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MySunday vs v0

v0 by Vercel is “an AI agent that helps anyone create real code and full-stack apps and agents”, with one-click deploys to Vercel.

MySunday lets you point at a paragraph, a cell or a slide in Google Docs, Sheets and Slides, or at your web app, and say what you want. It answers, edits the document once you confirm the steps, or hands the change to the coding agent you already use. They do different jobs, and many people will want both.

v0

What v0 is best at

  • Generating UIs and full-stack apps from a prompt, a mockup or a template, then publishing them to Vercel in one click.
  • Importing a GitHub repository into a Vercel Sandbox, with a working branch and pull requests per chat.
  • Design mode: select an element in the live preview, adjust it visually or in words, and apply it to the code.
  • Design systems, templates, and prompts you can type or dictate.

MySunday

Where MySunday fits

  • MySunday runs on your Mac against the app you already serve on localhost, in your own Chrome.
  • Your own Claude Code or Codex makes the edits, and MySunday checks the page against what you pointed at after each change.
  • You can point at any live site in another tab as the reference for a change.
  • It is not only for code: in Google Docs, Sheets and Slides, point at a paragraph, a cell or a slide and say what should change. MySunday shows the steps and changes nothing until you confirm them, with no coding agent needed.

Both

Use them together

  • Generate a new screen or app in v0, push it to GitHub, then refine it in your local codebase with MySunday and your own agent.
  • Keep v0 for fast starts and Vercel deploys; use MySunday for the day-to-day polish on your machine.

Side by side

The facts, briefly.

Each v0 fact links to the page on its own site where we read it.

v0 and MySunday side by side
Comparedv0MySunday
What it isAI agent for building apps, with one-click deploys to Vercel [source]Point at something and say what you want. In Google Docs, Sheets and Slides, MySunday answers questions about it, or makes the edit once you confirm the steps, with no coding agent. On your web app, the coding agent you already use makes the change. It is not an editor and does not write code itself.
InputText prompts (voice can be dictated into the prompt), images and files, and Design mode for selecting elements [source]Voice: open microphone by hotkey, wake word or gesture, or a floating icon; pointing at elements in Chrome and at boxes in Mac apps; and typed text
Works on your existing codebaseYes: import a GitHub repository; it runs in Vercel Sandbox and each chat works on its own branch [source]Yes. It works on your running app on localhost and maps it to the repository on your Mac
AI agent and modelv0 models (Mini, Pro, Max and Max Fast), priced per token [source]On your web app, your own Claude Code or Codex, on your own subscription, does the edits. Questions, and edits in Google Docs, Sheets and Slides, use MySunday’s own AI, with no coding agent
Checking the resultv0 says it can “automatically fix errors in your code with intelligent diagnostics” [source]After every change it recaptures the page (screenshot and DOM), replays interactions you copied from a reference, retries automatically and shows you a verification report
Where your code livesIn v0, with GitHub sync; imported repositories run in Vercel Sandbox [source]In your repository on your Mac; your agent edits it there
PlatformsWeb, plus an iOS app [source]macOS 14 Sonoma or newer on Apple silicon, with the extension for Google Chrome
PricingFree plan with $5 of monthly credits; Plus $30 per user/month with $30 of monthly credits; Business and Enterprise plans [source]Individual $2/month; Teams $20/month per workspace, unlimited users; both include plan credit. Your Claude Code or Codex runs on its own subscription. Trial (Individual accounts only): a free trial, its length and trial credit as shown on the pricing page when you start

FAQ

Questions

Can MySunday work on code v0 generated?

Yes. Once the code is in your GitHub repository and running on your Mac, point at it in Chrome and MySunday sends the change to your agent.

Both have a way to select an element and change it. What is different?

v0’s Design mode edits inside v0’s preview with v0’s models. MySunday works on your local app in your own Chrome with Claude Code or Codex, and checks the page with a verification report.

Does MySunday deploy to Vercel?

No. It changes code in your repository; your existing deploys (Vercel or anything else) pick it up as usual.

Try MySunday next to v0.

macOS app and Chrome extension. Your documents stay in Google Docs, Sheets and Slides, where MySunday makes the edits you confirm; your code stays in your repository, where your own Claude Code or Codex makes the changes.

Sources

Product names are trademarks of their owners. Information checked on 27 September 2026 from their public sites; tell us if something changed: support@mysunday.live.