Facing illness every day —
you don't have to carry it alone.
We work toward remission for everyone in the world living with chronic illness.
Sensitive records encryptedNever shared with third partiesExport or delete anytime
Give it two weeks. Just one line a day, even if you doubt it will help.
With deep, current knowledge of your condition and our own timestamped correlation work, we find the patterns behind your bad days and your good ones, and show you what looks likely next.
Steering your condition and managing your symptoms gets a great deal easier
Three simple steps
- 1Sign in (Google or email)
- 2Record today in a few words or a photo
- 3See your reflections, suggestions and latest research
If you live with one of these
- ME/CFS (Chronic Fatigue Syndrome)
- Long COVID
- IBS
- Depression
You are welcome here even without a firm diagnosis, or when tests keep coming back normal.
Conditions we support (94+)
Check whether your condition is included. Even if it isn't listed, you can record under 'Other (free text)'—anyone can log condition, mood, meals and medication.
Neurological
- ME/CFS (Chronic Fatigue Syndrome)
- Fibromyalgia
- Migraine
- Epilepsy
- Multiple Sclerosis
- Parkinson's Disease
- ALS
- Peripheral Neuropathy
- Dysautonomia
- POTS
- Traumatic Brain Injury
- Chronic Pain
- Narcolepsy
Mental health
- Depression
- Bipolar Disorder
- Generalized Anxiety Disorder
- PTSD
- Complex PTSD
- OCD
- ADHD
- Autism Spectrum
- Eating Disorders
- Insomnia
- Substance Use Recovery
- Burnout
- Dissociative Disorders
- Panic Disorder
Immune and inflammatory
- Long COVID
- MCAS (Mast Cell Activation)
- Lupus (SLE)
- Rheumatoid Arthritis
- Sjogren's Syndrome
- Hashimoto's Thyroiditis
- Crohn's Disease
- Ulcerative Colitis
- Celiac Disease
- Psoriasis
- Immunodeficiency
- Allergies
- Allergic Rhinitis
- Chronic Urticaria
- Dry Eye
Women's health, urology, ENT
- Endometriosis
- PCOS
- Menopause
- PMS / PMDD
- Overactive Bladder
- Tinnitus
- Vertigo
- Chronic Prostatitis
Endocrine and metabolic
- Type 1 Diabetes
- Type 2 Diabetes
- Hypothyroidism
- Hyperthyroidism
- Hyperthyroidism (Graves')
- Adrenal Disorders
- PCOS
- Metabolic Syndrome
- Obesity
- Gout
- Osteoporosis
- Anemia
Heart and vessels
- High Blood Pressure
- High Cholesterol
- Heart Failure
- Arrhythmia
- Ischemic Heart Disease
- Deep Vein Thrombosis
- Raynaud's
- Atrial Fibrillation
Respiratory
- Asthma
- COPD
- Sleep Apnea
- Pulmonary Fibrosis
Digestive
- IBS
- GERD (Acid Reflux)
- Fatty Liver (NAFLD)
- SIBO
- Gastroparesis
- Ulcerative Colitis
Bones, joints, connective tissue
- Ehlers-Danlos Syndrome
- Ankylosing Spondylitis
- Axial Spondyloarthritis
- Osteoarthritis
- Myasthenia Gravis
- Polymyalgia Rheumatica
Cancer survivorship
- Cancer Survivorship
- Cancer-Related Fatigue
- Chemotherapy Side Effects
Other conditions
- Multiple Chemical Sensitivity
- Electromagnetic Sensitivity
- Chronic Lyme Disease
- Mold Illness
- Hypermobility Spectrum Disorder
- Other (free entry)
From the person who built it
“Through two years of living with ME/CFS, daily records became my greatest ally.”
From the lived experience of the developer, Yohei Yamaguchi (note: @age)
Read more of these notes
中に入ると、こんな画面です
記録・気分・体調の数字は、お見せするための例です。ご自身の記録が外に出ることはありません。
この30日の記録のうつりかわりです。記録の無い日は点を打たないので、書けなかった日があっても線がごまかしません。
連続 10 日、記録がつづいています
毎日ひとこと残すと、ふりかえりと、あなたに合わせた打ち手がとどきます。相談はいつでも、何度でも。
Google アカウントは初回ログインで自動的に作成されます。
あいことばを決めずに入る
上に書いたメールアドレスにリンクをお送りします。届いたリンクを押すだけで入れます。
お試し分析（ログイン不要）
いまの体調や気分を書くと、その場で分析が返ってきます。書いた内容はどこにも保存されません。
About cares
A condition-tracking and information service for people living with chronic illness. Jot down today's condition, mood, meals and medication in a few words or a photo, and we return reflections and a small next step tailored to you, drawing on your accumulated data and the latest research.
What you can do
- Easy logging
- Record your condition, mood, meals, medication and sleep in a few words or a photo.
- Connect your devices
- Link an Apple Watch or similar device, and your health data is read alongside your notes.
- Read from your photos
- Photos of lab results or meals are read too, for what they say about your nutrition and how you are doing.
- Also a medication record
- Photograph a prescription or medication booklet and the medicines you take line up in your records, ready to show at a visit or pharmacy.
- Instant reflections
- Get a caring note and a today's word right after you write.
- Your flare-up patterns
- Careful correlation analysis surfaces the patterns behind your own flare-ups and calmer spells.
- Suggestions for you
- From your data and the latest research, only what you need, with reasons.
- Latest research
- See new studies on your condition, explained gently.
- Share easily
- Turn your records into summaries for doctors, family or social posts.
- Export anytime
- Export your own data whenever you like.
How your data is handled
- Stored encrypted
- Key items like diary, chats and profile are encrypted in the app (AES-GCM) and stored in Google Cloud's secure database.
- Only you can access
- Only you, when signed in, can see your data.
- Not used for training
- Your records are never used to train external models. Keys are kept server-side only.
- No third-party sharing
- We never provide or sell your health data to third parties.
- Delete anytime
- Delete your data or account from settings (restorable within 30 days). You can export at any time.
- Handled as sensitive data
- Health information is handled appropriately under applicable privacy law.
Your records are yours See how your data is protected (Privacy Policy)
Building the foundations of daily life
Blue Marlin Partners, the team behind cares, also builds tools that steady the other foundations of daily life: relationships, attention, time and assets. They share one way of thinking, and your profile and connections carry across them.