Unfortunately the way the Apple multitasking works is quite limited … (more details on nexercise.com/faq)
That being said we are on your side! We think it’s absolutely ridiculous that we can’t access this data, so we have decided to make a concession…
Starting in version 1.7 of the app, you can get partial credit for “non-validated” time. Note that you will get fewer points for times we cannot validate, but you will still qualify for rewards.
To track a non-validated activity:
1) Start Nexercise, pick your activity, and start tracking.
2) Push it to the background for up to 2.5 hours.
3) When you’re done, bring Nexercise back to foreground, stop Nexercise, and submit the activity.
Related Topic: Don’t want to carry device?