Which is better, AltStore or SideStore?

It depends on your device, setup preferences, and the current project requirements.

Can the same repository work with both?

Many repositories use compatible metadata, but actual support depends on the repository and sideloading tool.

AltStore vs SideStore

Shared purpose

AltStore and SideStore are both used to install compatible IPA apps outside the App Store. Both appear in the broader ecosystem of iOS app repositories and sideloading guides.

Main difference

The practical difference is setup and refresh workflow. Those details can change, so compare the official documentation for each project before choosing one.

How iappstores fits

iappstores is not a replacement for either tool. It helps users browse app listings, categories, repositories, and metadata before they decide what to install with their preferred sideloading setup.