Simit
Private messaging for iPhone

Your messages live on your phone, not on our servers.

Simit delivers your message, then forgets it. As soon as it reaches your friend's phone, it's permanently deleted from our servers. And only people who have your number saved can message you.

Download on theApp Store See what happens to a message
  • Deleted from our servers after delivery
  • Mutual contacts only
  • No ads or trackers
A one-on-one Simit conversation with a quoted reply, an edited message, a shared sunset photo and read receipts
Simit chat list with a search bar, a Group Invites row and recent one-on-one and group conversations

We don't keep your messages

Our servers are a relay, not an archive. Your history lives only on your phone and theirs.

Only people you know

Direct messages need both of you to have each other's number saved. Strangers can't reach you.

Groups need your yes

Nobody can drop you into a group. You see who invited you and decide whether to join.

Why Simit

Private by architecture, not just by promise

Simit is built so there's as little as possible on our servers to begin with.

Delivered, then deleted

Once it arrives, it's gone from our servers

Your message waits on our servers only until your friend's phone has it. Then it's permanently deleted, along with its edits and read receipts. If they never come online, it's deleted after 30 days anyway.

  • No message history on our servers
  • Delete for everyone removes it from their phone too
  • Search runs on your phone, over messages stored on your phone
What happens when you send a message
A Simit group chat planning a weekend brunch, with messages from several members and a quoted reply
Private photos

Photos without links

Every photo is encrypted on your phone with its own random key before it's uploaded. It goes to private storage, never to a public link or CDN, and it's deleted as soon as everyone in the chat has it.

  • A new encryption key for every photo
  • No shareable links and no public CDN
  • Deleted from storage once delivered (30 days at most)
What our servers keep
A one-on-one Simit conversation with a quoted reply, an edited message, a shared sunset photo and read receipts
Hidden previews

Notifications that don't give you away

Notification previews are set to Name only by default, so message text doesn't appear on your lock screen or pass through Apple's push service. Show more only if you want to.

  • Choose Nothing, Name only, or Name and message
  • Name only is the default
  • Message text goes through Apple's push service only if you turn it on
About notification privacy
The Simit settings screen with privacy, blocked users, chat, notification and storage options
Registration Lock

Protection against SIM swaps

If someone hijacks your phone number, they can receive your SMS code. With a Registration Lock PIN, that still isn't enough: they can't register your Simit account on another phone without the PIN.

  • Optional, and recommended
  • A 6 to 12 digit PIN you choose
  • Forgot it? You can register again after 7 days of inactivity
How Registration Lock works
The Simit welcome screen asking for a phone number to sign in
And more

Everything you need to stay close

Mutual contacts only

Direct chats open only when you both have each other's number saved. If you're not matched yet, Simit tells you why.

How matching works

Group invites with consent

See who invited you, who's in the group, and whether anyone you've blocked is there, before you join.

Group invites

Names stay on your phone

Contact names never leave your phone. Numbers are matched using keyed hashes, and raw address-book numbers aren't stored.

Contact privacy

App Lock

Require Face ID, Touch ID or your passcode to open Simit, with a blurred preview in the app switcher.

App Lock

Reply, edit, delete

Reply to a specific message, fix a typo, or delete a message for everyone, in real time.

Conversations

No ads, ever

No advertising, no third-party analytics SDKs and no tracking across apps. We don't sell your data.

Our privacy promises

Straight talk about encryption

Simit is not end-to-end encrypted. Messages are encrypted in transit with TLS and, while briefly waiting for delivery, are held on our servers in a form our systems can process. Once delivered, they're deleted from our servers. We don't keep your messages, and we can't retrieve ones that have already been delivered.

Why isn't Simit end-to-end encrypted? Instead of encrypting a message archive, we chose not to keep one. While a message waits for delivery, it's on our server in a form our systems can process. Read the full answer.

Pricing

Free for a year. Then less than a dollar.

One simple plan. No ads, no data selling, no tiers.

Why so cheap?

Because we don't store your messages or photos, don't sell data and don't run ads, running Simit costs very little. So we can charge almost nothing, and the people who use Simit are our only customers.

Pricing details

One plan, for everyone

First year freethen US$0.99/year

  • Every feature, from day one
  • Nothing is charged in your first year
  • No ads, and we never sell your data

Your free year starts when you create your account. Settings shows Free until <date>, then US$0.99/year. The yearly subscription will be offered through the App Store before anyone's free year ends; the App Store may show the price in your local currency.

Get Simit Messenger

Private, phone-number messaging for iPhone. Your messages live on your phone, not our servers. First year free, then US$0.99/year. No ads, no trackers.

Download on theApp Store

Requires iPhone. Questions first? Visit Support.