3.5
262 reviews
100K+
Downloads
Content rating
PEGI 3
Screenshot image
Screenshot image
Screenshot image

About this app

With Bold, your smartphone is your key. Enter and leave your house with your phone in your pocket; Bold will (auto) unlock and lock your door as you come and go.

Having guests over? Share virtual keys with whomever, whenever. Invite people with the Bold app and activate or deactivate their virtual key. You are the digital key master: give your spouse permanent access, let the plumber in Monday morning and the cleaning lady every Friday afternoon. You decide!

With the highest level of security (think of digital banking-security), your house is safer than ever before. By just replacing the cylinder, burglars will be unable to enter your house using the common techniques.

Bold's simple and elegant design makes your front door look better, your house safer and your life easier.
Updated on
Sep 17, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.4
256 reviews
Darren Kelly
November 21, 2021
Why did you change it? This review is for the app, not the product which is great, I want to make that perfectly clear. So two issues here... 1. having to login again when you want to get through your door because the app has failed 2. Why on earth have you used black text boxes on a black background. When you are outside trying to reload your app and enter in SMS codes YOU CANNOT SEE THEM!! I used another entrance with a key. Poor update.
10 people found this review helpful
Did you find this helpful?
Bold Security Technology B.V.
November 22, 2021
Hi Darren, thanks for your feedback. Our support team is always there to listen and help you. Feel free to contact them anytime. We're currently working on a light mode, which will help you with reading the text correctly.
A G
September 22, 2025
i have been using bold locks for 5 years, best thing i did. started with one door, niw all my house doors have them. i recommend anyone whos looking for smart locks to buy them.
1 person found this review helpful
Did you find this helpful?
Massimo Savona
September 1, 2022
I have the same problem like another person which wrote that he is standing in front of his door and is trying to open it, but nothing happens. Sometimes I'm standing for minutes in front of my door and try to unlock it with the fear that I won't get in. Sometimes I get the message Bluetooth error, but there is no issue with my Bluetooth. It's really annoying. I'm also at the point that I might return it. What use has a keyless lock if the mechanism doesn't work.
8 people found this review helpful
Did you find this helpful?

App support

Phone number
+31850607337
About the developer
Bold Security Technology B.V.
rditerwich@boldsmartlock.com
Leidseveer 2 3511 SB Utrecht Netherlands
+31 6 55877958

Similar apps