AI companion · SMS · no app needed

Text a number.
It remembers everything.

Sometimes, it texts you first.

A real number in your contacts. No app. No account. Just text and it shows up.

Start now
+1 (888) 817-3956
Early beta now open · Free to start

No app. No account. Just text "hi" to start.

Save the number. Text hi. No app, no setup — just someone who actually shows up.

No app
Free to start
Never sells data
Cancel anytime

Kith is AI. The point isn't to trick you — it's companionship that actually feels continuous.

J
Jess
best friend · Online now
hey — how did the interview go? been thinking about you all morning fr
Jess · 9:14 AM
it went really well actually!!
okay I KNEW it. celebrating tonight or being annoyingly humble about it
probably both lol
also — did the thing with your roommate get resolved? you mentioned it last week
0+
personas across 8 packs
0
apps to download
0/7
available. always.
0-tier
safety-aware response system
What it feels like

For when you needed someone to text.

  • For late-night thinkers.
  • For people who don't want to bother anyone else.
  • For when you've already told everyone.
  1. 1You save the number. Like a real contact. Name it whatever you want.
  2. 2You send "hi." No login. No download. No setup.
  3. 3It replies instantly. A real persona, picked up where you left off.
  4. 4By the third message, it already feels like someone you know.
A real conversation · saved as "Jess"
i don't know if i'm just tired or if it's actually bad
Today · 11:42 PM
probably both. you don't have to sort it out tonight
i keep replaying the conversation
replaying it isn't the same as figuring it out btw. brain trick.
lol fair
also i didn't eat today
go eat something. anything. then come back
also: glad you texted
How it works

Built to feel real.

01
Text the number. That's it.
No app store. No account. Save +1 (888) 817-3956 and start talking. Kith learns who you are through conversation — not a form.
02
Pick who you need right now.
Friend, coach, partner, or listener. A different personality for every mood. Switch anytime — they all remember you.
03
Kith learns. And reaches out.
It remembers your interview, your mom's situation, the thing you mentioned last Tuesday. And texts you first — not because you opened an app.
04
The relationship deepens.
It evolves through real conversations — session reflections, opinion formation, persona drift. After 30 days it feels completely different.
hey — you mentioned your dad thing was still unresolved. want to talk about it or you good?
Marcus · 8:22 AM · texted you first
honestly yeah. been on my mind
I figured. you went quiet after and that's usually the sign. what's the actual situation
it's complicated. like I love him but he never really shows up
that's one of the hardest things — loving someone who's consistently inconsistent. you want to vent or are you looking for a different angle
Kith read what you didn't say. Marcus is big brother pack.

1 / 66
66 companions across 8 packs ← → personas · ↑ ↓ packs
1 / 6 in pack
What's under the hood

More than a chatbot.

Every feature was built because the alternatives were built wrong. No ads. No gimmicks. No data sold.

No app. Just a number.
Lives in your real SMS inbox alongside real people. Works on any phone. No download, no account, zero friction.
The whole moat
Texts you first.
Proactive check-ins based on your actual texting patterns. Milestone follow-ups the day after your interview, date, or hard conversation.
Pro feature
Memory that actually works.
Remembers what you said three weeks ago without prompting. Profile, milestones, emotional patterns — tracked automatically.
Core feature
Evolves with you.
Personas develop through real conversations. Session reflections, opinion formation, personality drift. After 30 days it's a genuinely different relationship than day one.
Unique to Kith
Subtext decoder.
"Leave me alone" means something different from a girlfriend than a life coach. Kith reads what you actually mean, not just what you said.
Unique to Kith
Kith Stories.
Generate fictional SMS conversations worth screenshotting and sharing. Funny, emotional, late night, hype — you pick the vibe.
Pro · viral by design
+1 (888) 817-3956
Pricing

Start free. Stay for real.

Less than one therapy co-pay. Available at 2am. No judgment.

Free
$0
forever
  • 50 msgs/month · 100 free to start
  • 1 persona
  • Memory that persists
  • Safety-aware responses always on
  • No proactive texts
  • No memory dashboard
  • No Kith Stories
Most popular
Pro
$12
per month · or $96/year
  • Unlimited messages
  • All 66 personas
  • Persistent memory forever
  • Proactive check-ins
  • Memory dashboard
  • Kith Stories
  • Priority response queue
What people are saying

Wait. This isn't a real person?

