Freemium
AnythingLLM
Knowledge Base
Open-source app to chat with your docs using any LLM
Open-source RAG app: drop in docs, pick any model, chat locally or in the cloud.
Knowledge BaseAI Open Source
ALTERNATIVES
Best Heyday alternatives
AI tools that cover similar ground to Heyday, sorted by relevance. Use the table for a quick pricing and category check, then click through for details.
Updated 2026-10-22
| Tool | Pricing | Categories | Best for |
|---|---|---|---|
| AnythingLLM | Freemium | Knowledge Base / AI Open Source | Open-source app to chat with your docs using any LLM |
| 橙篇 | Freemium | Knowledge Base / Writing | Baidu Wenku's long-form AI writing and document Q&A assistant |
| Glean | Paid | Knowledge Base / AI Search | Enterprise AI search and assistant across all company apps |
| Guru | Freemium | Knowledge Base / Collaboration | Verified knowledge cards surfaced where your team works |
| ima.copilot | Free | Knowledge Base / AI Search | Tencent's knowledge-base copilot that searches and remembers |
| Personal AI | Freemium | Knowledge Base / AI Agents | A personal AI trained on your own memories and knowledge |
| Slite | Freemium | Knowledge Base / Collaboration | Team docs with an AI that answers from your knowledge |
| Tettra | Freemium | Knowledge Base / Collaboration | AI-powered internal wiki for small and mid-size teams |
How we picked these alternatives
We only include tools that share at least one category with Heyday. Ordering is relevance-based, not paid: featured tools first, then the rest of the category.
Freemium
橙篇
Knowledge Base
Baidu Wenku's long-form AI writing and document Q&A assistant
Baidu Wenku's AI assistant for long-document Q&A, research and long-form writing.
Knowledge BaseWriting
Paid
Glean
Knowledge Base
Enterprise AI search and assistant across all company apps
Enterprise AI search unifying company apps so employees find answers in natural language.
Knowledge BaseAI Search
Freemium
Guru
Knowledge Base
Verified knowledge cards surfaced where your team works
Knowledge management with verified cards accessible across browser and chat tools.
Knowledge BaseCollaboration
Free
ima.copilot
Knowledge Base
Tencent's knowledge-base copilot that searches and remembers
Tencent's AI knowledge copilot combining web search, doc Q&A and a growing personal library.
Knowledge BaseAI Search
Freemium
Personal AI
Knowledge Base
A personal AI trained on your own memories and knowledge
Trains a personal model on your own memories and docs that can answer on your behalf.
Knowledge BaseAI Agents
Freemium
Slite
Knowledge Base
Team docs with an AI that answers from your knowledge
Lightweight team knowledge base whose Ask feature answers from your docs with citations.
Knowledge BaseCollaboration
Freemium
Tettra
Knowledge Base
AI-powered internal wiki for small and mid-size teams
Internal wiki whose AI bot answers team questions in Slack from your docs.
Knowledge BaseCollaboration
Freemium
语雀
Collaboration
Ant Group's knowledge base with AI writing
Structured team knowledge base from Ant Group, now with AI writing and polishing.
CollaborationKnowledge Base
Free
知乎直答
Knowledge Base
Zhihu's AI answer engine grounded in creator content
Zhihu's AI Q&A engine built on its creator knowledge, with personal library support.
Knowledge BaseAI Search
Freemium
Ubblu
Knowledge Base
Ubblu — Knowledge Base powered by AI
Ubblu is an AI Knowledge Base tool listed in our directory. See the official site for current features and pricing.
Knowledge Base
Free
话袋AI笔记
Knowledge Base
话袋AI笔记 — AI Knowledge Base tool
话袋AI笔记 is a AI Knowledge Base product. Visit the official website for the latest capabilities and plans.
Knowledge BaseProductivity
Freemium
Superflow
Coding
Superflow: AI Coding tool
Superflow focuses on development in the Coding space. See the official website for current capabilities and availability.
CodingAI Design
Free
脉络洞察AIGC
Healthcare
脉络洞察AIGC — Healthcare powered by AI
脉络洞察AIGC is an AI Healthcare tool listed in our directory. See the official site for current features and pricing.
HealthcareKnowledge Base
Freemium
BetterYeah 企业级AI智能体
AI Agents
BetterYeah 企业级AI智能体 — AI Agents for AI agents, knowledge bases
BetterYeah 企业级AI智能体 focuses on AI agents, knowledge bases in the AI Agents space. See the official website for current capabilities and availability.
