Quell

Filter difficult people.

A single number to preserve your calm.

No app needed · Cancel anytime · $10/mo

A person receiving calmer text messages with Quell

Remove hostility

Preserve meaning

Restore peace

How it works

1

Get your number

Get your own private Quell number.

2

Share it

Give it to a person to filter.

3

Breathe easier

Receive less hostility.

What people are saying

I used to dread opening texts from my ex. Now I just read the facts and move on with my day.

Sarah

Co-parent

The first time I saw a rewritten message, I actually laughed. It was so calm compared to what was sent.

Marcus

Going through divorce

My therapist recommended setting boundaries. Quell does it for me without the confrontation.

Jamie

Dealing with a difficult parent

Why not just block them?

Blocking cuts you off. Doing nothing wears you down. Quell is the middle ground.

Do nothingBlock themQuell
Hostile messagesYou read every wordYou miss important infoRewritten calm, facts intact
EmergenciesMixed in with the noiseBlocked entirelyAlways delivered immediately
Your repliesRisk escalatingCan’t reply at allGo through unmodified
Evidence / admissionsLost in the chaosNever receivedForwarded verbatim
Your peace of mindConstantly on edgeGuilt and missed infoCalm and in control

Privacy you don’t have to take our word for.

Zero Retention

Messages processed and immediately discarded

Encrypted Transit

TLS encryption on every connection

Content-Free Logs

Application logs never contain message text

Consistent Filtering

Every incoming message held to the same standard

Stateless AI

No chat history — each message stands alone

Quell processes each message in real time and immediately discards it. No chat history, no archive. Your replies go through unmodified. Learn more →

One plan

$10/mo

  • Unlimited filtered messages
  • Works over regular SMS — no app
  • Emergency messages always pass through
  • Facts and details preserved
  • Cancel anytime, no contracts

See the difference

Real messages, rewritten in real time.

What they send
What you receive
Emma's recital is Friday at 6pm at Lincoln Elementary. Not that you'd bother showing up.
Emma's recital is Friday at 6pm at Lincoln Elementary.
Must be nice going out while I'm home doing homework with the kids every night.
I'm feeling overwhelmed handling homework with the kids every night.
I already paid the $15 for the field trip. You'd know that if you ever read the school emails.
I already paid the $15 for the field trip.
I packed extra layers because I knew you wouldn't think of it. As usual.
I packed extra layers.

Frequently asked questions

Does the other person know their messages are being filtered?
No. They text your Quell number like a normal phone number. They don’t see the rewritten version — only you do.
What if the message is already calm?
Calm messages are delivered as-is with minimal changes. The rewriter only activates when it detects hostility or passive aggression.
How fast is it?
Most messages are rewritten and delivered in under 3 seconds. You won’t notice a delay.
What about emergencies?
Messages about health emergencies, safety threats, or time-sensitive situations are flagged and delivered immediately with all details preserved.
Is this just for co-parents?
No. Quell works for any relationship where texts get tense — exes, difficult family members, roommates, and more.
What’s the catch?
There isn’t one. $10/month, cancel anytime. No contracts, no hidden fees. Quell doesn’t store your messages — they’re processed and discarded in real time.

Ready for calmer texts?

Set up in 2 minutes. No app to download.