Both are excellent AI app builders. They optimise for different things. Here is how to pick.
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You want maximum iteration speed. You know some code and want the AI as a fast pair. You want flexibility in framework (Vue, Astro, Next, Node). You want the rawest control of the output. You are a developer experimenting fast.
You want the prompt-to-finished-looking-product path. You want Supabase integration without configuring it. You are a non-developer or designer building for real users. You want the AI to make more decisions for you about defaults.
You need a native iOS or Android app. Bolt and Lovable both ship web; mobile only happens via Capacitor or wrappers. For native mobile from a prompt, Heaven Code Studio (Flutter) is the only single-prompt path to iOS + Android + Web + macOS.
If you need a native iOS / Android / macOS app from a prompt, Heaven Code Studio is the option. Flutter-based, single codebase to four platforms.
Bolt and Lovable are great for web. Heaven Code Studio is the missing native mobile builder. Pick by where your users actually use the product.
Free forever.
Sort of. Both can output web apps that can be wrapped (Capacitor, Tauri) for mobile, but the resulting app is a web app in a wrapper, not native. For App Store / Play Store submissions, the wrapper approach often passes review but is structurally lower-quality than native. Heaven Code Studio outputs real native Flutter apps.
Roughly equivalent — both around $20/mo for the most-used paid tier with usage caps. Bolt has a slightly more generous free tier; Lovable's paid tier includes more managed infrastructure (Supabase, deployment). Net cost over time is similar.
Bolt has the edge on raw iteration speed — changes appear faster. Lovable has the edge on iteration quality — the AI tends to make better architectural decisions because the framework constraint is tighter.
In principle yes — both export code. In practice, the framework choices differ (Bolt may have used Vue, Lovable defaults to React + Supabase) so a port is real work. Pick the right one for your project from the start.