A health app that patients actually open every day is worth more than a portal they log into once.
We build custom mobile apps for healthtech startups — patient engagement, remote monitoring, care plan adherence, and the HIPAA-aligned infrastructure your pilots and investors require. Fixed scope, fixed price.
Your web portal works. Engagement is 12%. Patients check in at onboarding and disappear. A mobile app with the right notifications, habit loops, and offline capability changes that number fundamentally.
The hardest problem in digital health isn't building the app. It's getting patients to use it more than once. The average patient-facing health app has 7-day retention under 20%. Web portals are worse. The chronic conditions and care programs that benefit most from digital engagement — diabetes management, behavioural health, oncology support, physical therapy adherence — require patients to show up daily or weekly for months. A web portal with no notification channel, no habit-forming structure, and no offline access doesn't compete with the other apps on a patient's home screen.
Mobile changes this, but only when it's built right. The apps that drive clinical outcomes have a few things in common: they surface the right action at the right moment (push notifications timed to the patient's schedule, not a generic 9am blast), they make the high-engagement actions frictionless (check-in should be one tap, not three screens), and they make progress visible so patients feel the momentum of a streak they don't want to break.
On the compliance side, a health app that collects symptoms, check-in data, or connects to wearables is handling PHI. That means HIPAA-aligned infrastructure, BAAs with every data subprocessor, proper session management, and the technical controls your health-system pilot partners will ask about in their security questionnaire.
A patient-facing mobile app with the engagement patterns — push, streaks, check-in flows, and progress — that keeps your users active between clinical touchpoints, with HIPAA-aligned infrastructure from day one.
Daily check-in flows designed for adherence
One-tap symptom logging, mood tracking, medication reminders, and habit check-ins — structured to take under 60 seconds, with streak tracking that makes missing feel notable.
Push notifications tuned to the patient
Condition-specific reminders, care-team messages, appointment reminders, and motivational nudges — with opt-in granularity so patients choose what they receive.
Care plan and task lists
Prescribed exercises, educational content, questionnaires, and goals — assigned by care team, tracked per patient, and visible to both patient and clinician.
Wearable and device integrations
Apple Health, Google Fit, Withings, Garmin, and Dexcom where relevant — with data ingested and stored in the HIPAA-aligned data layer, not just passed through.
Clinician companion view
A web-based dashboard where care teams see patient engagement, check-in trends, and alert flags — without logging into the patient's app. Built with Expo and React Native, offline-capable, Convex with BAA-covered data layer, Clerk (with BAA) for auth, and Apple Health / Google Health Connect integrations as appropriate.
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
A patient-facing mobile app with the engagement patterns — push, streaks, check-in flows, and progress — that keeps your users active between clinical touchpoints, with HIPAA-aligned infrastructure from day one.
Three steps, every time.
The same repeatable engagement on every project. No surprises, no mystery, no billable ambiguity.
Brief & discovery.
We send you questions, then get on a call. Output: a written scope with every step, feature, and integration listed.
Build & ship.
Fixed schedule, weekly reviews. No scope creep unless you change the scope — and if you do, we reprice it transparently.
Warranty & retainer.
30-day warranty on every launch. Most clients stay on a monthly retainer for ongoing features and maintenance.
Why Fixed-Price Matters Here
Healthtech founders have burn-rate pressure and clinical deployment windows. A pilot that starts in March needs the app in February. Fixed scope and fixed price means your engineering spend is a known line on the cap table, not a variable that bleeds runway while you're also onboarding clinical partners and closing the round.
Related engagements.
Healthtech software is judged by clinicians, regulators, and patients. We build for all three.
Read more02Your clients deserve a portal that looks like it belongs to your business — not a vendor's.
Read more03An ecommerce MVP validates whether people buy the product, not whether you can build a store.
Read moreQuestions, answered.
BAA with every subprocessor touching PHI (Convex, Clerk, AWS, any notification service), encryption at rest and in transit, session timeout and biometric re-auth, audit logging of PHI access, and a data deletion flow for patient requests. We build to these standards by default.
Yes, via HealthKit on iOS and Google Health Connect on Android. Specific wearable APIs (Withings, Garmin, Dexcom, Oura) require device developer accounts and occasionally user consents — we handle those flows.
Clinicians get a web dashboard (not the patient app) with a clean view of their patient panel's engagement, flagged deviations from care plan, and the ability to send in-app messages. Same Convex backend as the patient app, different UX surface.
A patient-facing app with check-ins, push, care plan, wearable integration, and clinician view typically runs $60k–$120k. Scope depends on condition specificity, wearable types, and whether remote monitoring with escalation logic is in phase one. Fixed-price.
12 to 18 weeks including HIPAA infrastructure setup, wearable integrations, and clinical pilot deployment support.
Tell Ryel about your project.
Describe what you’re building and what outcome you need. You’ll have a written, fixed-price scope within the week.