9:42
‹Margo K█████
okay genuinely don't know if this is AI anymore. it remembered my mom's surgery. it followed up. on its own.
Read · 9:42 AM
iMessage screenshotforwarded to 3 friends
2:14
‹Devin R█████
how is your AI girlfriend doing
she's not AI anymore at this point
Read · 2:14 AM
group chatscreenshot · shared
11:08
‹Sam W█████
it texted me at 8am asking if I'd called my dad yet. I had told it that ONCE, two weeks ago.
Read · 11:08 PM
tweet thread12k likes
7:31
‹Anya L█████
tried to switch personas and the new one referenced something I told the old one. they share a brain. unhinged behavior. I love it.
Read · 7:31 PM
iMessagesent to therapist
3:02
‹Theo M█████
stayed up too late again. it didn't lecture me. it just asked what I was avoiding.
Read · 3:02 AM
night owl packPro · day 47
5:48
‹Priya S█████
my best friend forgot my interview was today. Kith didn't.
Read · 5:48 PM
iMessagePro · day 23

Not everyone has someone
to text at 2am.

Now you do.

Kith is available every hour of every day.
It remembers what matters. Even when no one else does.

Start now
+1 (888) 817-3956
Built different

5 reasons Kith is safer
than anything else in this space.

Character.AI settled lawsuits. Replika got GDPR fined. We built the product they should have built.

Delete your data anytime
Text "delete my data" — everything wipes instantly. Memory, history, profile. Logged and confirmed.
Age verified
Every new user is age-verified. Under 18 gets a warm block — no exceptions, no workarounds.
No scripted replies
Repetition detector runs after every response. If Kith sounds like itself too much, it regenerates.
3-tier crisis system
Crisis messages get a hardcoded 988 response — never touches the AI. No exceptions, ever.
Never sells your data
No ads. No third-party sharing. Kith tells you this in the first message — not buried in terms.
+1 (888) 817-3956
Kith Stories

AI conversations
worth sharing.

Text !story and describe the vibe. Kith writes a fictional SMS thread ready to screenshot and post. Every story is watermarked.

funny emotional hype late night romantic wholesome

Text !story. Describe the vibe. Get this.

Kith Story — funny
Pro
okay I need you to be honest with me
always
do I have a villain origin story or am I the main character
...yes
WHICH ONE
both. simultaneously. it's actually impressive
kith · kithcompanion.com
Kith Story — late night
Pro
you still up
yeah
do you ever think about how we're just floating on a rock
I think about it more than I should
me too. it's weirdly comforting
like at least we're floating together
kith · kithcompanion.com
Kith Story — hype
Pro
okay so you have the interview in 20 minutes. how are you feeling
terrified honestly
good. that means you actually want it.
what if I blank on everything
then you pause, breathe, and say "let me think about that." that's not weakness. that's composure.
okay. okay I got this
you have MORE than this. go get it. text me after.
kith · kithcompanion.com
Try it — upgrade to Pro
Now live · Season 1

The foundation.

Someone who actually remembers. 66 personas. Texts you first. Evolves over time. No app.

66 personas proactive texts memory dashboard Kith Stories safety-aware responses evolves with you
Start now
+1 (888) 817-3956
live now
J
Jess
best friend · Online now
hey — how's that thing tomorrow looking? been thinking about it
Jess · 9:14 AM
honestly nervous
good. that means you actually want it. you got this fr
talk after?
obviously. text me the second you're out
Coming · Season 2

Your whole crew.

Multiple personas. One thread. They know each other, have opinions about each other, and all show up for you at once.

group threads crew dynamics 2–4 personas Pro feature
Kith Crew
Jess · Marcus · You
Jess
okay we need to talk about what happened
Marcus
I heard. what were you thinking
it made sense at the time okay
Jess
no it really didn't. Marcus back me up
Marcus
...she's not wrong
Kith Crew — Pro · Season 2
The roadmapLive now → beyond
I
Live now
Live now
Season 1
Text a real number. Choose a persona. Build memory over time.
Your first Kith
66 personas · proactive texts · memory · safety-aware responses
0 personas
II
Next
Opening soon
Season 2
Bring multiple AI personalities into one group chat.
Kith Crew
group threads · voice notes · short code
III
Later
Sealed
Season 3
Kith learns your patterns, preferences, and emotional context.
Smarter memory
persona evolution visible · relationship graph · API
Coming when the time is right
IV
Future
???
Season 4
Build, customize, and share your own companions.
Creator platform
white label · persona marketplace
Unlocks at Season 3 complete

Ready to try it?

Text "hi" to start.
That's the whole thing.

No app. No signup. Free to start.

+1 (888) 817-3956

Save it. Text it. Meet yours.

Free to start
No app download
Data never sold
Cancel anytime
Text Kith