HammerAI vs Inkstone
HammerAI
hammerai.comInkstone
getinkstone.comSide by side
| Figure | HammerAI | Inkstone |
|---|---|---|
| Price from | $9/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 10 | 2 |
| Spec score · AI Roleplay Chatbots | 9.2 (#4) | 8.5 (#22) |
| Lorebooks | Lorebooks provide dynamic memory for world facts and story context. | Lorebooks dynamically add entries to prompts when their trigger terms are matched. |
| Notable news | Release notes dated July 18, 2026 announce local Piper or Kokoro text-to-speech and new image-generation providers. | The July 2026 dispatch said Ko-fi cancellations temporarily made Inkstone premium themes unavailable and that a future premium tier with features such as autobackups and syncing was being considered. |
| Privacy | The privacy policy says HammerAI does not collect information about conversations, while third-party AI providers may process or retain messages sent to them. | The maker says the app has no telemetry, usage tracking or relay server and cannot access users' conversations. |
| Product | HammerAI describes itself as an AI character chat and roleplay platform. | Inkstone is a local-first AI roleplay app that stores chats, characters, lorebooks, and settings on the user’s device and connects to a chosen model provider for generation. |
| Public API | ToolPilot lists HammerAI's API as unavailable, although the product can connect to external model APIs through proxy configuration. | The documentation describes Inkstone as an API client for external providers and does not document a public Inkstone API or SDK. |
| Support | Users can submit feedback in-app or contact HammerAI through Discord, Twitter, Reddit, and TikTok. | The maker directs users to Discord for questions, feedback, bug reports, and community discussion. |
| What it does | HammerAI provides AI character roleplay, interactive story writing, image generation and text-to-speech. | Inkstone is a local-first AI roleplay application for chatting with characters, building worlds and writing stories while using an AI provider selected by the user. |
Plans
HammerAI
- FreeFree
- Tiny credit pack$1.99, paid once
- Small credit pack$4.99, paid once
- Starter$9 a month
- Medium credit pack$9.99, paid once
- Advanced$18 a month
- Large credit pack$19.99, paid once
- Ultimate$35 a month
- Mega credit pack$49.99, paid once
- Ultra credit pack$99.99, paid once
In their own words
HammerAI
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.