free vs paid ai interview tools, is the upgrade actually worth it or am i being scammed
ok backstory. i had 6 interviews coming up. senior backend role, mid size company, the kinda loop that has 1 phone screen then 4 more rounds. wanted some kinda AI helper but didnt wanna pay before i actually saw if these things worked. so i went the cheap route and tried a bunch of free tiers for 2 weeks.
ended up trying 3 of them. one had a "free 3 sessions" thing, one had a few free minutes, one was credit based, 1 credit per minute. people in this sub kept telling me just pick the good one and pay, but i was being weird about money that month so i ignored the threads. wanted to pretend the free stuff would carry me through.
did 2 mock interviews on zoom with my partner in the first week. answers showed up fine, behavioral was easy enough, i thought ok this is gonna work.
then real interviews started.
round 1 was 45 min system design. free minutes died at minute 12. tool literally stopped generating mid question. i just sat there pretending i was "thinking deeply about trade offs." the interviewer was nice enough to give me a hint but ya it was bad. round 2 i used a different free one that resets in 15 min sessions. guess when the session hit its cap. yep in the middle of a caching discussion. had to wing the rest on caching strategies i half remembered from educative.
after the second blowup i finally caved and paid for one of them for a month. two interviews after that and the gap was embarassing. unlimited minutes obviously, answers came in way faster, the coding mode didnt freak out on the leetcode medium they gave me, and when i had to share my screen for 40 min it stayed out of the capture. like actually hidden not "hidden."
the part that got me most was the free tier of the paid one was actually one of the weaker free tiers. only like 10 free mins. so if i had picked based on free quality id have picked a worse tool. total trap.
anyway curious if others felt the same jump. for those of you who paid, was it worth it or was the free tier basically the same product? also did anyone actually make it through a full loop on free without it blowing up on them mid call. asking cuz a couple coworker friends are in the same cheapass phase i was in and idk what to tell them. some of these free tiers are fine for practice, bit i dont think any of them actually hold up on game day.