Bugs in iOS 11 are causing issues for users, with the latest one affecting the calculator.
Softpedia reported that iPhone users running iOS 11 have found that putting “1+2+3” into the calculator results in “23” or “24” being displayed.
An iPhone 6s running iOS 11.0.3 produced 23 when tested by MyBroadband.
“They say iOS 11 is one of the buggiest versions of Apple’s mobile operating system so far. Most of the supported iPhone models experienced terrible battery life, app crashes, freezes, and other issues,” stated the report.
It added that the calculator error may be due to animation issues with the app, with it ignoring certain taps.
The bug does not affect the performance of the device, however.