TWO-STEP SIGN-IN · ANDROID & IPHONE

Key369
Authenticator

An authenticator for two-step verification: generate one-time codes for your accounts, even offline. Keep your keys in encrypted backups.

Android 11+v1.8.111.27 MB

All features free for 7 daysNo card or automatic charge
PASS369Passkeys
A glowing three-dimensional key for Key369 Authenticator
369Your backup. Your password. Your control.
Codes work offlineEncrypted on your deviceNo ads18 languages

EVERYTHING INCLUDED FOR 7 DAYS

Your everyday login. An extra layer of protection.

Enable two-step verification in your service. After your password, enter a fresh code from Key369 Authenticator.

Your codes, always at hand

TOTP codes are generated on your phone, even offline. Just keep your device date and time accurate.

Personal account369 824
Demo

Add accounts your way

Scan a 2FA setup QR code, choose its image, or enter the secret key manually.

Unlock with your fingerprint

On a compatible Android phone, unlock your vault with your fingerprint or the phone’s PIN. On iPhone, use a separate vault password.

Keep accounts in order

Folders, favorites and themes are included in the trial and PRO. Saved codes remain accessible after access expires.

Backups you control

Export and recovery of encrypted backups remain available after access expires. Keep the file and its password separately.

Your password. Your keys.
KEY369 PRO

New phone. Same keys.

PRO helps you preserve your keys and move them between devices. Cloud backups are encrypted on your phone before upload.

Try PRO free for 7 days

Sign in by email and tap “Start 7 days free”. One trial per verified email across all devices. No card and no automatic conversion to a paid plan.

01

Automatic cloud backups

Enable cloud backup. Encrypted changes upload when online. On iPhone, the app must be open with cloud access unlocked.

02

Sync Android and iPhone

One verified email and a separate backup password. Changes merge after you unlock your vault.

03

30 days of version history

Recover accidentally deleted entries from a previously saved version.

04

Your codes on your computer

A separate Chrome and Edge extension reads your encrypted cloud backup. Manual installation is required.

Extension installation guide

START FOR FREE

More peace of mind. Clear pricing.

All three plans include the same PRO features. Duration, price and payment type differ.

FULL ACCESS

7 days free

₪0for the first 7 days

Sign in by email and tap “Start 7 days free”. One trial per verified email across all devices. No card and no automatic conversion to a paid plan.

  • Offline codes
  • Add accounts without a plan limit
  • Folders, favorites and themes
  • Cloud backups and sync
  • Backup history and extension
Start freeInstall on iPhone
STAY FLEXIBLE

PRO monthly

₪9.90per month

All three plans include the same PRO features. Duration, price and payment type differ.

  • Add accounts without a plan limit
  • Automatic cloud backups
  • Sync across Android and iPhone
  • 30 days of version history
  • Cloud backup for the extension
Start with 7 days free
ONE PURCHASE

PRO lifetime

₪189.90one time

One payment, no renewals. Your purchase stays with your email and can be restored after reinstalling.

  • Add accounts without a plan limit
  • Automatic cloud backups
  • Sync across Android and iPhone
  • 30 days of version history
  • Cloud backup for the extension

Card payments through PayPal
You can pay with a credit or debit card. PayPal will show the available options; a PayPal account may be required.

PRO payments are connected through PayPal. Subscribe in the app after signing in by email.

Monthly and yearly plans renew until cancelled in PayPal; the year is paid in full. Lifetime is one payment with no renewals. The free week never starts charges. Lifetime means a PRO licence without an expiry date for your account. Cloud features are included while the Key369 service operates; it is not a promise that the service will exist forever. Restore with the same verified email. A refund or payment reversal revokes that purchase.

A FEW SIMPLE STEPS

Your first key. Just a few minutes.

Installation help
  1. 1

    Install Key369 Authenticator

    On Android 11+, download the APK. On iPhone, open the web app in Safari, add it to your Home Screen and create your vault from the new icon.

  2. 2

    Sign in and start 7 days

    Sign in by email and tap “Start 7 days free”. One trial per verified email across all devices. No card and no automatic conversion to a paid plan.

  3. 3

    Add a key and save a backup

    Scan the TOTP setup QR from your service. Create a manual backup or enable cloud backups with a separate password.

BEFORE YOUR FIRST LOGIN

Answers, without the jargon.

What does an authenticator do?

An authenticator generates one-time codes for the second step of sign-in. Enter your password on the service’s website, then enter the current code from the app. The service must support TOTP codes and authenticator apps.

Do I need to create an account?

Sign in by email and tap “Start 7 days free”. One trial per verified email across all devices. No card and no automatic conversion to a paid plan.

What happens after seven days?

After 7 days, saved codes, vault protection, export and backup recovery remain available at no charge. Adding accounts, changing folders and themes, and cloud sync require PRO.

Will I be charged after seven days?

No. The trial requires neither a card nor PayPal. You must separately approve a paid subscription. Reinstalling the app does not start another trial.

How do I restore my keys on a new phone?

Cloud recovery requires the same email, your backup password and a previously uploaded backup. You can also import a manual .authbackup file. Signing in alone does not restore deleted keys. The backup password cannot be reset by email.

Which QR codes work?

TOTP setup QR codes from a service’s two-step verification settings. Passkey sign-in QR codes and Google Authenticator bulk exports are not supported. Both 6-digit and 8-digit TOTP codes are supported.

Is there an iPhone version?

Yes. Install Key369 through Safari → Share → Add to Home Screen. It supports offline local codes after the first launch, QR, backups and cloud sync. A separate password protects the vault; Face ID is not connected yet.

What happens to my data?

Keys are stored encrypted. Cloud backup is optional: the server receives encrypted backups and metadata. Your email is used for sign-in, trial access and subscription management. No ads. Aggregate statistics count downloads and launches by platform and version, without keys or a persistent device identifier.

Privacy
My email code worked. Which password comes next?

The email code signs you in to your account. You create a separate cloud backup password in the Android app under Settings → Cloud and sync → Connect cloud backups. It decrypts your keys. Upload a backup from your phone first, then sign in to the extension with the same email and enter that backup password. The email code cannot replace it.

KEY369 · Guides

Two-factor authentication guides

Set up your first account, understand a QR code and prepare a backup before replacing your phone.

START FREELY

Key369 Authenticator. Your codes, under your control.

All features free for 7 days