Backsight.app
Speak a moment and get private, on-device stats from your notes.
Speak a moment and get private, on-device stats from your notes.
This page is designed to help you find out whether Backsight.app is good and if it is the right choice for you.
Backsight turns quick notes into stats you can act on. Speak for a moment and it transcribes on-device, then your offline dashboard surfaces patterns over time — repetition, distribution, spikes, changes, and correlations.
Backsight syncs end-to-end encrypted across devices with keys you control. You can export and import raw data anytime to avoid lock-in, and even connect a local MCP server so your own agents analyze data on your machine while we never see it.
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Focused Use Case
Backsight.app appears to be designed around a specific niche (reflection, review, or retrospective tracking), which can make it more effective and less bloated than general-purpose tools trying to do everything.
Simple Interface
Many niche apps like this prioritize a clean, minimal user interface that reduces the learning curve and lets users quickly start logging or reviewing information without extensive onboarding.
Encourages Reflection Habits
Tools built around retrospectives or backward-looking reviews can help users build consistent habits of reflection, which can improve decision-making and personal or team growth over time.
Potentially Lightweight and Fast
Smaller, purpose-built apps often load faster and have fewer dependencies than large SaaS platforms, giving users a snappier experience for their specific task.
Likely Affordable or Free Tier
Niche apps built by small teams or indie developers often have simpler, more affordable pricing structures compared to enterprise-focused competitors.
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.
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.
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.
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:
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