Develop Reference

Play Install Referrer vs Firebase Deeplinking

I want to have referral links to get the referral code with in the application (after installation) to provide credits based on the code for both Android and iOS.
I was able to explore these options:
1. Play Install Referrer API
Where the url would look something like: https://play.google.com/store/apps/details?id=com.example.myapp&referrer=utm_source%3Dstaff-referral%26utm_content%3713491235
Where I can get the content 713491235 using the Play Install Referrer API. However the problem here is this is very specific to Android and cannot work for iOS.
2. Firebase deep linking
Where the url would look something like: https://myapp.page.link/?link=https://mywebapp.com/713491235&apn=com.example.myapp
Where I can get the url https://mywebapp.com/713491235 using the Firebase deeplink api. This seems to solve for Android and iOS, but there isn't much information on how long the deeplink is alive, meaning
What happens if I install the app using deeplink but don't open the app for few days. Will it still be available when I open the app later.
What happens if I click on the link, but do not install then are there. Instead install it later by searching on playstore and installing. Will I still be able to get the link once the app is open?
Is there a way to combine both the Play Install Referrer API and Firebase deeplink? like - https://myapp.page.link/?link=https://mywebapp.com&apn=com.example.myapp&afl=https://play.google.com/store/apps/details?id=com.example.myapp&referrer=utm_source%3Dstaff-referral%26utm_content%3713491235 so that if the app is not installed on Android, we can use the Play Install Referrer API(which looks more reliable).
And I am not able to understand the purpose of Play Install Referrer Links, if they are not converted to universal links, because often we don't know which device the url will be used on. Sharing a link specific to playstore doesn't seem to help. What exactly is the usecase of Play Install Referrer?
Because in case of Play Install Referrer API they were clearly mentioning:
Caution: The install referrer information will be available for 90
days and won't change unless the application is reinstalled. To avoid
unnecessary API calls in your app, you should invoke the API only once
during the first execution after install.

I'll answer your questions one by one - I think Firebase Dynamic Links are the better choice for you, based on your requirements.
I couldn't find anything in the documentation for this, but it seems that the link will expire roughly 1 hour from install time (as said here and here).
Android and iOS integration methods are interestingly different in Firebase - if an new iOS user taps the link, it will copy the Dynamic Links URL to the clipboard and read it when the app is opened, whereas Android calls the intent handler for the URL, which in turn calls a Firebase function that extracts the link.
This means that an iOS link, until a user copies something else, should still work - which effectively means a short lifetime, as you can't rely on your users not copying something else. For Android, though, the intent handler is the link - if a user breaks the flow, it'll no longer work.
From a technical view, you could completely create a double-link - I'm not sure whether that would be needed, though, as I'm not sure on how the Play Install Referrer API works and I assume it will use a similar method with them both being developed by Google.
The main use case of the Play Install Referrer API is to track the effectiveness of ad campaigns on a mobile app - the data received from the API is similar to the UTM parameters at the end of a URL (e.g. utm_campaign, utm_source) that tell the website owner where the user comes from. They can be used in situations where the advert knows what your device OS is - for example, an advert inside another app.

Google Analytics traffic source attribution using Google Tag Manager (Legacy) SDK

I am looking to track General Campaigns (not install campaigns, but these ones GA "General Campaigns" tracking). When you create a deep link to your app and add UTM parameters so you can know from which source user has returned to your app (already installed).
Previously (GA SDK), we were using the setCampaignParamsFromUrl method which is not available for GTM SDK for some reason.
What's the best way to attack this, please? Also, does the next SDK version (v5 - Firebvase+Tag Manager SDK) solves this problem?
I know, I need to install receiver and intent to track install campaigns - I am after specifically General Campaigns

Has anyone gotten Google Play's "Tracked Channels (UTM)" campaign tracking to work?

