Quizizz is now called Wayground. If you are comparing alternatives, first decide which part you need to replace: authoring questions, running a live review, or collecting individual work.
Check the answer format
Blooket offers question sets within game modes. Kahoot provides quiz activities. Use a few of your own questions to test how answers appear, how long students have, and what the teacher can review afterwards.
Keep individual evidence
A team score may be useful during play, but it does not show which student understood a concept. If individual assessment is the goal, test the response records or add a short written exit task.
Change subjects deliberately
EarthGuessr is a location-guessing game. It can support an observation task in geography, but it does not let you replace a custom set of algebra or vocabulary questions with the same assessment. Treat it as a different lesson activity.
Rehearse access
Open the student joining flow and check the current plan's limits. Do this with the devices you intend to use, including shared-device arrangements. Keep one lesson's worth of content ready before committing to move a whole question library.