Any suggestions for timer apps?

Hi guys,

Long story short: I am looking for suggestions for any apps that displays the amount of time spent on using a mobile phone or a laptop? And maybe a reminder function if i spend too much time? I wish to have a small area of space on my phone screen or even laptop screen to show the time ever since i switched on my devices to do my work or study. I have K9 installed on my laptop and net nanny on my mobile phone. Any help is appreciated!



Abit of background: I completed 95 days of Nofap from March to June earlier this year before relapsing and bingeing for 2 whole months before i finally tell myself enough is enough and i'm gonna star again, rebuilding everything back together. I am now at day 7 of no MO but still fighting urges to sneak a little bit of P, and I AM fierce about my standards and zero tolerant of any relapses myself. I Reset the counter because of 5 seconds of peeking the google search result.

Any help appreciated, Thanks!

 

Thanks @zod and @NotSoAverageJoe for your suggestions! I shall try them out in due time