...have you figured out if the flight information was wrong (altitude and speed) , the plane information was wrong (brand and type) or was the tail number wrong?
In the example I quoted, I can be reasonably confident that the aircraft type/reg is correct because the aircraft is known to me.
You could always try running FR24 in the background and bring it the foreground from time to time, or in run it and SD in split screen mode, if supported by your device, or run FR24 on a separate device, but in my experience, internet connection whilst flying is very flaky at the best of times. Too many "ifs and buts" to my mind! Personally, I would not want to place any reliance on FR24 or anything similar. In addition to altitude/speed errors, from personal experience, position errors are also very common.
I prefer to rely on SkyEcho2 with Flarm decoding enabled, which catches a majority of traffic, but until such time as ADS-B Out is mandated for all aircraft, we will have to accept that current traffic awareness systems are far from perfect.
Samsung Galaxy Tab A8 – Android 10.0 & SD 126.96.36.19980
Huawei P30 – Android 10.1.0 & SD 188.8.131.5280
PC – Windows 10 (Home Ed) Version 2004, Build 19041.329 & SD 3.14.1