The Google Play Developer Console offers the Tracked Channels (UTM) view under User Acquisition → Performance which should be able to show a breakdown of which tagged links users clicked to get to the store listing, etc.
I have generated several different links to my app using the Google Play URL Builder, e.g.:
https://play.google.com/store/apps/details?id=com.vandenmars.colortrek&referrer=utm_source%3Dso%26utm_medium%3Dlink%26utm_campaign%3Dlink%26utm_content%3DTBk
I did a couple of tests last week where I opened the Play Store using these links and installed the app on new devices immediately from there. Still, the Tracked Channels (UTM) list shows no entries.
A bit more background that may be relevant:
My app itself does not use the Google Analytics SDK and does not register a receiver for the INSTALL_REFERRER intentI would assume that the Play Store handles the links directly without requiring app interaction, especially since it can track store listing views that don't lead to installs, but maybe this is incorrect? Or maybe the store disables tracking based on the app manifest?
I opened the links in Chrome on my PC and clicked "Install" thereMaybe the links only get tracked if they are opened in the Play Store App on the actual device? Seems strange, but I am running a test on that right now, the data just hasn't updated yet.
The tagged installations I did were on days that have been processed alreadyIt sometimes takes Google a long time to update the "Performance" data, but the data I can see already includes this Sunday and the tests were done on Friday. So, unless the UTM tracking data takes even longer to get processed, it should already show up.
Do I need to enable something somewhere for this to work? Or am I doing something else wrong?
UPDATE 1:
Meanwhile, one entry has started showing up in the Tracked Channels (UTM) list. Unfortunately, as the help-text states, "UTM-tagged links that have a single store listing visitor [...] are included in the “Other” category." So I have no idea which of my test links it is, if any. The entry is only showing as a Store Listing Visitor, but not as an Installer.
The last day included in the stats is Wednesday (supposedly), which is also the day when I did the test of opening the link directly in the Play Store app on a device for the first time. I did install the app during that visit, but it was after I had uninstalled a previous installation.
So, here's what I learned from this:
It doesn't look like there is some on/off switch for UTM tagging that I need to enable.
Including the Analytics SDK and registering an INSTALL_REFERRER is not strictly needed for just the tracking of Store Listing Visitors, but it might be needed to track Installers/Buyers.
There may be a difference between visits to tagged links from a PC vs. from the Play Store app on a device.
This leaves the following questions:
Are UTM links only tracked by the Play Store app, or also by visits to http://play.google.com/...?
Does an app need to use the Analytics SDK to forward information about installs and purchases to the Play Store, or do these get tracked independently of the app like the store listing visitors?
Is only the first installation of an app on a specific device counted under Installers, or is a fresh install after an uninstall also counted? How about after a factory reset of the device?
Bonus question: Is there a way to expand the "Other" category? :)
UPDATE 2:
Now I'm back to square one: 3 days ago, I opened more test-links on different devices (including the one that I thought was the one that showed up last time), directly in the app store, installing the app immediately. The data shown includes everything up to and including two days ago, so these visits and installs should be tracked by now. Yet, the list does not show any additional entries beyond the one from update 1 above.
So, either I have absolutely no clue what should be going on, or this whole tracking system is one giant buggy mess... Some things I've read in random forums suggest the latter, but maybe I am missing something, too?
UPDATE 3:
This is getting stranger and stranger. Now, all of a sudden, I see an entry showing 14 store visits and 10 installs for "zedge/android"! Why would someone make their own utm tagged link for my app?!? On top of that, none of my other tests have ever shown up (still just the original entry under "Other") and I don't even see the 10 installs in the statistics... Looks like this whole thing is just plain broken... Correction welcome.

We're in the same situation too now. No Google Analytics set up, need to run some ads this weekend, so I'm going to try to use UTM tags to track the app installs.
There may be a difference between visits to tagged links from a PC vs.
from the Play Store app on a device.
Found this in their documentation
"Note: Over-the-air and web (play.google.com) impressions aren’t
tracked on your app’s User Acquisition page at this time."
If you want, send the link over and I can test it out.

Before direct user to Google Play app page, send GET request with UTM params to your own site. Register this site to Google Analitics. It will count page visits only.

