I was just browsing Google Play looking for a speedometer app and I stumbled upon a “Voice Speedometer App”. I liked the idea of my phone telling me how fast I’m riding without looking at the screen. I haven’t tried it yet (in bed already) but apparently the app can tell you how fast you are travelling periodically. You can set the notification to x seconds - to whatever you feel appropriate. You can also set an upper and lower speed limit and trigger an alarm whenever you hit either.
This could be potentially useful to you wildlings doing speed tests wanting to know your current speed every 2 seconds for example. Just plug in some earbuds, fire up the app and you’re good to go. This could also increase safety as your will not be tempted to look at the screen and get distracted.
Will try it soon (maybe tomorrow?) If anybody else knows this app feel free to share your thoughts