Published on in Vol 24, No 10 (2022): October
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/38963, first published
.
![Assessment of the Popularity and Perceived Effectiveness of Smartphone Tools That Track and Limit Smartphone Use: Survey Study and Machine Learning Analysis Assessment of the Popularity and Perceived Effectiveness of Smartphone Tools That Track and Limit Smartphone Use: Survey Study and Machine Learning Analysis](https://asset.jmir.pub/assets/bf0b6d6457007f5991908ed1bb31ef07.png 480w,https://asset.jmir.pub/assets/bf0b6d6457007f5991908ed1bb31ef07.png 960w,https://asset.jmir.pub/assets/bf0b6d6457007f5991908ed1bb31ef07.png 1920w,https://asset.jmir.pub/assets/bf0b6d6457007f5991908ed1bb31ef07.png 2500w)
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