SitStraight is a posture monitoring app for Windows, Mac, and Linux. It watches your posture through your webcam and reminds you the moment you slouch. It also reminds you to rest your eyes, drink water, and check in on your mood — all through the day, automatically. Everything runs on your own computer — nothing is ever recorded or sent anywhere. See the research ↓
Four gentle nudges, all day:
SitStraight reads live pose data and immediately throws the video away — nothing is ever recorded, stored, or sent anywhere. This isn't a policy promise you have to trust; it's how the app is built.
Exactly what SitStraight looks like on your desktop, start to finish.
Ten focused tools in one posture monitoring and reminder software — keeping you upright, hydrated, and rested, without ever interrupting a meeting.
Webcam-based and calibrated to your own body, fully on-device. Works as a slouch detector for Windows, macOS, and Linux — detecting Aligned, Forward/Backward tilt, and Left/Right tilt, with real face detection so objects can’t be misread as a person.
Posture alerts, a screen break reminder (eye breaks, 20-20-20), a hydration reminder (water sips), and Mood check-ins — each fully configurable to your own schedule.
Automatically detects when your camera is locked by another app — a call, a meeting — and goes silent: no posture, eye, water, mood, or challenge notifications interrupt you. Only your own scheduled To-Dos still come through. A manual Pause Notifications toggle gives you the same control on demand.
No photo or video frame is ever captured, recorded, or saved, at any point. What’s stored is a handful of numbers per check (an angle, a score, a timestamp): months of daily use runs in the tens to low hundreds of KBs, and even years of continuous use tops out around a few MBs.
Daily breakdowns and weekly or monthly trend rollups show exactly how your posture, hydration, eye breaks, and mood are trending — not just today, but over time. Export any report as a PDF whenever you want a copy.
A dedicated control in Settings permanently clears your posture, mood, and session logs to free up disk space — gated behind two confirmations and typing "DELETE" so it never happens by accident. Calibration, challenges, and to-dos are never touched.
Built-in challenges — posture, desk job back pain relief, no-dopamine, and a sit-stand reminder challenge for stand-up breaks — plus custom ones you create, with full progress tracking.
Personal scheduled tasks with date, time, and recurrence — separate from the automatic wellness reminders, so your own deadlines never get lost in the mix.
Five distinct breathing patterns for stress and posture resets, whenever you need sixty seconds to reset between meetings.
No cloud dependency, fully offline detection, and native support for Windows, macOS, and Linux.
SitStraight isn't built on vague wellness claims — every feature answers a documented harm of desk work.
Sit tall for five seconds so SitStraight learns your baseline. No accounts, no setup wizard.
It runs quietly in the background, nudging only when your posture drifts or a break is due.
Weekly reports show exactly how much your good-posture time has improved.
Every screen is built to inform in a glance, not demand your attention.
Accept · skip · complete
Guided reset sessions
Tasks with time reminders
~175 MB installer · runs fully offline · no account needed to install.
Windows 10 or 11 · x64 / arm64
Click to downloadDownload from Microsoft Store — recommended, auto-updates
Free for everyone through Dec 31, 2026 — no card required. Trouble installing? See the user manual.
No payment, no card, nothing to cancel — sign in and every feature is unlocked for free through the end of 2026. Lifetime access is ₹299 (normally ₹2500) after that, if you want to keep it.
no payment required · ₹299 lifetime access afterward
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No. All posture detection happens on-device — nothing is recorded, stored as video, or sent anywhere.
Yes — every feature is free for everyone through December 31, 2026, no payment or card required. After that, lifetime access is a one-time ₹299 — no subscriptions, no renewals.
Windows, macOS, and Linux. Any laptop or desktop with a webcam works — the app is lightweight and runs quietly in the background.
You control every interval. Preview or pause any reminder at any time — they're gentle by design.
Posture monitoring software uses your webcam to watch your sitting position in real time and alert you the moment you slouch or tilt your head, instead of you noticing only after your back or neck already hurts. SitStraight does this fully on-device — no video is ever recorded or uploaded — and calibrates to your own body's baseline, not a generic template.
Long, uninterrupted sitting with poor alignment is a well-documented contributor to low back pain, and many people also notice tailbone (coccyx) discomfort and sciatica-like leg pain after hours in the same position. A posture reminder software like SitStraight can't fix an existing injury, but it directly targets the cause: it catches slouching early, and its Stand-up Breaks challenge nudges you out of the chair at intervals, so you're not sitting in one position for hours on end.
Look for a water reminder that runs quietly in the background and lets you set your own interval — deep focus work makes it easy to go hours without a sip. SitStraight's water sip reminder fires every 30, 45, or 60 minutes (your choice) and tracks which nudges you actually acted on, so your History and Reports show real hydration consistency instead of good intentions.
