What makes you stop using a calorie tracker?

I'm building Kalance and I'm trying to understand the exact moment a food diary becomes too annoying to keep using. For me it was ads, slow logging and basic features moving behind a paywall.

If you've quit one, what did it? I've kept Kalance's diary, barcode scanner and daily balance free and ad-free, and I'm launching Monday to test whether that's enough to make the habit stick.

If you want to try it before answering: https://kalance.app/login?locale=en&mode=register&utm_source=producthunt&utm_medium=forum&utm_campaign=demand_reply

Honest answers welcome, especially from people who gave up after the first week.