1 класс СССР. Советские учебники is an Android application developed by Softetix. It falls under the Education & Reference category and the Books subcategory. The app is free to download and provides access to a collection of 48 textbooks used in Soviet schools from 1922 toThe textbooks cover a wide range of subjects such as math, language, science, and art.

The app includes some well-known textbooks such as "My First Alphabet" and "Mathematics Problem Book." Upon the first launch of the app, the textbooks will be downloaded, ranging in size from 1 MB to 23.8 MB. Additionally, the developer has a separate app that includes a collection of 27 Soviet-era alphabet and primer textbooks. This app is available by searching for "Azbuiki i Bukvari SSSR" in the app store or by looking under the "other apps by the developer" section.

Overall, 1 класс СССР. Советские учебники is a great resource for those interested in Soviet-era education or for those looking to supplement their child's education. However, the app is only available in Russian, so non-Russian speakers may not find it useful.