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UsualBook

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Last updated: 15 October 2026

Who we are

UsualBook is a product of Ertech Yazılım ve Bilgi Teknolojileri Limited Şirketi, a limited company registered in Türkiye.

Legal name
Ertech Yazılım ve Bilgi Teknolojileri Limited Şirketi
Trading as
UsualBook
Registered address
İdealtepe Mah. Dik Sk. No: 13 İç Kapı No: 2, Maltepe / İstanbul, Türkiye
Tax number
7990922811 (Küçükyalı Tax Office)
Email
hello@usualbook.com
Website
usualbook.com