For macOS

Still sitting since 9 am?

Sitting all day raises your risk of heart disease, weight gain and high insulin.1 Chairtax locks your Mac at the interval you set, and the only way back in is to squat your way out. The camera counts every rep, on your Mac.

Meet Bearly. He squats when you do and cheers every rep.

  • Energy
  • Strength
  • Heart
  • Blood sugar

$29, paid once. macOS 14 or later. Setup takes two minutes.

A break, in motion

The screen pauses until you do the reps

A panel covers your work. The camera counts each rep, Bearly does it with you, and the ring fills. At the target the screen comes back.

A break of six squats on its panel over your frosted desktop. The break screen draws a stick figure from the camera's view of your joints. Your camera picture shows only if you turn it on.

A break

How a break goes

You choose the movement, the reps per break and the interval. Chairtax starts breaks in your workday and lives in the menu bar.

  1. The break notice: Break in 20 s · 10 squats, Grizzly rank.
    1 · THE NOTICE

    A notice first

    Thirty seconds before a break, a notice gives the movement and the target. If another app is using the camera or microphone, the break waits five minutes.

  2. The break screen: SQUATS, the stick figure drawn from the camera's view of your joints, Bearly, and a ring reading 2 of 6.
    2 · THE BREAK

    The camera counts

    The screen is covered on every display. Stand where the camera can see your head and hips, and do the reps. The camera counts from any angle.

  3. The finished break: 6 of 6, 6 reps done. Break over, with Blood sugar, Strength and Energy chips.
    3 · DONE

    The screen comes back

    At the target the screen comes back. The break adds to your streak and your reps in total.

In the menu bar

The menu shows the time to the next break, your streak and your reps in total. Break now starts one early. Pause breaks stops them for 1, 2 or 4 hours, until morning, or until you resume.

Movements

Seven movements to choose from

Pick one in setup and change it in Settings. The camera counts six of them. Reps per break: 5, 10, 15 or 20. Interval: 15, 30, 45 or 60 minutes.

  • Squat

    Bend your knees until your hips drop, then stand up. It works your thighs and glutes, the largest muscles in your body.

    Blood sugarStrengthEnergy
  • Chair stand

    Stand up from your chair and sit back down. Doctors use it to test leg strength, and you can do it in work clothes.

    Blood sugarStrength
  • Jumping jacks

    Jump your feet apart as your arms go over your head, then back. It raises your heart rate within a few reps.

    HeartEnergy
  • High knees

    Run on the spot, bringing each knee up to hip height. Land softly and it stays quiet.

    HeartStrengthEnergy
  • Overhead reach

    Raise both arms over your head, stretch, and lower them. It needs no floor space.

    Energy
  • Side bends

    Lean to the left, then to the right. It stretches your sides after hours at the desk.

    Energy
  • Typed phrase

    For when the camera can't see you

    You type the sentence you signed in setup, and the break ends. It needs no camera, and it does not count toward the money-back challenge.

Ranks

Pick your rank

The higher the rank, the harder a break is to skip. You sign your rank in setup, and changing it later asks for the signature again.

Cub

A card over your work. You can dismiss it, and that ends your streak.

Brown bear

The screen is covered. A few skips a day, and you can switch apps.

Grizzly

The screen stays covered until the reps are done. No skips.

Every rank has an emergency override. Press it and the screen comes back after 60 seconds. A break ends on its own after 15 minutes, or after 30 seconds in which the camera cannot see you.

What a break does

What each break does for you

A few reps every break keeps your energy up, your legs strong, your heart working and your blood sugar steady.

Energy

Every break gets you out of the chair and moving. At a 30-minute interval that is 18 breaks in a nine-hour workday.

Strength

Squats and chair stands work your thighs and glutes. At 15 reps every 30 minutes, that is 270 reps in a nine-hour workday and 1,350 in a working week.

Heart

Jumping jacks and high knees raise your heart rate for the minute a break takes, many times a day.

Blood sugar

In a 2021 study, 15 chair stands with calf raises every 30 minutes cut the insulin rise after lunch by a quarter to a third, compared with sitting all afternoon. In adults with type 2 diabetes, three minutes of half-squats and similar moves every 30 minutes lowered blood sugar after meals.

  • Gillen JB et al. Interrupting prolonged sitting with repeated chair stands or short walks reduces postprandial insulinemia in healthy adults. Journal of Applied Physiology 130(1):104–113, 2021.
  • Dempsey PC et al. Benefits for type 2 diabetes of interrupting prolonged sitting with brief bouts of light walking or simple resistance activities. Diabetes Care 39(6):964–972, 2016.
  • Chairtax is not a medical device and gives no medical advice. If a movement hurts, stop and choose a gentler one.

Privacy

Nothing leaves your Mac

The camera counts your reps on the Mac itself.

  • Pose detection runs on your Mac with Apple's Vision framework.
  • No frame is stored, uploaded or shown to anyone.
  • The break screen shows a stick figure by default. Your camera picture appears only if you turn it on.
  • The camera is the only permission Chairtax asks for.
  • The app makes no network connections. It has no accounts and no analytics.
  • Your breaks, streak and reps are kept in a file on your Mac.
Read the privacy policy

Pay once, keep it forever.

  • One payment of $29. Sales tax or VAT is added at checkout where it applies.
  • Use it on every Mac you own.
  • Nothing leaves your Mac.

Bought here, Chairtax comes as a download and a licence key, shown after checkout and sent by email. Setup runs without a key; breaks start once the key is in. On the Mac App Store you pay Apple and need no key.

Money-back challenge

Do the reps and get your $29 back

100reps a day
16of your first 30 days
$29back to you

Every licence bought on this site comes with it. The 30 days start the first time you enter your key. Reps the camera counts in any break, with any camera movement, count toward it. When you have met it, email the code from each Mac you used (Show challenge code…) and your Paddle order number to [email protected] within 14 days after your 30 days end, and we refund the $29 through Paddle. You keep Chairtax.

The full terms and how to claim