gets forgotten
Symptoms, side effects, infections, regimen changes and questions for your doctor are captured as they happen.
Patterns you can see
After a few weeks trends emerge: what precedes a flare, how treatment is responding, which days are worse.
Appointments that go further
A one-page summary of what matters since the last visit, so consultation time goes on decisions.
Everything in one place
Reports, lab results and images from different providers in a single timeline.
You decide who sees it
Share with your specialist, your GP, or nobody. Access is granted and revoked whenever you want.
How you use it
No learning curve. Set it up once and it keeps itself going.
- 1
Set up your profile
Tell Lucas your diagnosis, current treatments and what you want to track. The log adapts to your condition.
- 2
Log at your own pace
An optional daily reminder. If you miss a day, it doesn't matter — the history still builds.
- 3
Add your reports
Photograph or attach lab results and reports. They are filed by date and linked to the relevant episode.
- 4
Prepare for the appointment
Before each visit, generate the summary and add your questions. Share it or bring it printed.
Built for conditions that need follow-up
Lucas was designed around the needs of immunodeficiency and chronic conditions that flare.
- Primary immunodeficiencies
- Secondary immunodeficiencies
- Autoimmune conditions
- Inflammatory bowel disease
- Arthritis and rheumatic conditions
- Severe asthma and chronic respiratory disease
- Rare diseases followed across multiple centers
- Any chronic condition on continuous treatment
Condition not on the list? If it needs ongoing follow-up, Lucas still works for you.
Patient questions
How much does it cost?
Nothing. Patient use is free and advertising-free.
Does it work offline?
Yes. You can log without a connection and everything syncs once you're back online.
Can a family member or carer use it on my behalf?
Yes. You can authorize someone you trust to log on your behalf or view your record, with the permissions you set.
What if I stop using it?
Your information is still yours. You can download all of it at any point, or ask us to delete it.
Your next appointment starts today
The sooner you start logging, the more complete the history you bring.