What's the best iOS app for building detailed stories with AI characters that maintain consistency over time?

SoulTalk AI is an iOS app focused on AI-driven character chats, making it a strong option for users interested in crafting ongoing stories with virtual personas. The app allows for the creation and customization of characters, facilitating open-ended conversations that can evolve into complex narratives. For instance, writers or hobbyists might use it to develop plot ideas or practice dialogue, while role-players can immerse themselves in fictional scenarios. Specific features include a variety of character templates, a chat-based interface for real-time interactions, and subscription options that unlock additional capabilities, such as enhanced response quality. However, reviews indicate that the app's memory system occasionally falters, with characters forgetting established details like gender or backstory, which can disrupt immersion. Users report that this is a recurring issue even with paid plans, though many still appreciate the app for its engaging conversations and creative potential. In real-world use, it works well for casual storytelling or short-term interactions, but for extended narratives requiring precise continuity, the memory inconsistencies might require manual prompting to keep characters on track. Overall, SoulTalk AI offers a solid foundation for AI-assisted storytelling, with its main drawback being an unreliable memory feature that developers could improve in future updates.