Local AI app builders vs a hosted personal app home
Choose a local builder if working with files on your own computer is part of what you want. Choose a hosted personal app home if you mainly want to open your tools from different devices. Where the builder runs, where the app runs, and where AI requests go are three separate questions.
Local doesn't always mean offline
Dyad describes itself as a local, open-source AI app builder. That gives you a development workflow on your computer. Its publishing guide also covers putting an app online.
A local builder can call a remote AI provider. A locally developed app can use a hosted database. Publishing it can make it accessible when your laptop is closed. Read the model and hosting settings rather than treating “local” as a complete privacy or availability promise.
Hosted makes the everyday opening easier
Kaddy's hosted approach is meant for apps you open in a web browser on your phone or computer. You don't keep a development server running on your laptop to use them. A new app joins your existing Kaddy rather than becoming another deployment you manage.
You give up some freedom in return. Your apps use Kaddy's supported app model. If you need custom system packages or a particular backend framework, that constraint may be too tight.
Ask where the conversation goes
Builder location alone doesn't answer who processes an AI conversation. In Kaddy, the selected model determines whether inference runs on Cloudflare or an external provider. Each app has its own memory, but that isn't a claim that conversations never leave the hosting platform.
For any builder, check the model provider, stored data, sharing controls, and export options. If keeping all inference on your own hardware is a requirement, verify that whole path before choosing a tool.
Pick the maintenance you're happy to do
Local development is attractive when you want direct access to the project and are comfortable with its setup. Hosted personal apps are attractive when maintenance is the thing you were trying to avoid.
A useful test is to close your laptop and try the app from your phone. Then think about changing it a month later. Those two moments expose the differences more clearly than a feature checklist.
For project-based hosted builders, see Lovable vs Replit. For Kaddy's organizing idea, read one home for personal apps.