A personal health-record app: lab values, blood pressure, weight and meals logged one line a day, then organized on one page before the visit. The mascot, Beanie, is a mint-green bean character that sets the tone of the app's guidance.
Situations that recurred in patient and caregiver interviews. Each one led to a feature.
"The checkup report said eGFR 54. Nothing hurt."
The kidneys show few clear symptoms until late stage 3. There is a number but no language to explain it, so most people walk past it.
"A three-minute visit. I didn't get to ask a single thing."
Three months of life have to fit into a few minutes. The patient, unable to recall them, says "I've been fine", and the clinician sees only the numbers. The two sets of information never meet in the exam room.
"Thirty minutes of searching. All that was left was fear."
Generic health information ends at lists of allowed and forbidden foods. Little of it starts from an individual's numbers and table.
"Ask, and it's nagging. Don't ask, and it's worry."
The person cooking and the person logging are different people. When they cannot see the same information, care turns into surveillance.
SLOW · SILENT · EXPENSIVE: a condition where all three overlap
It progresses slowly, shows no symptoms, and is costly when caught late. A condition with all three needs a tool that records daily, organizes before the visit, and can be seen together with family.
The base screens are the same for every user; the dialysis log is an add-on switched on in Settings.
Ninety days of labs, blood pressure, weight, body signals and questions on one page. Print it or save as PDF and bring it to the visit. The app never sends the report to clinicians; sharing is the patient's decision.
The last labs beside this one, the last 30 days beside these 30. In a chronic condition, no change is also a result worth confirming.
A single line at a time. No notification on skipped days; one line only three days before a visit, in a high-blood-pressure week, or when swelling persists.
The patient picks which items to share (eGFR, blood pressure, weight, body signals, meal patterns, questions) and sends one link. Unselected items are not in the link. Family opens it read-only in the same app. Live sync and the family subscription follow once a server is introduced. Supporter plans →
Breakfast, lunch, dinner and snack, each with a one-line note, a photo, pattern chips, and potassium / phosphorus / sodium caution tags. The patient sets the daily count goal; the app only counts. Reverse Content, swap suggestions that start from what you ate, is planned for v2.
For users on dialysis only. Pre/post weight per session and the gain between sessions, dry weight, daily fluid intake, symptoms and access-site signals, medication check. When off, it appears nowhere in the app. Read more →
eGFR (CKD-EPI 2021, race-free) · health journal · meals by slot (caution tags, photo) · trend charts · then-vs-now · the One-Pager · share with family (mirror card) · dialysis log (add-on) · 한국어/English · home-screen install (PWA) · offline use · export / import
Rows are the three needs of Self-Determination Theory; columns are the product's five systems. Ego-depletion theory suggests that management fails mainly from the number of daily decisions rather than from weak will. The design goal is therefore fewer decisions, not more features.
| Autonomy | Relatedness | Competence | |
|---|---|---|---|
| 01 AI Personalization | Choose how you log v2 | Beanie's tone adapts later | One thing to change today v2 |
| 02 Care Coordination | The patient holds the report MVP | D-7 question list v2 | Automatic then-vs-now MVP |
| 03 Daily Life | Swap list, not ban list MVP | Caregiver mirroring v2 | Just one thing this week v2 |
| 04 Emotional Continuity | The Quiet Nudge MVP | Beanie remembers later | Time Travel report v2 |
| 05 Family & Community | Choose what to show later | Anonymous peers, same stage later | Learn from those ahead later |
Two cells come from system 02 because the pre-visit report is the most defensible feature. Comparable U.S. services already present a PDF for the doctor as their core feature, so the quality of this area determines the product's competitiveness.
Most early churn comes from the impression that the app is issuing instructions. Competence takes time to build; autonomy is decided on the first screen.
Time-in-app and log counts prove the app is well made — not that the patient is better off.
No language for one's own state.
Facts recovered. Phase 1 goal for most users.
Language acquired. Phase 2 goal. Pass/fail line for each R&D cycle.
Life linked to numbers. Phase 3 goal. This is where the visit changes.
Few reach it, but those few pull the next patient up.
Korea's MFDS judges by intended use and risk, and the deciding factor is the wording. The same feature is wellness if it "helps you record" and a medical device if it "slows progression." In the U.S., the FDA explicitly lists tools that let patients record and organize health information as not medical devices.
| What we don't do | What we do instead |
|---|---|
| Stage the disease from eGFR and raise risk alarms | Let the patient enter, store, and chart the numbers the hospital gave them. eGFR is shown as a reference value only |
| Tell an individual "cut protein to X grams" | General dietary information from authoritative bodies, plus reminders. Individual guidance only within a clinician's prescription or referral |
| Transmit or analyze patient data for clinicians | The patient prints their own report and carries it in |
| Use "diagnose · treat · slow · improve" in marketing | Consistent health-management language: record, organize, look together |