Your Smart Home Starts at the Front Door. Add secure, keyless entry to your home with an SIMSIM for the front door.

Manage your property from anywhere

Control is now in your hands. With our lockn app, grant access to visitors even when you are away from home. Have multiple SIMSIMs? - our app manages all of them.

Make home access safer and smarter

With SIMSIM, be assured that only the ones you welcome can enter your home. Time-sensitive PIN codes and bluetooth keys let you decide how long you want to allow access for.

Convenience of keyless access

No more hassle of locating forgotten keys and replacing missing ones. No more frustration of accidental lock-outs. No more fumbling for keys. It’s fuss-free living.

Multiple entry modes

Unlock with a PIN, or using your SMART PHONE. Different modes of entry are offered for flexibility of access. The physical key is still available as a back-up.

View access logs

Track the dates and times at which visitors enter your home. Greater visibility on access brings you greater peace of mind.


Bluetooth Unlocking

With our latest chip enhancements, unlocking via bluetooth key is even quicker than before.

Privacy Mode

Activate this from indoors to prevent electronic entry from the outside.

Auto Lock

Select the duration (in seconds) before the lock automatically locks, regardless of how it was unlocked.


Add a trusted friend as admin and allow them to add or remove guests on your behalf.

Emergency Power Supply

When lock batteries are flat, an external DC9V battery can be used to jump-start the lock.

Building Access Management System

Pro Users have access to our advanced Building Access Management System which can be used to access all the SIMSIMs.

Our Journey

Every innovation has a small story of adventure behind it. So do we!

  • Dec 2017

    Our Humble Beginnings

    Our story began when our founders were sharing a room and had only one key between them. They have understood the pain involved in sharing the key in a secure way.

  • March 2018

    SIMSIM v1 is Born.

    After facing the problem our founders went on to build a sercure way to share your key with anyone and to keep track of who have accessed your home. Thus SIMSIM version1 is born.

  • April 2018

    Our First customer

    Commut a leading mass transit service provider started using SIMSIM v1 as new way to share keys with their employees.

  • Jul 2018


    SIMSIM final version launched.

  • Be part
    of our

Our amazing team

Tharun Reddy Chinthala

Tharun Reddy Chinthala


A devout manga follower and an alumnus of IIIT Hyderabad, Tharun loves to seek simple solutions for complex problems.

Krishna Teja

Krishna Teja


KT is a graduate from IIIT Hyderabad.

Our aim is to replace the hassle of sharing physical key with smart access system with out the fear of loosing the key.