WordPress (10000 programs)

Pros: Many customization options. Real-time calculations and price quotes.

Cons: Slow tech support. No useable functions with the free version.

Pros: QR code generator for the Gravity Forms plugin. Uses the official Gravity Forms API. Plenty of customization options.

Cons: Requires PHP 7.1 and up. Works with WordPress 5.0 and above only. No support for embedding into PDFs.

Pros: Add custom post types to your taxonomy. Automatically adds new terms to your database. Easy to use with a sleek interface.

Cons: No system to prevent errors.

Pros: Works with Geutenburge. Unlimited timers with free plugin. Scheduling future timers.

Cons: Only 3 styles of timers. Expensive plugin.