Sinistr
Verification required · est. 2026

Answers from the correct hand, finally.

Sinistr is a Q&A network with one membership rule. You answer with your left hand or you don't answer at all. We check.

Right-handers welcome to read. Quietly.

grip verified
Hand CheckSESSION 9.0s
Dominant hand detected: left
Grip tremor within tolerance
Smudge pattern consistent
Cleared for answering
Approved ◣
01

The policy, in three parts

credentialing

The Nine-Second Hand Check

Before your first post, you hold your phone in your dominant hand for nine seconds while the accelerometer reads your grip tremor. Pass and you're in. Fail and you get a courteous redirect to the right-handed internet.

quality

Lived-Experience Scoring

Every answer is graded on left-handed authenticity. Threads about scissors, spiral notebooks, three-ring binders, and the smudge problem are flagged high-stakes and routed only to senior verified members.

trust & safety

Read-Only Solidarity

Right-handed visitors get full read access and zero reply access. They can study the answers. They cannot contribute. We find this arrangement fair and they have not been able to tell us otherwise.

02

What members say

"I asked how to open a can without losing a knuckle and got eleven answers from people who actually live it. Not one of them was smug about it."
DW
Dolores WhitfieldLeft-Handed Since Birth, Verified Tier 2
"We moved the whole engineering guild off the right-handed internet. Onboarding rejected two of my reports, which was awkward at standup, but ultimately correct."
MP
Marcus PellVP of Platform, Southpaw Collective
"The hand check failed me four times before it believed me. By the fifth attempt I had never felt so accurately seen."
PA
Priya AnandAmbidextrous, In Recovery
03

Pick a hand

Southpaw
$0/mo
For the casually correct.
  • Read every thread
  • Answer up to three questions a month
  • One handedness re-verification per quarter
Start free
Cack-Hand
$14/mo
For the committed.
  • Unlimited answers
  • A small green dot proving you were verified in person
  • Top placement in scissors threads
Go committed
Corporate Sinister
$2,400/seat/yr
For the entire left-handed workforce.
  • Bulk onboarding with handedness audit
  • SSO that rejects right-handed credentials
  • A dedicated account manager who is also left-handed
Contact sales

Read the Left Feed before you commit.

No credentials needed to look. You'll need the right hand, by which we mean the left one, to reply.

open the demo →