ShellNewHandler VS Backsight.app

Backsight.app's answer:

The combination nobody ships together: private voice capture (on-device transcription, audio discarded) + end-to-end-encrypted, accountless storage you fully own + a stats dashboard with honest uncertainty — every correlation shows its sample size, confidence interval, and false-discovery-rate context. It's a mirror, not a coach: it reports what's in your notes ("anxious on 11 of 14 Sundays"), never diagnoses, advises, or predicts. You can also point your own AI agent at your own data. Each piece exists somewhere; the combination — and the CI/FDR rigor bar — doesn't.

Backsight.app's answer:

A shared TypeScript core (statistics + FDR, E2EE protocol, sync, data model) imported by both surfaces; React Native (Expo) for iOS + Android and a React web dashboard; on-device speech-to-text via Whisper (whisper.cpp / Whisper-WASM); end-to-end encryption via libsodium (react-native-libsodium + libsodium-wasm); an optional MCP server + skill for the agent interface; Cloudflare Pages + D1 for the waitlist landing.

Backsight.app's answer:

• vs journaling apps (Day One, Apple Journal): private by default — accountless, E2EE, on-device voice, unlimited free export. Your data isn't the business; subscriptions are.
• vs QS/correlation apps (Exist.io, Welltory): the same correlations, but with confidence intervals and multiple-comparison correction — honest uncertainty instead of automated p-hacking.
• vs voice-journaling apps (Rosebud): a descriptive mirror with no cloud LLM reading your entries and no prescriptive coaching.
• You're never locked in: unlimited export/import, and you bring your own agent.

Backsight.app's answer:

Privacy-conscious power users — the HN / Reddit / Proton / Home Assistant crowd who adopt for total data ownership and the bring-your-own-agent angle, then set it up for family. Plus the quantified-self and reflective-journaling community that wants statistical rigor, not vibes. Deliberately not a mass-market wellness play.

Backsight.app's answer:

My parents are getting older, and somewhere along the way I became the one who keeps an eye on them — close enough to notice when something's a little off and say it out loud: you've mentioned that twice now, you seem more tired lately. Then it hit me that nobody plays that role for me, or for my girlfriend. Nobody watches your own life closely enough, for long enough, to catch the thing you can't see from the inside.

And everyone already keeps notes — a journal, voice memos, a line typed at 2am — we just never do anything with them, so the patterns stay invisible. Because you're bad at statistics about yourself. You don't notice you've been low on 11 of the last 14 Sundays, or that your sleep tanks every week you skip the gym.

So Backsight turns your notes into honest stats — repetition, spikes, changes, correlations. Your notes become stats. Privately. Three bets make it different:

• A mirror, not a coach — it shows you what's in your data; it never diagnoses or tells you what to do. You draw the conclusion, the way I do for my parents.
• Private by default — on-device, end-to-end encrypted, accountless. I literally can't read your notes.
• Yours to keep — CSV import/export is always free, no lock-in. The optional subscription is just convenience: cross-device sync and a self-hosted MCP server to point your own AI agent at your