It’s ok…
It is not the worst app but there are some minor flawsI have an 11 yr old iPad, with lots of cracks on it and faulty touch sensitivity, so this sometimes prevents me from stopping the timer, resulting in a delay, not to mention the ads. It plays an ad as soon as you stop the timer which, in my opinion, is a bit annoying. It is reliable-ish, and has accurate timing though.
Response from developer
I understand ads can be annoying but they do allow me to continue to update an otherwise free to use app. I would recommend using the time the ad is running to scramble your cube again, but there is the option to remove ads. Anyways I appreciate any support and open to more feedback for improving the app.