App development

Mobile first quality apps

Our Products

Our Products

In-house development. Improved continuously

Coin portfolio app screenshot

Coin Portfolio

Bitcoin & Altcoin price tracker portfolio for your cryptocurrency investments. Get an overview of your current portfolio value and see the current price, the 24h change and an overview of all your transactions.

Our mission is to make tracking your cryptocurrencies as easy as possible. No Trading pairs needed for trading between different coins.

Investments in cryptocurrencies will grow in the future and local wallets are usually for one or only a handful cryptocurrencies. Sending coins to different marketplaces makes it difficult to track down your invested value. This app helps you to keep an eye of all your transactions and keeps you up-to-date!

Coin Portfolio Website

Our Story

3 friends, one dream

  • ...2016

    Lets do it!

    We ever wanted to create our own startup and i think our time has come!

  • 2016

    TNX Apps is born

    We have lots of product ideas so we decided to startup!

  • December 2016

    We're helping FinTechs

    We helped FinTech startups with their first mobile Apps for iOS & Android

  • January 2017

    Coin Portfolio

    We finally started to work on our first product! We're personally into Cryptocurrencies so we created an app for ourself and thought maybe someone else needs it as well.

  • March 2017

    Coin Portfolio release

    First release on Android and it turned out great! We're getting a lot of traction and many users organically.

  • September 2017

    Coin Portfolio iOS & Web

    We got so much good feedback we decided to work on a native iOS and Web version which we released a couple of month after Android.

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    Of Our

Our Team

We are engineers by heart

Alexander Thiele

Android, Server & Web

Nini La

iOS & Server

Dimitri Lavren√ľk

Web, Full-Stack

You can meet us online world wide and for a beer in Berlin, Cologne and Essen available.

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Contact Us

Don't hesitate to contact us via E-Mail, linkedin or Xing.