Vibe-Coding App Builders arenaBuyer checklist

Every requirement we judge vibe-coding app builders products against, as a ready-to-send RFP checklist — with each item's priority, why it matters, and how the top-ranked products score on it today.

52 requirements · 12 themes · verdicts for 6 products · updated 2026-09-16 · priorities mirror the story weights our scoring uses (methodology)

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# Vibe-Coding App Builders — buyer checklist (RFP)

Derived from ProductArena's evidence-graded user-story taxonomy for Vibe-Coding App Builders: 52 judged requirements. Priorities mirror story weights (3 = must-have, 2 = should-have, 1 = nice-to-have).

## Agenticness

- [ ] **[must-have]** Plug MCP servers into this product so it can use their tools
- [ ] **[must-have]** Connect an agent via an official MCP server
- [ ] **[must-have]** Drive the product through a documented public API
- [ ] **[must-have]** Delegate tasks to a built-in AI assistant inside the product
- [ ] **[should-have]** Point an agent at llms.txt or agent-oriented docs
- [ ] **[should-have]** Run the product headlessly / in CI for automation
- [ ] **[should-have]** Use an official CLI
- [ ] **[should-have]** Issue scoped/least-privilege API credentials for an agent
- [ ] **[should-have]** Build against official SDKs
- [ ] **[should-have]** Subscribe to events via webhooks
- [ ] **[should-have]** Get AI-generated insights and suggestions from my data inside the product
- [ ] **[should-have]** Set up automations that run autonomously in the background
- [ ] **[should-have]** Operate the product with natural-language commands
- [ ] **[should-have]** Explore an interactive API reference with runnable examples
- [ ] **[should-have]** Download a machine-readable API spec (OpenAPI or equivalent)
- [ ] **[should-have]** Rely on versioned APIs with a documented deprecation policy
- [ ] **[nice-to-have]** Test against a sandbox environment without touching production data

## Automation depth

- [ ] **[must-have]** Define rules that trigger actions automatically on events
- [ ] **[should-have]** Perform bulk operations across many items at once
- [ ] **[should-have]** Schedule recurring jobs or workflows
- [ ] **[nice-to-have]** Version, review, and roll back my automations

## Backend data

- [ ] **[must-have]** Add user sign-up and login (email, social providers) scaffolded by the builder
- [ ] **[must-have]** Get a database provisioned and wired into my app without leaving the builder
- [ ] **[should-have]** Add AI features like LLM calls and agents to my generated app without managing provider keys myself
- [ ] **[should-have]** Have the platform review my generated app for security issues before it goes live
- [ ] **[should-have]** Add server-side functions and third-party integrations like payments and email from the builder

## Code ownership

- [ ] **[must-have]** Export the full source code and run or host the app outside the platform
- [ ] **[must-have]** Sync my project to my own GitHub repository and keep changes flowing both ways
- [ ] **[should-have]** Work on the app locally with my own editor and tooling and push changes back to the platform

## Collaboration teams

- [ ] **[should-have]** My team can work on the same project together in a shared workspace

## Deploy domains

- [ ] **[must-have]** Publish my app to a live URL in one step
- [ ] **[should-have]** Connect a custom domain to my published app
- [ ] **[nice-to-have]** Deploy the generated app to an external host or my own infrastructure

## Iteration editing

- [ ] **[must-have]** Refine my app through follow-up prompts without breaking what already works
- [ ] **[should-have]** Connect my own coding agent to the project so it drives the builder alongside or instead of the built-in one
- [ ] **[should-have]** Open and edit the generated source code directly inside the builder
- [ ] **[should-have]** Interact with a live preview of my app while building, before publishing
- [ ] **[should-have]** Select an element and edit its text, style, or layout directly without a prompt round-trip

## Openness

- [ ] **[must-have]** Export all of my data in open formats and leave
- [ ] **[must-have]** Self-host the core product
- [ ] **[should-have]** Do everything through the API that I can do in the UI
- [ ] **[should-have]** Read the product's source under an open license

## Pricing limits

- [ ] **[should-have]** Understand what credits or tokens each action consumes and what my plan includes

## Privacy posture

- [ ] **[must-have]** Prevent my data from being used to train AI models
- [ ] **[should-have]** Choose where my data is stored (region/residency)
- [ ] **[should-have]** Control data retention and deletion
- [ ] **[should-have]** Opt out of telemetry and usage tracking

