Freezing & not saving on iPhone7 iOS

[ZedBiker 2]

I tend to write up my reports while relaxing at the end of the day, when travelling. I do this on my iPhone 7 running the latest IOS and latest Evernote version. It frequently freezes and I have to close the app and reopen. I tent to try to save (green tick) regularly but It is not uncommon to lose a paragraph of work. Very frustrating. Anyone else experiencing this?

[PinkElephant 8,284]

How old is your iPhone ?

Has it ever gotten a new battery ?

What you describe is typical for a battery powered device running low on power. Old batteries drop off in voltage supplied to the CPU. And the clock speed (= computing power) of the CPU is a direct function of the voltage on which it is running.

Go to a Genius Bar or an authorized Apple service, and have the battery checked.

If it is at 80% or below, let them replace it. You will get a „new“ phone for 49 $, and apps stop crashing.

https://support.apple.com/iphone/repair/service/battery-power

P.S. The same can happen when a phone has a damaged battery cell, for example through bending it accidentally. Can for example happen by sitting down with the phone in a rear pocket.

[ZedBiker 2]

Thank you for your reply. That is a possibility I was not aware of. It is heavily used and needs frequent recharging so the battery is probably the cause. 

[PinkElephant 8,284]

We made the same experience 2 years ago, and got new batteries for our 6 and 6S+.

The difference how they handled tasks before and after was amazing !