AI AgentsKnowledge Base
Freemium
Gold Retriever
Knowledge Base
Gold Retriever: AI Knowledge Base tool
Gold Retriever focuses on open source in the Knowledge Base space. See the official website for current capabilities and availability.
Knowledge BaseAI Open Source
Freemium
SuperAGI
Coding
SuperAGI — AI Coding tool
SuperAGI is listed in our Coding directory. Features and pricing may change, so verify on the official site.
CodingAI Dev Platforms
Freemium
ParagraphAI
Writing
ParagraphAI: AI Writing tool
ParagraphAI focuses on writing in the Writing space. See the official website for current capabilities and availability.
WritingMarketing
Freemium
SumiNote
Knowledge Base
SumiNote — AI Knowledge Base and generation, learning
SumiNote is a AI Knowledge Base product. Its main use cases include generation, learning. Visit the official site for the latest plans.
Knowledge BaseAI Chat
Freemium
Mirage ML
3D Generation
Mirage ML — 3D Generation powered by AI
Mirage ML focuses on design, 3D in the 3D Generation space. See the official website for current capabilities and availability.
3D GenerationAI Design
Freemium
讯飞星火知识库·文档问答
AI Chat
讯飞星火知识库·文档问答 — AI Chat and document processing, analysis
讯飞星火知识库·文档问答 is a AI Chat product. Its main use cases include document processing, analysis. Visit the official site for the latest plans.
AI ChatDocument AI
Paid
中智标策
Writing
中智标策: AI Writing powered by AI
中智标策 is a AI Writing product. Visit the official website for the latest capabilities and plans.
WritingKnowledge Base
Freemium
Prompta
Knowledge Base
Prompta — AI Knowledge Base tool
Prompta is listed in our Knowledge Base directory. Features and pricing may change, so verify on the official site.
Knowledge BasePrompts
Free
百度智能云千帆AppBuilder
Coding
百度智能云千帆AppBuilder — AI Coding and development
百度智能云千帆AppBuilder is a AI Coding product. Its main use cases include development. Visit the official site for the latest plans.
CodingAI Open Platforms
More alternatives (76)
- ThinkAnyFreemium
- 播记Freemium
- ObsidianFree
- YouMindFree
- 得到大脑(原Get笔记)Freemium
- 如知AI笔记Freemium
- CrafterFreemium
- Aoyo.aiFreemium
- VoicenotesFreemium
- PandaWikiFreemium
- 今天学点啥Freemium
- 醒文Freemium
- HyperagentFreemium
- MemFreeFree
- 钉钉个人版Freemium
- AskCcPaid
- WaytoAGI-通往AGI之路Free
- Active Recall AIFreemium
- BenTsao本草Freemium
- DraGanFreemium
- Mem.aiFreemium
- SFR-RAGFreemium
- Reflect AIFreemium
- remioFreemium
- 腾讯元器Freemium
- 讯飞晓医Paid
- WhismerFreemium
- KuseFree
- GetyFreemium
- 小飞雁 | Jet GooseFree
- 氢刻AIFreemium
- Nimo.spaceFreemium
- AI BrainFreemium
- TanaFreemium
- Copilot HubFreemium
- ppwordFreemium
- 喵记多Freemium
- 得到大脑 – 网页版Freemium
- FlowUs息流Freemium
- MocCardFreemium
- 知周AI笔记Freemium
- Aisou.aiFreemium
- 稿定公文AIFreemium
- 云知声山海大模型Freemium
- RecallFreemium
- Sana LabsFreemium
- AnyGenFreemium
- Dify AIFree
- Cardify卡片工坊Freemium
- Receipt AIFreemium
- 闪念贝壳Freemium
- NotebookLMFreemium
- WordToCardFree
- AI DiaryFreemium
- TicNotePaid
- Flowith 2.0Freemium
- 小绿鲸英文文献阅读器Freemium
- DeepSeekFree
- KimiFree
- Candy.aiFreemium
- ChaiFreemium
- ChatboxFreemium
- Cherry StudioFree
- CrushOn.AIFreemium
- 豆包Free
- EarkickFree
- ElliQPaid
- 文心一言Freemium
- 飞猪Free
- 腾讯混元Freemium
- 讯飞星火 SparkDeskFreemium
- KindroidFreemium
- LobeChatFreemium
- 同程旅行Free
- 猫箱Freemium
- 医联Freemium