RadarOpus blog - Synthesis App 2.1!
May 13, 2021

We are proud to announce the latest version of our trusty mobile companion!

The Synthesis App is a lightweight and powerful standalone App for iOS and Android. What's new in Synthesis App v2.1?

Premium features

  • Consult Materia Medica!
    • E.G. Phatak, Boericke & Kent (English)
    • MMs vary depending on App language

Search for any Remedy in:

  • Materia Medica - any of the 3 above
  • The Repertory - define search parameters such as rubric size and remedy degrees
  • A website - such as Qjure, Hpathy or Interhomeopathy - copy a remedy name from Synthesis, then paste into any other App!

Save up to 100 cases (instead of 30)


See how the Synthesis App looks, or click here to visit the Synthesis App Homepage


Shrink Synthesis Repertory into a pocket-sized companion, always to hand when you need it!

The Synthesis App is based on the full Synthesis Treasure Edition, published by Dr. Frederik Schroyens. Synthesis is used worldwide and is known to be a qualitative and reliable repertory

Containing over 2,500 pages, a full remedy list, and advanced search options – the Synthesis App is the best homeopathic repertory app available today! 

Click here to know more


Praise for Synthesis App v2.1

❝Synthesis is hands-down the best modern repertory in homeopathy. This app gets its first 2 stars simply because of the quality of the repertory itself. A little more work could get this app another star."

hartmatthews (from the AppStore)


❝Synthesis Repertory is a contender for the world's top repertory; having it at your fingertips on your iPhone app is historic. As a high-end, professional tool in a niche market, it's priced appropriately. It is easy to use.If you want truly pocket-sized, on-the-go reportization and don't want to be weighed down by a tablet, run, don't walk to get Synthesis English for your iPhone/smartphone. It's the only game in town.

Sir_tom (from the AppStore)

❝I have been using the Synthesis App for some time and of course immediately installed the new version and bought the Premium features. What a fantastic enhancement! A Materia Medica button where three books can be consulted; what an asset. The new Search Button is a godsend for easily finding symptoms by keywords. You can even use it to list all the symptoms that contain a particular remedy! These new features are easy to use and really helpful. I thank you very much for these truly useful improvements.

Willy Kiestra


Watch our 'What's New' Video on Synthesis App 2.1

Screen Shot 2021-05-11 at 16.06.15


To buy the Synthesis App

Search for "Synthesis Schroyens" in your App store & choose the App according to your language preference. 


To buy the premium features of Synthesis App v2.1

  1. First - update your App
  2. Open the App store
  3. Search for "Synthesis Schroyens"
  4. Click Update


The premium features are bundled in a single 'in-app' purchase.

  • Click here to learn about 'in-App' purchases on Android.
  • Click here to learn about 'in-App' purchases on Apple.

Once you install Synthesis App v2.1 you can automatically try all premium features for FREE up to 40 times!

  • Once you have used your 40 free try-outs, the App will send a prompt to check if you would like to purchase the premium features for a single payment of €29.
  • Or you can go to 'My profile' and click on the icon 'Purchase premium features'