Tactu listens for 10 seconds, then writes a clinical note your doctor can act on — NRS score, body locations, contributing factors, all in your own words. Pocketable. Private. Built for chronic pain.
Tactu is four tabs and a voice button. Everything else — the chart, the heatmap, the doctor report — computes itself from what you already said.
Built on the McGill Pain Questionnaire lexicon with GPT-4o clinical translation. Correlates your pain with sleep, steps, weather, and medications — automatically. Designed to make you heard at every appointment.
Tap once, describe what you feel in plain language — English, Ukrainian, or Russian. Auto-stops at 10 seconds so flare-day cognition isn't a blocker.
GPT-4o converts your words into a chief complaint, character descriptors, radiation pattern, and a grounded 0–10 NRS score using the McGill lexicon.
Everything the AI extracted is editable before save — pain score, body locations (10 regions), contributing factors (8 tags), the note itself. You're always in control.
Barometric pressure, humidity, temperature — attached to every entry silently, no taps, no location prompts when you set a home city. Pressure drops correlate with flares.
Tap once to start a flare. Tap again to end. Tactu records every flare's duration and computes how different your pain is during flares vs your baseline.
Record the meds you're on in Settings. Logged medications appear in the doctor report alongside pain trends — the answer to "what have you tried".
With permission, Tactu reads your sleep, steps, and resting heart rate around each entry — surfacing context the AI and your doctor both find useful.
Line chart with 7-day, 30-day, 3-month, and 1-year ranges. Spot ramping-up trends before they become hospital visits.
A quarter of your pain, on one screen. Color intensity maps to the day's peak NRS — bad weeks jump out visually.
7-day trend delta. Worst weekday. Severe-day percentage. Top trigger correlation. Affective language shift. Flare vs baseline. Only surfaces when there's signal.
Pick a time. Tactu taps you once a day: "How's your pain?" One log keeps the record honest. Opt-in, no push spam.
One tap assembles an AI narrative, pain stats (avg / peak / severe %), flare episodes with durations, top locations, top triggers, medication list, McGill descriptor frequency, Apple Health context averages, and your worst three episodes. Share by Messages, email, Files, or print PDF — before any appointment.
Tactu is a documentation tool, not a medical device. It doesn't diagnose, treat, or replace a clinician. Always consult your healthcare provider.
No accounts. No API keys to paste. Download from the App Store, open it, and start speaking — Tactu handles the rest.
Open the app, hit the red button, describe what you feel — any language, no medical vocabulary required. Prefer typing? There's a field for that too.
AI extracts an NRS score, body locations, contributing factors, and writes a clinical note. Correct anything with one tap before you save.
Before your appointment, generate the Doctor Report. Your doctor gets narrative, stats, triggers, and context — in the time it takes to read one page.
Most health apps ask you to paste an API key or trust an anonymous server. Tactu does neither — every request is cryptographically signed by your phone's Secure Enclave, and our AI credentials live server-side where you can't be social-engineered out of them.
Apple's DCAppAttestService generates a Secure Enclave keypair on first launch. Every OpenAI request is signed with that key plus a monotonic counter. If the binary is tampered with or the signature replayed, our server rejects it.
OpenAI credentials never ship in the iOS binary. They live in Vercel environment variables, scoped to our proxy. Rotation is a one-line change — no App Store review required.
Entries, flares, medications, Apple Health context — none of it leaves your device. Only your voice (for transcription) and typed text (for clinical translation) round-trip through our server, and neither is stored after the response.
No accounts. No analytics. No ads. Download from the App Store, open the app, and start speaking — the only personal detail we ever know is what you choose to type into a pain entry, and it never leaves your phone.
Feedback · Support
Have a bug, a feature request, or a question about your data? Leave a note and we'll respond within 48 hours.
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Free on the App Store. iPhone, iOS 26+.
No subscription. No accounts. No servers you have to trust.