Yes, a web app can always be considered as a possibility. Unfortunately, many features of a native app cannot be implemented with it.
In other words: Web apps have limitations since they can’t access a mobile device’s native features.
Maybe a hybrid app using Flutter or React Native ...
Depends whether it actually needs to be a web app or simply a mobile friendly website. If a web app, then take a look at Spider Basic.
Although we have weighed it, for the moment we have ruled out the web application option.
The solution I am working on involves less technical and commissioning complexity.
In the case that it was a web application:
Oh! I just came up with a new option! JavaScript with cookies! Please don't make me think so much!) 
Hi Luis
The website can be stored on the device as part of the App Assets, no internet required, so your 'host' App is essentially just a Web View Component. That might make it much easier to produce an IOS version of the App when App Inventor IOS is ready.
Or not have an App at all and just view the on-device site with the phone's browser, a one-off download from your website.
If it were my company, I would be seriously considering taking people off IOS and have everyone use Android - a single platform to manage rather than two. Even when you can get an App onto IOS, I think you will find there is more hassle and cost than to do the same for Android.
The application needs to store information and use part of the information to dynamically generate a page (thanks to the PuraVida @Taifun example).
Through Companion I have already tested the application on Android and iOS. In both it works. I'm waiting for the iOS build project to go further to see how this can be done with them.
I wish that my company did not use iPhones, but my boss is in love with the apple brand (and some commercial too). Personally ... well I'll tell you that one day I passed by an apple store and the automatic doors didn't even open ... but hey ...
The issue is that the application will not be used only by my company staff, in fact it is not aimed at my company staff and although "I estimate that" taking into account the target audience, the iOS version will be used minimally, it is possible have someone out there to use it.
A summary of the application is:
Through a PC application, I generate QR codes that contain user information and that after scanning, the user's information is stored on the mobile.
With that information, I generate a QR code for the user to identify himself to computers so that he can do a series of tasks (and even define more or less the task to be carried out).
Once the work is done, the computer generates a summary that is communicated to the mobile through another QR code, so that this information can be consulted.
Sounds like you are working for the CIA 
I doubt it. I'm sure if the CIA wanted to make us speed up iOS build release they'd have a way of doing it...
Sure! but no 
... hopefully!
If I worked at the CIA, I don't think I'd have a problem getting a Mac either. No, I work in a company related to the food sector, but that does not mean that sometimes I do something cool! 
Hello everyone,
I am following this conversation with great interest since I am intending to program apps for the patients of my clinic : some come with an android phone 
but a lot of them come with iphone 
... well, I am planning to make an app in the context of a graduation, but if I rely on the OS of the patient it's a problem 
I was wondering if using an Android Emulator for IOS could be an issue. Did someone already try ?
@ChrisWard I keep in mind the idea of making a web app although I am not sure how to do it
Hello Hé Lène
It all depends entirely on what the App is actually required to do.
Clearly a non-starter! 
Clearly a non-starter!
Sorry, I am not sure to understand : do you mean it is not for beginners (like I am) ?? do you have experience with it ? what would you recomand ?
thx
Well, I meant that you cannot use an Android Emulator with IOS - what were you thinking of? Do you have a link we can see?
indeed, I was wondering if this was an existing option ... but your answer tells me it is not the case 
What do you want the application for? Advertising? Customer control?
I am counting the days so that they can be done with AI2. At the moment, with "another similar to AI2" I am trying to throw ... but I want to jump back to AI2 whenever possible, because after trying both ... I like AI2 much more (even if they made a payment would continue to see a much better option).
I suppose that it will also depend on the rush you have or what you want to deepen (or if, as for example happens with @Anke , you want to dedicate yourself to making more applications for both platforms)
me ? I want to build exercises for my patients (having trouble after cerebral lesions) ... not exactly the same as you 
Xcode is the graphical interface you'll use to write iOS apps. Xcode includes the iOS SDK, tools, compilers, and frameworks you need specifically to design, develop, write code, and debug an app for iOS. For native mobile app development on iOS, Apple suggests using the modern Swift programming language.
Yes, see also here (post #22):
I have just, but it's $1,000 pa?
I just want to develop something for my own use
Hello Dave
Take a look at B4x. It's a Basic like programming language but structured, so relatively easy to use (but of course text based).
https://www.b4x.com/