Innovate mobile Security!

Shift the focus from boundaries to the center: THE DATA


iPhone and Android apps, Restful APIs, Web, etc.

SecureBeam App

the smart way to connect your clouds securely

SecureBeam combines all your personal cloud storage accounts to the biggest and safest place in the web. SecureBeam encrypts and splits each single file right on your smartphone and distributes the data chunks to different cloud storages.

expressFlow delivered an innovative mobile security app with award winning encryption technology. SecureBeam was developed natively for mobile platforms Android and iOS and for Windows and Mac OS X Desktops.

expressFlow combined innovative UX with top-notch and performant security approaches. A combination that is absolutely unique!

More info

Responsive, stylish Website

Bootstrap-based responsive One-Page application

The SecureBeam website is a SSL-secured, performance optimized project website to communicate the concept of the mobile security application SecureBeam right to the point: Simplicity!

expressFlow developed and maintained the SecureBeam website based on the popular web-framework Bootstrap.

Beyond the technical realization of the SecureBeam website, expressFlow optimized the search-engine indexing for SecureBeam to optimally align the mobile security application with the need of the audience: the simple and secure combination of popular cloud-storage services like Dropbox, Google Drive and OneDrive.

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TapKey App

The smart way in

Tapkey is proud to be leading the digital access revolution. The company is committed to making it surprisingly easy and convenient for people to instantly and securely control locks of all kinds with just their smartphone or even chip-enabled credit card.

At the same time, Tapkey makes it surprisingly easy, efficient, and profitable for all of channel partners—from lock-makers to hospitality chains and more—to reduce costs and increase productivity by easily integrating and securely delivering this empowering and liberating technology to their end users, whether they’re hotel guests, car renters, office workers…

or anyone who has ever used a conventional lock and key.

More info ❯

Secure Push

Native secure push notifications for latest iOS and Android platforms!

The secure push technology implemented by expressFlow enables mobile apps for Android and iOS a secure push messaging integration right from a cloud-based backend. This means: Fully flexible, highly scalable, industry-strength security for realtime messaging. Available right for your next great app.

The secure push SDK enables app developers to integrate public-key based cryptomodules for their realtime messaging app - in a couple of minutes!

Build an encrypted chat in just 10 minutes for iOS and Android! We already pepared your backend!

Get the SDK ❯

Lean development

we consequently adopt lean software development

we adhere to the lean software development principle: After a short Build-phase we evalute the user feedback and extend the existing app consequently to a full-fledged, innovative product.

We support you throughout the whole development lifecycle and are open to share all our experience introducing apps to new markets. We focus entirely on the customer and her success.


About Us

We love what we do

How we work

We are a young and motivated team striving for the newest technology and exciting projects.

We create mobile security solutions out-of-the-way. Let's re-create a secure and efficient way to work. Mobile. Now. Here!

Think beyond these old passwords! Imagine encryption technologies, that effectively protect our data. Just as it is. And where-ever it is.

Say hello!

Mobile: (650) / 814-4139


Let's connect

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Award-winning technology

Great partners analyzed our technology in-depth

We are hiring!

Join our team and dream big

Open positions

Frontend Engineer