How to run two separate instances of the same App on iPhone 15 Pro

[aquasky]

Hi

We’re tracking macros in a fitness App and wife wants to be able to record food we both eat and her and my fitness App while cooking (clearly convenient).

How can she install and run the same App https://apps.apple.com/gb/app/up-transform/id1476223525 but she would be logged into one instance of it and I would be logged into another instance?

Thanks so much! She uses iPhone 15 Pro

 

[chrfr]

Hi

We’re tracking macros in a fitness App and wife wants to be able to record food we both eat and her and my fitness App while cooking (clearly convenient).

How can she install and run the same App https://apps.apple.com/gb/app/up-transform/id1476223525 but she would be logged into one instance of it and I would be logged into another instance?

Thanks so much! She uses iPhone 15 Pro

You really can't do this. There's not a way for an app to have more than one set of settings, if the app itself is not set up to track two people inside the app.

 

[aquasky]

I have come across some tentative solutions like Parallel Space

and
https://apps.apple.com/gb/app/parallel-space-dual-account/id6450205765 and Slices, has anyone had any experience with them for running two of the same apps at the same time

 

[P_Watt]

I can see a problem in that you and your wife should have different Apple IDs and therefore different routes to your own Health data in each iCloud account.
Signing into different Apple IDs in one app, even with two instances provided by the above app, would be too much for iPhone infrastructure to handle. Using two iPhones will be needed.

 

[Paddle1]

I have come across some tentative solutions like Parallel Space

and
https://apps.apple.com/gb/app/parallel-space-dual-account/id6450205765 and Slices, has anyone had any experience with them for running two of the same apps at the same time

That second one is a jailbreak tweak from a decade ago which I doubt has relevance today. Plus you would need a security exploit to even jailbreak your phone in the first place, which is unauthorized by Apple and definitely not for casual users.

The iPhone simply doesn't have this kind of multiple app functionality.

 

[NoBoMac]

I'll admit that I don't know how these type of cloning apps work behind the scenes, but does seem like a sketchy thing to do and possibly opening one's device to "bad things".

Is this being done via some profile that allows the app and it's developer free reign to the phone?

The official way of doing something like this is to use Xcode: make a copy of the app, assign a new identifier to the copy, then re-sign the new app with a certificate that you own (in this case, the developer of cloning app).

Is the app downloading a copy of the app to some server and stuff happening there before being uploaded to the device? Due to sandboxing on iOS, think it's difficult to impossible to do this on the device.

 

[aquasky]

hi guys, thanks very much for taking the time to reply. Yes, it seems nearly impossible to do without additional risks.

 

[aquasky]

NoBoMac thanks for suggestion Xcode; it still seems to complex for what it is. The idea is to insert the amount of food we eat into an App that uploads and saves this info to a server. I think we should just use two iPhones (or maybe an iPad) for this. Thanks guys!​