## Prompt to app

- [ ] **[must-have]** Generate both frontend UI and backend logic from a single prompt
- [ ] **[must-have]** Describe an app in natural language and get a working full-stack application
- [ ] **[must-have]** Generate and manage apps programmatically through a platform API
- [ ] **[should-have]** Import a Figma file or existing design and have the builder implement it

## Templates ecosystem

- [ ] **[should-have]** Start from a template or community project instead of a blank prompt

---

Source: https://ultrametric.ai/productarena/arena/vibe-coding (evidence-graded verdicts for 6 products) · methodology: https://ultrametric.ai/productarena/methodology

Chips show the top 5 ranked products' current verdict on each requirement — ✓ full · ~ partial · ! disputed · — none · n/a not applicable.

Agenticness — how well agents can access and operate the productAgenticness· 17 items

How well agents can access and operate the product

ai-native userPlug MCP servers into this product so it can use their tools
Core requirement — weighs 3× in arena scoring · 2 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
ai-native userConnect an agent via an official MCP server
Core requirement — weighs 3× in arena scoring · all 4 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
ai-native userDrive the product through a documented public API
Core requirement — weighs 3× in arena scoring · 2 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
ai-native userDelegate tasks to a built-in AI assistant inside the product
Core requirement — weighs 3× in arena scoring · all 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
ai-native userPoint an agent at llms.txt or agent-oriented docs
Important, not disqualifying — weighs 2× in arena scoring · 5 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
ai-native userRun the product headlessly / in CI for automation
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userUse an official CLI
Important, not disqualifying — weighs 2× in arena scoring · 1 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
ai-native userIssue scoped/least-privilege API credentials for an agent
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userBuild against official SDKs
Important, not disqualifying — weighs 2× in arena scoring · 2 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
ai-native userSubscribe to events via webhooks
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userGet AI-generated insights and suggestions from my data inside the product
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userSet up automations that run autonomously in the background
Important, not disqualifying — weighs 2× in arena scoring · 1 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
ai-native userOperate the product with natural-language commands
Important, not disqualifying — weighs 2× in arena scoring · all 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
ai-native userExplore an interactive API reference with runnable examples
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userDownload a machine-readable API spec (OpenAPI or equivalent)
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userRely on versioned APIs with a documented deprecation policy
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userTest against a sandbox environment without touching production data
Differentiator, not a dealbreaker — weighs 1× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
nice-to-have

Automation depth — how much of the product can run unattendedAutomation depth· 4 items

How much of the product can run unattended

ai-native userDefine rules that trigger actions automatically on events
Core requirement — weighs 3× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
must-have
ai-native userPerform bulk operations across many items at once
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userSchedule recurring jobs or workflows
Important, not disqualifying — weighs 2× in arena scoring · 1 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
ai-native userVersion, review, and roll back my automations
Differentiator, not a dealbreaker — weighs 1× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
nice-to-have

Backend data — stories about backend data in this arenaBackend data· 5 items

Stories about backend data in this arena

developerAdd user sign-up and login (email, social providers) scaffolded by the builder
Core requirement — weighs 3× in arena scoring · 3 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
developerGet a database provisioned and wired into my app without leaving the builder
Core requirement — weighs 3× in arena scoring · 4 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
ai-native userAdd AI features like LLM calls and agents to my generated app without managing provider keys myself
Important, not disqualifying — weighs 2× in arena scoring · 2 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
developerHave the platform review my generated app for security issues before it goes live
Important, not disqualifying — weighs 2× in arena scoring · 1 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
developerAdd server-side functions and third-party integrations like payments and email from the builder
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have

Code ownership — stories about code ownership in this arenaCode ownership· 3 items

Stories about code ownership in this arena

developerExport the full source code and run or host the app outside the platform
Core requirement — weighs 3× in arena scoring · 5 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
developerSync my project to my own GitHub repository and keep changes flowing both ways
Core requirement — weighs 3× in arena scoring · 4 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
developerWork on the app locally with my own editor and tooling and push changes back to the platform
Important, not disqualifying — weighs 2× in arena scoring · 3 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have

Collaboration teams — stories about collaboration teams in this arenaCollaboration teams· 1 item

Stories about collaboration teams in this arena

founderMy team can work on the same project together in a shared workspace
Important, not disqualifying — weighs 2× in arena scoring · 2 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have

Deploy domains — stories about deploy domains in this arenaDeploy domains· 3 items

