App Design & Development

Cobalt Sign | The Chemistry of Apps

Cobalt Sign is a small app design and development company based in Timisoara, Romania.

We like to take a meticulous approach to creating quality apps, starting from just an idea, to launch.

We specialize in building native mobile apps for iOS and Android using Swift & Kotlin or React Native, with focus on UX and good communication.

Our own app "Ready Set Holiday!", a B2C travel planner, has over 2 million downloads and a rating of over 4.5 stars.


$25 - $49 / hr
10 - 49
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Timisoara, Romania
  • Blvd. Republicii 6, 2nd Floor
    Timisoara, TM 300002


Ready Set Holiday! Image

Ready Set Holiday!

"Ready Set Holiday!" is our own app, a stylish and useful travel companion. It is available for iPhone and Android in multiple languages and has over 1.5 M downloads and 50 K daily active users.

It has a beautiful, custom design and a comprehensive set of features: weather, countdown, tours and activities, checklist with reminders, social media integration, flights and hotels, inspiration blog.

We are proud of

"Ready Set Holiday!' and enjoy working on it.