How to Evaluate AI Coding Tools for Your Specific Project

"What's the best AI coding tool?"

I get asked this question constantly. And the answer is always the same: it depends on what you're building.

That's not a cop-out. It's the truth. Asking "which AI coding tool is best" is like asking "which vehicle is best" without saying whether you need to move a family across town or cargo across an ocean.

Here's the framework I use with clients to figure out the right tool in under ten minutes.

The Five Questions That Determine Your Tool

1. How Complex Is Your Project?

Simple (any tool works): - Under 10 screens - Standard CRUD operations (create, read, update, delete) - Single user type - No payments or simple one-time payments - No real-time features - No multi-tenant data

Medium (choose carefully): - 10-20 screens - Multiple user roles - Subscription payments - Basic integrations (email, calendar, CRM) - Some custom business logic

Complex (Cursor or professional development): - 20+ screens - Multi-tenant data isolation - Complex payment flows (subscriptions, marketplace splits, metered billing) - Real-time collaboration - Compliance requirements - Custom algorithms or business rules

Most founders underestimate their project's complexity. If you're building anything that handles other people's money or other people's data, you're probably in the "complex" category.

2. What's Your Technical Skill Level?

Non-technical (Lovable or Replit): You've never written code. You need the tool to make all the technical decisions for you. Lovable is more forgiving; Replit is more powerful.

Semi-technical (Replit or Bolt): You've done some coding or can read code without writing it from scratch. You can debug with help from AI. Replit's Agent works well here because you can course-correct when it goes wrong.

Technical (Cursor): You can code, or you have a developer who can. Cursor accelerates your work 3-5x but assumes you understand what you're building.

3. How Much Lock-in Can You Tolerate?

Zero lock-in tolerance: Use Cursor. You own every file. No platform dependency.

Low lock-in tolerance: Use Lovable. The GitHub sync means your code is always available outside the platform.

High lock-in tolerance: Any platform works. But understand you're making a bet on that platform's future.

For funded startups, lock-in tolerance should be zero. Investors will ask about your technology stack, and "we're on Bubble" or "we're locked into Replit" is not the answer they want to hear.

4. How Sensitive Are You to Cost?

Budget under £100/month: Cursor ($20/month) or Bolt ($15/month) with your own hosting. Most cost-effective for ongoing development.

Budget £100-500/month: Any tool works at this range. Replit and Lovable are comfortable here.

Budget is flexible: Use whatever tool fits the project best. Switch tools between phases if needed.

Remember: the tool cost is never the main expense. Your time — or the time of whoever is building — dwarfs the subscription fees.

5. What's Your Timeline?

Need something by Friday: Bolt or Lovable. Fastest to a working demo.

Need something in 2-4 weeks: Replit or Lovable for prototyping, with an option to move to Cursor for production.

Building for the long term: Start with Cursor or plan your migration path from day one.

The Decision Matrix

Match your answers to the framework:

Simple project + non-technical + any timeline = Lovable It's the most forgiving tool for simple applications. The UI generation is beautiful and the GitHub sync protects you from lock-in.

Simple project + technical + tight budget = Cursor Why pay for a platform when you can use Cursor with free hosting? Better code quality and zero lock-in.

Medium project + non-technical + fast timeline = Replit The Agent handles full-stack complexity better than Lovable's backend capabilities. Budget for credit spikes during debugging.

Medium project + technical + any timeline = Cursor The complexity warrants professional tooling. Cursor's multi-file awareness prevents the regressions that plague app builders at this complexity level.

Complex project + any skill level = Cursor (with experienced operator) No app builder handles complex projects reliably. If you're non-technical, hire someone who uses Cursor. The upfront cost is lower than the cost of rebuilding a failed app-builder project.

The Migration Planning Rule

Whatever tool you choose, plan your migration path before you start building. Not because you'll definitely migrate — but because knowing you can leave changes how you build.

Ask yourself: if this tool disappeared tomorrow, how would I move my project?

With Cursor: trivially — you already own all the files. With Lovable: export from GitHub, set up hosting elsewhere. With Replit: export code, migrate database, reconfigure environment. With Bolt: export code, untangle browser-specific assumptions.

The harder the migration, the more carefully you should consider whether this is the right tool for a serious project.

The Most Common Mistake

Founders choose tools based on the demo experience. Every tool's demo is impressive. Every tool makes the first hour feel magical.

The right question isn't "how does this tool feel in the first hour?" It's "how does this tool feel at month two when I'm debugging authentication and my AI credits are running low?"

Choose for the hard parts, not the easy parts. Every tool handles the easy parts well.

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Related reading

• [Cursor vs Replit vs Bolt vs Lovable](https://hellocrossman.com/resources/blog/cursor-vs-replit-vs-bolt-vs-lovable)
• [The True Cost of Free AI Coding Tools](https://hellocrossman.com/resources/blog/true-cost-free-ai-coding-tools)
• [The Vibe Coding Reality Check](https://hellocrossman.com/resources/blog/vibe-coding-reality-check-founders-guide)
• [When AI Tools Work Best](https://hellocrossman.com/resources/blog/when-ai-tools-work-best)