HammerAI vs Plotto

HammerAI is an AI character chat and roleplay platform for chatting with characters, writing stories, generating images, and creating group chats, lorebooks, and personas. It is available on the web, Android, iOS, Linux, macOS, and Windows. Its desktop app runs local models through Ollama, supports 20+ LLMs, and can use an Ollama Modelfile. After models are downloaded, local-model use works offline; cloud LLMs, image generation, and text-to-speech need an internet connection. Mobile apps store chats and characters on-device by default. HammerAI says it does not collect information about conversations or use user content to train or fine-tune its models, though third-party AI providers may process or retain messages sent to them. The free plan includes 600 cloud messages per day. Paid subscriptions start at $9 a month, and unused subscription credits expire at the end of each billing period. The service is for people at least 18 or the local age of consent, whichever is greater, and filters content including self-harm encouragement, graphic violence, and hate speech.

Plotto is an AI character chat and interactive story platform available through a web app and iOS and Android apps. Users can have one-on-one conversations with a standalone character or enter story rooms where characters and users interact. Friends may take vacant roles in eligible rooms. Character creation includes settings for personality, voice, secrets, appearance, backstory, relationships and opening messages. The community side includes posts, private messages, group chats, user-created groups and live voice rooms. Characters can respond with images, and supported controls can read their text aloud. Plotto offers scenario templates and persistent memory. Its Basic story-room AI chat plan costs nothing and has no message fee or limit, although other actions may use coins or require payment. Eligible public characters and scenarios can earn in-app coin rewards when other users experience them. The website offers English, Simplified Chinese, Traditional Chinese, Japanese, Korean, Indonesian and Malay. Adult-oriented roleplay is limited to eligible users aged 18 or older where permitted. The mobile application may collect IP address, app usage, operating system and approximate location data.