muppetly

Update: 9.0.3 fixed the problem - impressive prompt response by the developer. Back to 5 stars. Still works under iOS 17 on 13 Pro Max, but strange display text overwriting artifacts make some of the data fields difficult to read.

Nice UI, but on my iPhone 4 it is unusable. Repeated tests show the satellite lock indication is intermittent and even when locked the reported speed is unstable, with wild fluctuations, including short excursions to over 200 mph. Other apps, running both concurrently or sequentially (with only one GPS app running at any time) are reporting stable and accurate speeds.