I am going through the same problem. I wanted to test if the UTM source and UTM campaign from the new Dashboard required some SDK or API installed in the app itself. So I contacted Google Play Devs, I asked specifically if we needed Google Analytics and their response was:
this not the case and also there is nothing further that you can add to the app itself.
I did try downloading my own app and sent the link over to a couple of dozen people (bare in mind that the app does have a Google Analytics setup, but it is from 2016, so old version) with the following link
Power my Robot with UTM links setup
I put random words, and all the visits and downloads on both UTM Campaign and UTM Source showed under "Other" and not the words I put. I managed to get around 20 downloads from this link.
However, after questioning Google why it was showing under "Other" and not the word I put in the link, they said it is because of a minimum threshold, which they don't know the amount.
As mentioned above, I used this form to get the Google Play with the UTM tags.
And also, I agree with a comment above, that Apple simply works. From the campaign section in the dashboard, you can open the "Link Generator" and they specifically say that the minimum amount in order to show the number is at least 5 installs using the link in order to protect users' privacy. Google Play can learn something from Apple in this case.
I will try to keep this updated if anything changes on my stats. And feel free to click on the link above and install the app, open and then de-install, just to build up the numbers and see if I can cross the threshold and discover what is the minimum amount they require.

I confirm that the Google Play Store UTM tracking doesn't work with your configuration, as I have the same (no Google Analytics SDK, but firebase-core) and I can't see any installation listed in the Acquisition view of the Play Store.
I note that the Play Store documentation part about UTM tag has a link to an url builder on the Google Analytics Guide, so may be the solution in to install GA SDK.

Have found google page that suggest how to build url with utms: https://developers.google.com/analytics/devguides/collection/android/v4/campaigns?hl=es#google-play-url-builder
This is an example:
https://play.google.com/store/apps/details?id={application_id}&referrer=utm_source%3D{source_id}%26utm_medium%3D{medium}%26utm_term%3D{term}

Remote update app across multiple devices

I am currently investigating ways of remotely updating an Android app installed on a number of devices. The app in question is to be used on phones which we will provide to a number of demonstrators as part of product presentations. For this reason we don't want to publish the app on Google Play to be available for the public at large.
I've read that you can restrict access to the device on Google Play, but only according to criteria such as location, device type, android version, etc. Another way is to set up a version for beta testing, for which you can select testers, however this is only available to those who are part of a Google group or a Google+ community (according to here).
I've come across another post which details how to install an apk programmatically, however it appears to install the apk automatically, ie it doesn't appear to check whether or not the update is actually a new version.
One idea I have in mind is to upload new version on a repository and broadcast to devices which have the app installed, of which we have stored device ids. Is this possible?

What we do is sync periodically to a remote server during data entry on the app. During this sync, we check to see whether the device has the latest version of the software. If it doesn't, the new apk is downloaded and the user is prompted to install the software.
This is accomplished using a separate installer app we created. We have a service that keeps the app alive in the background, so it looks like the user never actually leaves the app during the install.
Would be happy to post code on the installer.
You can see the self installer here: https://github.com/techartist/SelfInstall-Jelly-Bean/

You should try Beta by Crashlytics, it's email-based.

You should try beta or alfa testing in gplay.
Also you can hardcode the date of ending and not to open application after this date.

Facebook Mobile app install ad tracking (without SDK)

What are the alternative ways for us to track downloads without installing the FB Android SDK (we prefer not using SDKs due to various reasons)? Ideally, we want to route the click to our tracking server prior to sending the user to the Play Store, but could settle with adding a referrer without routing the user to our tracking server. If the latter is an option, where in the setup do we specify the referrer value?

It would appear you could also use the Google Analytics SDK to capture the Intent containing referral data.
Essentially you'd create a BroadcastReceiver (AnalyticsReceiver/CampaignTrackingReceiver) that listens for the installation event and passes and Intent with referral data after install to the app.
Valuable information regarding this method can be seen in the links below:
How to test android referral tracking?
https://support.google.com/analytics/answer/3389142?hl=en