Siddur & Tehilim סידור ותהילים is a comprehensive prayer app available on Android. Developed by Zmanim Diffusion, this free app is categorized under the Education & Reference section and belongs to the Books subcategory. It is the only complete siddur available, containing all the prayers and additions of a "regular" siddur. The app can be used in conjunction with other siddurs, but it is the only one that is truly complete. Additionally, it includes Tehilim, which is divided according to the days of the month.

The app is now compatible with Android 5.0 and has a better font. However, it contains voweled Hebrew letters, which are not supported by older versions of Android unless the phone was purchased in Israel. The Shabbat and Yom Tov prayers are included only for reference and educational purposes, and should not be read on Shabbat and/or Yom Tov. The app is an excellent tool for those who want to learn and practice Jewish prayers and blessings, and it is highly recommended to download the Tefilin app as a supplement.