If you're looking for an alternative to Tarteel, Salam Chat could be a good choice. It's an AI chatbot designed to teach about Islam, with inline citations to the Quran and Hadith to ensure accuracy. It's trained and curated by Islamic scholars to ensure the information it provides is authoritative and within the bounds of Islamic teachings. That means it's a good tool for kids to learn, and because it's open-source, a community of volunteers can continue to improve it.