diff --git a/README.md b/README.md
index 063a7d1..87a7d0f 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,16 @@ Basically it is a combination of screen capture, OCR and translation tools.
 
 ## Installation
 
+There are 2 versions of the app: general and `compatible`.
+They all share the same functionality.
+The `compatible` version does not use some hardware optimizations,
+but allows the app to be run on elder hardware.
+
+At first, download general version (without any suffixes in
+the downloadable archive's name).
+If the app will silently crash during its work,
+then try the `compatible` version.
+
 **Windows**: download archive from [github releases](https://github.com/OneMoreGres/ScreenTranslator/releases) page, extract it and run `.exe` file.
 
 If the app fails to start with missing dll's error then install `vs_redist*.exe` from the release archive.