AppleInsider reader Frank experienced the problem first hand with popular stargazing app Sky Guide, which relies on iPhone’s advanced sensor suite to power an augmented reality function that transforms the device into an interactive map of the night sky,” Mikey Campbell reports for AppleInsider.

“Under normal conditions, users point their iPhone up toward the sky to see an onscreen view of stars, planets, constellations and more, but on iPhone 6s running iOS 9 — including the latest iOS 9.0.1 update — the map drifts uncontrollably,” Campbell reports. “Developer Fifth Star Labs confirmed issues affecting Sky Guide‘s ‘Compass’ feature are limited to iPhone 6s and do not extend to older hardware.”

“Other augmented reality titles relying on data generated by iPhone’s digital compass, three-axis gyroscope and accelerometer are also seeing problems, but certain apps like Apple Maps function correctly, suggesting the issue lies in a faulty iOS API. Fifth Star Labs is currently working on a fix,” Campbell reports. “Apple faced similar sensor difficulties in 2013 when iPhone 5s owners reported faulty readings from iOS 7’s Compass app.”

Read more in the full article here.

MacDailyNews Take: This has happened as far back as with the iPhone 3GS. Our advice: Don’t with an iPhone until 3-4 weeks after launch. This time, it’s either the API itself or some developers’ implementation(s) of it. We expect it’ll get ironed out in short order.

SEE ALSO:
Sensorgate: Apple iPhone 5c also exhibiting sensor issues, too – October 7, 2013
Sensorgate: iPhone 5s sensor malfunctions may be widespread (with video) – October 4, 2013
Apple’s iPhone 3GS’s wacky compass due to software or hardware issues? – July 14, 2009