Staring at a screen suppresses your natural blink rate, which is a major cause of digital eye strain — dryness, blurred vision, and end-of-day headaches. The standard eye-care recommendation is the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds. SitStraight automates exactly that rule with a 20-second countdown ring, so an eye blink and eye strain reminder actually gets completed instead of dismissed out of habit.
A home desk, kitchen table, or laptop-on-the-couch setup causes exactly the same slouching and neck strain as a bad office chair — the fix isn't a better desk, it's catching the slouch while it's happening. SitStraight works as a posture corrector for laptop users anywhere: it calibrates to your own baseline through your webcam and alerts you the moment you drift, whether you're at a proper desk or working from home.
A sit-stand reminder should nudge you out of your chair on a schedule you actually control, not a fixed timer that fires during a call. SitStraight's Stand-up Breaks challenge does this — pick how often you want to be reminded (every 30 minutes, hourly, every 2 hours, or daily), and it pauses automatically if it detects your camera is busy in a meeting.
SitStraight runs natively on Windows, macOS, and Linux — the same posture tracking app and slouch detector, calibrated separately to your own baseline on whichever machine you install it on. There's no cloud account required to sync; each install just needs its own quick calibration.
Wearable posture corrector devices (braces, clip-on sensors) give a physical nudge — a vibration or gentle pull — but most track nothing over time and some people find them uncomfortable to wear all day. A posture corrector app like SitStraight uses your existing webcam instead of a new device, calibrates to your actual body rather than a generic strap size, and builds a posture score and history you can look back on. If you already dislike wearing something on your back, software is the lower-friction starting point; a brace can still help as physical support alongside it.
Most free posture apps are really just screen-time or stretch timers — they remind you on a fixed schedule but can't actually tell if you're slouching. SitStraight uses your webcam to detect real posture — and through December 31, 2026, it's free too. After that it's a one-time ₹299, not a subscription, with every future update included.
Not if it's built right. SitStraight runs its pose-detection model about once a second, not on every video frame, and it isn't GPU-dependent — it works on any x64 or arm64 CPU from the last 8 years with 4 GB of RAM. There's no continuous video processing or cloud upload happening in the background.
SitStraight's installer is about 175 MB, and the installed app takes up roughly 475 MB total — that includes the bundled machine-learning models that let posture and face detection run fully offline, so there's no separate download needed later.
No — posture and face detection run entirely offline in SitStraight, since the detection models are bundled into the installer rather than fetched from a server. The only things that ever touch the network are an optional sign-in/license check and an automatic update check on startup, both of which fail silently if you're offline.
SitStraight doesn't send data anywhere: camera frames are processed in memory and discarded immediately, no video is ever recorded or uploaded, and there's no background telemetry. On Windows, it installs to a per-user folder by default rather than a system-wide location. For IT-conscious environments, the fact that nothing leaves the device is the main thing to check before approving any posture software.
Yes, for everything except the posture check itself. SitStraight's eye-break, water, and mood reminders all work with no camera connected — only real-time posture monitoring needs a webcam, since that's the one feature that actually has to see you.
It should stay out of your way during calls, and that's the test worth applying to any posture software before installing it. SitStraight detects when your camera is already claimed by another app — a Zoom or Teams call, for instance — and automatically stops monitoring and goes silent until the call ends, rather than fighting your meeting software for camera access or popping up alerts mid-call.
Yes — SitStraight runs natively on Linux, not just Windows and Mac, distributed as a portable AppImage or a .deb package for any modern glibc-based, x64 distro. The only Linux-specific setup step is making sure your user account is in the video group so the app can access the webcam; Wayland sessions may also need PipeWire portals configured.
For SitStraight specifically: Windows 10/11, macOS 11 or newer, or a modern Linux distro; 4 GB of RAM minimum; and any x64 or arm64 CPU from roughly the last 8 years. A webcam is only required for the posture-monitoring feature — the other reminders work without one.
SitStraight does, in the sense that matters most: it runs a real machine-learning pose-detection model on your device to measure your actual body position, calibrated to your own baseline — not a fixed timer pretending to be smart. All of that inference happens locally; nothing about your posture is sent to a cloud AI service.
Yes — SitStraight is a one-time purchase (₹299 for lifetime access, free for everyone through December 31, 2026), not a recurring subscription. That's worth checking before you commit to any posture app, since several competitors bill monthly for what is fundamentally the same webcam-based detection.
In practice the terms are used almost interchangeably, but "monitoring" usually implies it detects and alerts you to your actual posture in real time, while "correction" sometimes refers to physical devices — braces or wearables — that provide passive physical feedback instead. SitStraight is posture-monitoring software: it watches through your webcam and tells you the moment you slouch, rather than relying on a brace to hold you in place.
The better tools — SitStraight included — use a computer-vision pose-detection model to locate key points on your body (head, shoulders, spine) from your webcam feed, compare that to a baseline captured during a short calibration step, and alert you when your position drifts past your own threshold for long enough to matter. This is different from a screen-time timer, which has no idea what your body is actually doing.
