Kol Yaakob Siddur is the official Sephardic Daily Prayer Book based on the customs from Aleppo, Syria.

Concept by Bert I Dweck & Adam Dweck and developed by United Holdings Group on behalf of the Sephardic Heritage Foundation.

The Kol Yaakob Siddur App features a full Table of Contents and is complete with all prayers for the entire year including prayers for Weekdays, Holidays, Marriage Ceremony as well as many other Special Occasions and Various Blessings.

It is strictly forbidden to pray from, operate or reference the Kol Yaakob Siddur App on Shabbat and all the other religious observant Holidays.