App slow down up to a standstill after extensive usage

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Please fill out the following sections to the best of your ability, it will help us investigate bugs if we have this information at the outset. Screenshots are especially helpful, so please provide those if you can.

App version number, if a mobile app issue (shown under About in the side menu):

Operating System / Device (e.g. iOS 18.2, iPhone SE):
iPhone SE
iOS 18.3.2 (22D82)
Screenshots of what you are seeing (instructions for taking a screenshot on computers and mobile devices: https://www.take-a-screenshot.org/):

Description of problem (please provide a set of steps we can use to replicate the issue, and make as many as you need.):

Step 1:
Identify a bunch observations in the app, over timespan of eg 3-5 hours.
Step 2:
After this long period the application starts to get slower an slower sometimes up to a standstill (that is what I reached at this moment)
Step 3:
Terminating and restarting the app fixes the problem

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Thanks @misumeta for reporting this .. that’s not a great experience, and we will investigate!

1 Like
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Just a guess based on my own experience. If you have a large amount of observations in your list (like thousands), the app sometimes gobbles up system cache. If your phone is nearing memory space limits, this slows things right down. Clearing the app’s cache usually fixes things.

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How would I clear the cache?

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You’re on an iPhone right? Here’s the AI assistant version:

To clear an app’s cache on an iPhone, you can use the “Offload” feature. This method retains the app’s data while freeing up storage space. Here are the steps:

  1. Open the Settings app and tap on General.
  2. Tap on iPhone Storage.
  3. Scroll through the list of apps and find the one you want to clear the cache for.
  4. Swipe left on the app and tap Offload App.
  5. Confirm the action when prompted.
2 Likes
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Did it. While I don’t see a difference in the numbers in the general settings the app responds much faster now similar to how it worked in the beginning.
Thanks a lot.
Up to now I didn’t try everything, but I will share my experience as soon as I did more.

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Today it got worse. The app ended with a complete standstill. After restarting I got screen like this

IMG_6499
IMG_6499750Ă—1334 67 KB

After two or three tries I finally deleted the app and reinstalled it. That helped a lot. While I didn’t upload photos yet it’s in general much faster and more like it was at the very beginning and faster than it was after only clearing the cache.