Brace-style posture correctors genuinely work for what they're built to do — physically limiting how far your shoulders can roll forward, which gives real support during long sits. What they can't do is tell you whether your posture is actually improving over time, since most have no app or log, and they only help during the hours you remember to wear them. SitStraight takes a different approach: it watches through your webcam instead, so there's nothing to put on, and it keeps a daily and weekly history so you can see whether the slouching is actually going down.
Forward head posture — your ears sitting visibly in front of your shoulders — builds up gradually from hours of leaning toward a screen, and the fix is two-sided: exercises like chin tucks and doorway chest stretches retrain the muscles that hold your head back, while catching the slouch while it's happening stops it from building up in the first place. SitStraight handles the second half — it alerts you the moment your head drifts forward past your own calibrated baseline, rather than you noticing only once your neck already aches.
For wearable braces, the difference is mostly sizing and fit — chest strap length, shoulder width, and whether a bra-style design is more comfortable than a strap-style one. It's not a difference in how the device actually works. Software doesn't have that problem at all: SitStraight calibrates to whatever body shows up during the one-time calibration step, so there's no sizing decision to make.
Yes, if your current chair is actively working against you — no lumbar support or a seat height that forces a slouch no matter how disciplined you are. Posture software catches the moment you drift and corrects it in real time; a good chair makes the correct position the easy default in the first place. They solve different problems and work best together, not as substitutes for each other.
No — unlike some free posture apps that only allow about an hour of monitoring a day before asking you to upgrade, SitStraight's current free period (through December 31, 2026) is fully unlimited: every feature, all day, every day, with no usage cap and no credit card required.
Frido and similar brands make wearable braces that physically support your shoulders — real, useful hardware. SitStraight is software: it uses your existing webcam to detect your actual position, calibrated to you, and alerts you the moment you slouch, with no device to wear or remember. A lot of people use both — a brace for physical support during specific hours, software running in the background the rest of the day.
For an office setup in India specifically, look for three things: one-time pricing in rupees instead of a recurring dollar subscription, posture detection that runs fully offline so it isn't dependent on office wifi, and automatic silence during Zoom or Teams calls so IT and colleagues never see a popup mid-meeting. SitStraight is built around exactly that — ₹299 lifetime (free through December 31, 2026), on-device detection, and meeting-aware pausing — on Windows, macOS, and Linux.
Real-time alerts specifically means the software is watching your actual position through your webcam and alerting you the moment you drift, not firing on a fixed timer regardless of whether you're slouching. Most tools that do this bill monthly; SitStraight does real-time webcam-based detection for a one-time ₹299 (free for everyone through December 31, 2026), which is lower total cost than a few months of most subscription alternatives.
For daily laptop use, the main thing to check is whether the app actually detects slouching via your webcam versus just reminding you on a schedule — and whether it's light enough to run in the background all day without draining battery or slowing down other work. SitStraight runs its pose-detection model about once a second rather than on every video frame, works on any laptop webcam, and calibrates to your own baseline the first time you use it.
Desk-job neck and shoulder pain usually comes from a forward-leaning head and rounded shoulders held in the same position for hours, while lower back pain comes more from a slouched, unsupported lower spine — related but slightly different patterns. Chin tucks and a screen raised to eye level target the neck; lumbar support and standing breaks target the back. SitStraight's posture alerts catch both patterns as they happen, and we've written fuller guides on back pain and on fixing protracted shoulders specifically.
The same fundamentals as any desk setup — feet flat, lower back supported, screen at eye level, elbows near 90° — but home furniture (a sofa, a dining table, a bed) usually needs a cushion for lumbar support and a raised laptop to get there, rather than an out-of-the-box fit. SitStraight's webcam-based alerts work the same way regardless of what furniture you're using, since it calibrates to your own setup rather than assuming an office chair.
General guidance is roughly 8 glasses (about 2 liters) a day, though the exact number varies by body size, climate, and activity level. What matters more than hitting an exact number is drinking consistently through the workday rather than in one or two large bursts — deep focus work makes it easy to go hours without noticing you're thirsty. SitStraight's water sip reminder fires every 30, 45, or 60 minutes (your choice) and tracks which nudges you actually acted on.
Yes — a quick two-slider check-in (energy and pleasantness) that maps to a simple mood zone: Excited · Happy, Stressed · Anxious, Calm · Content, or Tired · Sad. A single day rarely tells you much, but a record over weeks in History and Reports can show patterns you wouldn't otherwise notice — like consistently lower energy on meeting-heavy days. Mood logs stay on-device like everything else in SitStraight; nothing is uploaded.
We read every mail — licensing issues, feature ideas, or just to say your back feels better.
info@sitstraight.inSitStraight nudges you all day, every day — quietly, locally, and only when it matters.
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