Stories about deploy domains in this arena

founderPublish my app to a live URL in one step
Core requirement — weighs 3× in arena scoring · 4 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
founderConnect a custom domain to my published app
Important, not disqualifying — weighs 2× in arena scoring · 4 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
developerDeploy the generated app to an external host or my own infrastructure
Differentiator, not a dealbreaker — weighs 1× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
nice-to-have

Iteration editing — stories about iteration editing in this arenaIteration editing· 5 items

Stories about iteration editing in this arena

founderRefine my app through follow-up prompts without breaking what already works
Core requirement — weighs 3× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
must-have
ai-native userConnect my own coding agent to the project so it drives the builder alongside or instead of the built-in one
Important, not disqualifying — weighs 2× in arena scoring · 2 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
developerOpen and edit the generated source code directly inside the builder
Important, not disqualifying — weighs 2× in arena scoring · 1 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
founderInteract with a live preview of my app while building, before publishing
Important, not disqualifying — weighs 2× in arena scoring · 4 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have
designerSelect an element and edit its text, style, or layout directly without a prompt round-trip
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have

Openness — open source, data portability, and self-hosting storiesOpenness· 4 items

Open source, data portability, and self-hosting stories

ai-native userExport all of my data in open formats and leave
Core requirement — weighs 3× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
must-have
ai-native userSelf-host the core product
Core requirement — weighs 3× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
must-have
ai-native userDo everything through the API that I can do in the UI
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userRead the product's source under an open license
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have

Pricing limits — free-tier ceilings, usage caps, and rate limits before you have to payPricing limits· 1 item

Free-tier ceilings, usage caps, and rate limits before you have to pay

founderUnderstand what credits or tokens each action consumes and what my plan includes
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have

Privacy posture — data-handling and privacy storiesPrivacy posture· 4 items

Data-handling and privacy stories

ai-native userPrevent my data from being used to train AI models
Core requirement — weighs 3× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
must-have
ai-native userChoose where my data is stored (region/residency)
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userControl data retention and deletion
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have
ai-native userOpt out of telemetry and usage tracking
Important, not disqualifying — weighs 2× in arena scoring · no product fully delivers this yet
Lovable Replit Base44 v0 Floot
should-have

Prompt to app — stories about prompt to app in this arenaPrompt to app· 4 items

Stories about prompt to app in this arena

developerGenerate both frontend UI and backend logic from a single prompt
Core requirement — weighs 3× in arena scoring · 5 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
founderDescribe an app in natural language and get a working full-stack application
Core requirement — weighs 3× in arena scoring · 3 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
ai-native userGenerate and manage apps programmatically through a platform API
Core requirement — weighs 3× in arena scoring · 1 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
must-have
designerImport a Figma file or existing design and have the builder implement it
Important, not disqualifying — weighs 2× in arena scoring · 2 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have

Templates ecosystem — stories about templates ecosystem in this arenaTemplates ecosystem· 1 item

Stories about templates ecosystem in this arena

founderStart from a template or community project instead of a blank prompt
Important, not disqualifying — weighs 2× in arena scoring · 1 of 6 products fully deliver this today
Lovable Replit Base44 v0 Floot
should-have

Full evidence behind every verdict lives on the arena page and each product page — chips above deep-link straight to the judged story.

✨Vibe-Coding App Builders arenaBuyer checklist

🤖Agenticness — how well agents can access and operate the productAgenticness· 17 items

⚙️Automation depth — how much of the product can run unattendedAutomation depth· 4 items

🗄️Backend data — stories about backend data in this arenaBackend data· 5 items

💻Code ownership — stories about code ownership in this arenaCode ownership· 3 items

👥Collaboration teams — stories about collaboration teams in this arenaCollaboration teams· 1 item

🚀Deploy domains — stories about deploy domains in this arenaDeploy domains· 3 items

📝Iteration editing — stories about iteration editing in this arenaIteration editing· 5 items

🔓Openness — open source, data portability, and self-hosting storiesOpenness· 4 items

💲Pricing limits — free-tier ceilings, usage caps, and rate limits before you have to payPricing limits· 1 item

🔒Privacy posture — data-handling and privacy storiesPrivacy posture· 4 items

✨Prompt to app — stories about prompt to app in this arenaPrompt to app· 4 items

📝Templates ecosystem — stories about templates ecosystem in this arenaTemplates ecosystem· 1 item