Lovable, Replit, Bolt or Base44: which AI app builder should I use?

Lovable, for most non-technical founders building a first real web app; Replit when the app needs a real backend you will keep running and fixing. Lovable builds and hosts an app with a database and sign-in from chat, free to start (5 build credits a day, up to 30 a month, and chatting with it has been free since September 2026) and Pro is from $25 a month. Replit's agent builds, hosts and monitors apps with databases built in; Core is $20 a month and Pro $100. Bolt has the most generous free tier to try (1M tokens a month, 300K a day), and Pro at $25 a month adds your own domain. Base44 is the cheapest paid start at $16 a month billed annually, with a free plan of 25 message credits and up to 5 apps, for simple apps with users and data. From India, Emergent is an Indian-built option that also makes mobile apps, free with 10 credits a month and $20 for Standard. Build the same first screen free in two, then pay for the one whose result you would hand a developer.