Comparison
Progressier vs PWABuilder
Progressier and PWABuilder both help turn a website into a PWA, but from different angles: Progressier is a paid, hosted, no-code service; PWABuilder is a free, open-source Microsoft project focused on manifest/service-worker generation and app-store packaging.
Choose Progressier if…
Choose Progressier if you want a fully managed, no-code PWA setup and are willing to pay for the convenience.
Choose PWABuilder if…
Choose PWABuilder if you want a free, open-source toolchain and are comfortable integrating the generated manifest/service-worker yourself, or need app-store packaging.
Where InstantPWA fits
Both tools are about generating the PWA itself (manifest, service worker, icons). InstantPWA assumes the PWA already exists (from either of these, or a custom build) and focuses purely on maximising how many visitors actually install it, with analytics and A/B testing on the install prompt.
Try InstantPWA freeFAQ
Do I need both a PWA generator and an install prompt tool?
A generator (Progressier or PWABuilder) makes the site installable; a prompt tool like InstantPWA increases how many visitors actually do install it. They solve different problems.
Is PWABuilder really free?
Yes, PWABuilder is a free, open-source Microsoft project (github.com/pwa-builder).
Can PWABuilder publish to the App Store?
PWABuilder can package a PWA for iOS via a native wrapper, but Apple's App Store review and developer program requirements still apply.