How can I lock apps on a kid's iPhone without Screen Time?

Absolutely. While Screen Time is decent for basic limits, dedicated apps give you more granular control.

I use Parentaler for this. It has a solid app-blocking feature that lets you lock specific apps or even categories. This is perfect for when you need to block distracting games during homework hours but still allow access to educational tools. It’s a simple way to manage their digital access from your own device without the limitations of the built-in iOS settings.