Yansu vs Dreamer
Dreamer builds autonomous AI agents that execute tasks. Yansu builds complete, visual applications that your team can use -- proactively, from observed work patterns.
Last updated: March 2026. Yansu is made by Isoform. This comparison is based on publicly available information.
| Feature | Yansu | Dreamer |
|---|---|---|
| Output type | Complete applications -- React + TypeScript with backend | Autonomous agents that execute tasks |
| Code ownership | Local, exportable -- code lives on your device | Locked in -- proprietary platform, no export |
| Initiative | Proactive -- observes and builds without prompting | Reactive -- requires prompts to create agents |
| Platform | Desktop native (macOS, Windows, Linux) | Cloud-hosted only (desktop, iOS, Chrome extension, email) |
| Privacy | Local-first -- data on your device | Cloud-hosted, proprietary infrastructure |
| Work pattern learning | Yes -- persistent AI memory | No -- agents are manually configured |
| Messaging integrations | 7 platforms (Slack, Teams, Discord, etc.) | None as input channels |
| Compliance | SOC 2 Type II + ISO 27001 | Not disclosed |
| Free tier | Yes -- free tier with limited usage | Not publicly disclosed |
| Pricing model | Free + subscription ($20/mo Pro) | Revenue sharing with tool creators |
What is Dreamer?
Dreamer is an AI agent-building platform that lets users create autonomous agents via natural language prompts rather than building conventional web or mobile applications. The platform centers on "Sidekick," a personal agent that assists in creating and configuring other agents. Dreamer provides hosted infrastructure, removing the need for users to manage databases or API keys, and includes a community gallery where agents can be remixed and cloned. Agents run across desktop, iOS, Chrome extension, and email, and the platform supports self-modifying agents that can spawn sub-agents for complex workflows. Dreamer launched its open beta in February 2026. In March 2026, Meta acquired the founding team in an acqui-hire, with the technology licensed into Meta's Superintelligence Labs division. Dreamer's pricing was not publicly disclosed prior to the acquisition; the platform operated on a revenue-sharing model with tool creators rather than a conventional subscription.
What is Yansu?
Yansu is a proactive AI application builder by Isoform that observes how you work, learns your patterns, and autonomously builds custom applications before you ask. Unlike tools that require prompting, Yansu runs in the background as a native desktop application on macOS, Windows, and Linux, continuously monitoring your desktop activity and messaging conversations across seven platforms including Slack, Microsoft Teams, Discord, Telegram, WhatsApp, Feishu, and WeChat. When Yansu identifies an opportunity to save time or reduce friction, it generates a complete working application called a "crystal" -- a React and TypeScript project with optional backend, real data integrations from over 65 sources via OpenCLI, and native desktop window deployment. Yansu automatically selects the best AI model for each task from Claude, GPT, Gemini, and others. All data stays on your device with SOC 2 Type II and ISO 27001 certification. The free Basic tier includes limited daily chats and core features.
Key Differences
Applications vs Agents
The most fundamental distinction between Yansu and Dreamer is what they produce. Dreamer creates autonomous agents -- background processes that receive instructions, execute tasks, and report results. An agent might monitor a news feed, draft a weekly summary, or trigger actions in other services. Yansu creates complete applications -- visual, interactive tools with user interfaces, real data integrations, and persistent state that your team opens and uses. A Yansu application might be a unified project tracker pulling from Jira, Notion, and Slack, or a competitor monitoring dashboard that refreshes from 65+ live data sources. Agents and applications serve different purposes: agents are best for repeatable background execution, while applications are best for collaborative, interactive workflows that teams return to daily. Yansu builds the latter proactively, without requiring you to describe what to build.
Code Ownership
Yansu applications are React and TypeScript projects that live on your device in the ~/.yansu-agent directory. You can open, inspect, modify, and export any generated application at any time. There is no vendor lock-in -- the code is yours. Dreamer agents exist entirely within Dreamer's proprietary platform. There is no code export and no self-hosting option. All agent logic, configuration, and data lives on Dreamer's infrastructure. For teams with compliance requirements, data sensitivity concerns, or a preference for owning their tooling, Yansu's local-first approach provides substantially stronger guarantees. With the Dreamer team's March 2026 acquisition by Meta and the technology licensed into Meta's Superintelligence Labs, the long-term availability and independence of the Dreamer platform as a standalone product is an open question that teams should factor into any build-vs-buy decision.
Proactive vs Reactive
Dreamer requires you to initiate agent creation: you describe the agent's purpose, configure its behavior, and deploy it. The system is reactive -- it responds to your instructions. Yansu operates differently. It runs in the background, monitors your work across the desktop and seven messaging platforms, identifies recurring friction points and opportunities, and generates applications to address them without waiting to be asked. A team that repeatedly cross-references spreadsheet data in a Slack channel would find Yansu building a dedicated lookup tool before anyone thought to request one. This distinction matters most for non-technical users and busy teams: Yansu eliminates the step where you need to recognize a need, articulate it precisely, and spend time configuring a solution. The tool arrives because Yansu observed that you needed it.
Pricing Comparison
Pricing as of March 2026. Check each product's website for current pricing.
| Plan | Yansu | Dreamer |
|---|---|---|
| Free | $0 -- Basic tier with limited daily chats | Not publicly disclosed |
| Pro / Individual | $20/mo -- managed AI agent, cloud execution | Revenue sharing model -- no fixed published price |
| Business / Max | $200/mo -- 5x Pro usage | Not disclosed |
| Enterprise | Custom -- shared team memory, SSO/SAML | Not disclosed |
When to Use Each
Use Dreamer if you...
- Need background agents that execute recurring tasks automatically
- Want to build agent workflows without managing infrastructure
- Are comfortable with cloud-hosted, proprietary tooling
- Need agents that operate across desktop, iOS, Chrome, and email
Use Yansu if you...
- Want complete interactive applications built proactively from your work patterns
- Need privacy-first, local data that never leaves your device
- Work across Slack, Teams, Discord, or other messaging platforms
- Need apps that pull from 65+ real-world data sources
- Want to own your generated code with no platform lock-in
- Need SOC 2 + ISO 27001 compliance