nowfound

Alternatives

Products that do what SimUser AI does

AI beta testers that explore your app like real users

  1. 1AT

    Hi HN community! We want to share AI-town, a deployable starter kit for building and customizing your own version of AI simulation - a virtual town where AI characters live, chat and socialize. Inspired by great work from the Stanford Generative Agent paper (https://arxiv.org/abs/2304.03442). A few features: - Includes a convex.dev backed server-side game engine that handles global state - Multiplayer ready. Deployment ready - 100% Typescript - Easily customizable. You can fork it, change character memories, add new sprites/tiles and you have a custom AI simulation…

    2023 · github.com

  2. 2
    Skippr AI295

    The live AI employee inside your product, serving every user

    Jul 2026 · skippr.ai

  3. 3
    Sim584

    Open-source workspace for AI agents and workflows

    Jul 2026 · sim.ai

  4. 4

    Test your AI apps with thousands of digital humans

    2025

  5. 5
    TestAI407

    1,000+ automated tests for AI agents in one click

    2025

  6. 6
    Uxia548

    Validate your User flows UX & UI in seconds with AI

    Sep 2025

  7. 7WS

    Hi HN! We’re Max and Peyton from The Interface (https://www.theinterface.com/). We started out building an AI agent dev tool, but somewhere along the way it turned into Sims for AI agents. Demo video: https://www.youtube.com/watch?v=sRPnX_f2V_c. The original idea was simple: make it easy to create AI agents. We started with Jupyter Notebooks, where each cell could be callable by MCP—so agents could turn them into tools for themselves. It worked well enough that the system became self-improving, churning out content, and acting like a co-pilot that helped you…

    2025 · youtube.com

  8. 8

    AI users to test your app, catch bugs, and give feedback

    2025

  9. 9

    The AI user research agent for busy product teams

    Dec 2025 · userology.co

  10. 10

    Turn your smartphone into UX lab for mobile user testing 📱

    2019

  11. 11

    Online platform for remote user tests

    2020

  12. 12

    Measure the full AI SDLC. From token to production.

    Apr 2026 · waydev.co

  13. 13

    Autonomous QA agents that explore your app like users do

    Apr 2026 · marketrix.ai

  14. 14

    First AI agent for deep website monitoring

    2025

  15. 15

    Deploy AI agents to use your production app like a real user

    Jan 2026 · papercuts.dev

  16. 16

    Turn your website into an AI agent with one script tag.

    Feb 2026 · rover.rtrvr.ai

  17. 17
    Snap212

    Instant usability testing with AI personas

    Oct 2025

  18. 18
    Manta AI148

    Your AI agent for autonomous web app testing

    Jul 2026 · mantaai.co

  19. 19

    No one’s got money for another AI subscription. So we made our browser agent totally FREE. What's the catch? Just ads while Retriever AI fetches you leads, does your exams, applied to jobs, and sends connection requests. Think like a Claude Code or Clay level tool in your browser, but free for everyone! After 35K+ users and 7M+ workflows, we spent the last few months attacking the cost of every agent step: - switching to DeepSeek Flash - Code Mode to one shot complex workflows - optimizing for 80%+ token cache hits So that now just an ad impression covers the entire cost of the agent (LLM…

    2025 · rtrvr.ai

  20. 20
    Simulai27

    AI users that test your AI agents

    2025

  21. 21
    Qagent152

    Skip manual testing your web application. Let AI do the work

    2025

  22. 22
    Qwarm73

    Write tests in plain English AI agents run them in browsers

    Feb 2026 · qwarm.ai

  23. 23
    Krater107

    All the AI tools you use, one subscription

    May 2026 · krater.ai

  24. 24
    AI User26

    AI users that test your app and automate QA

    2025

Ranked by how close each launch is in meaning, then by votes. Refine with a description →