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The Firebase Blog
Some Tips for Boosting your App's Quality in 2017
January 4, 2017
Doug Stevenson
Developer Advocate
I've got to come clean with everyone: I'm making no new year's resolutions for 2017. Nor did I make any in 2016. In fact, I don't think I've ever made one! It's not so much that I take a dim view of new year's resolutions. I simply suspect that I would likely break them by the end of the week, and feel bad about it!
One thing I've found helpful in the past is to see the new year as a pivoting point to try new things, and also improve the work I'm already doing. For me (and I hope for you too!), 2017 will be a fresh year for boosting app quality.
The phrase "app quality" can take a bunch of different meanings, based on what you value in the software you create and use. As a developer, traditionally, this means fixing bugs that cause problems for your users. It could also be a reflection of the amount of delight your users take in your app. All of this gets wrapped up into the one primary metric that we have to gauge the quality of a mobile app, which is your app's rating on the store where it's published. I'm sure every one of you who has an app on a storefront has paid much attention to the app's rating at some point!
Firebase provides some tools you can use to boost your app's quality, and if you're not already using them, maybe a fresh look at those tools would be helpful this year?
Firebase Crash Reporting
The easiest tool to get started with is Firebase Crash Reporting. It takes little to no lines of code to integrate it into your iOS and Android app, and once you do, the Firebase console will start showing crashes that are happening to your users. This gives you a "hit list" of problems to fix.
One thing I find ironic about being involved with the Crash Reporting team is how we view the influx of total crashes received as we monitor our system. Like any good developer product, we strive to grow adoption, which means we celebrate graphs that go "up and to the right". So, in a strange sense, we like to see more crashes, because that means more developers are using our stuff! But for all of you developers out there, more crashes is obviously a *bad* thing, and you want to make those numbers go down! So, please, don't be like us - make your crash report graphs go
down and to the right
in 2017!
Firebase Test Lab for Android
Even better than fixing problems for your users is fixing those problems
before
they even reach your users. For your Android apps, you can use
Firebase Test Lab
to help ensure that your apps work great for your users among a growing variety of actual devices that we manage. Traditionally, it's been kind of a pain to acquire and manage a good selection of devices for testing. However, with Test Lab, you simply upload your APK and tests, and it will install and run them to our devices. After the tests complete, we'll provide all the screenshots, videos, and logs of everything that happened for you to examine in the Firebase console.
With Firebase Test Lab for Android now available with generous daily quotas
at no charge
for projects on the free Spark tier, 2017 is a great time to get started with that. And, if you haven't set up your Android app builds in a continuous integration environment, you could set that up, then configure it to
run your tests automatically on Test Lab
.
If you're the kind of person who likes writing tests for your code (which is, admittedly, not very many of us!), it's natural to get those tests running on Test Lab. But, for those of us who aren't maintaining a test suite with our codebase, we can still use Test Lab's automated
Robo test
to get automated test coverage right away, with no additional lines of code required. That's not quite that same as having a comprehensive suite of tests, so maybe 2017 would be a good time to learn more about architecting "testable" apps, and how those practices can raise the bar of quality for your app. I'm planning on writing more about this later this year, so stay tuned to the
Firebase Blog
for more!
Firebase Remote Config
At its core,
Firebase Remote Config
is a tool that lets you configure your app using parameters that you set up in the Firebase console. It can be used to help manage the quality of your app, and there's a couple neat tricks you can do with it. Maybe this new year brings new opportunities to give them a try!
First of all, you can use Remote Config to carefully roll out a new feature to your users. It works like this:
Code your new feature and restrict its access to the user by a Remote Config boolean parameter. If the value is 'false', your users don't see the feature. Make 'false' the default value in the app.
Configure that parameter in the Firebase console to also be initially 'false' for everyone.
Publish your app to the store.
When it's time to start rolling out the new feature to a small segment of users, configure the parameter to be 'true' for, say, five percent of your user base.
Stay alert for new crashes in Firebase Crash Reporting, as well as feedback from your users.
If there is a problem with the new feature, immediately roll back the new feature by setting the parameter to 'false' in the console for everyone.
Or, if things are looking good, increase the percentage over time until you reach 100% of your users.
This is much safer than publishing your new feature to everyone with a single app update, because now you have the option to immediately disable a serious problem, and without having to build and publish a whole new version of your app. And, if you can act quickly, most of your users will never encounter the problem to begin with. This works well with the email alerts you get from Firebase Crash Reporting when a new crash is observed.
Another feature of Remote Config is the ability to experiment with some aspect of your app in order to find out what works better for the users of your app, then measure the results in Firebase Analytics. I don't know about you, but I'm typically pretty bad at guessing what people actually prefer, and sometimes I'm surprised at how people might actually *use* an app! Don't guess - instead, do an experiment and know /for certain/ what delights your users more! It stands to reason that apps finely tuned like this can get better ratings and make more money.
Firebase Realtime Database
It makes sense that if you make it easier for you user to perform tasks in your app, they will enjoy using it more, and they will come back more frequently. One thing I have always disliked is having to check for new information by refreshing, or navigating back and forward again. Apps that are always fresh and up to date, without requiring me to take action, are more pleasant to use.
You can achieve this for your app by making effective use of
Firebase Realtime Database
to deliver relevant data directly to your users at the moment it changes in the database. Realtime Database is
reactive
by nature, because the client API is designed for you set up listeners at data locations that get triggered in the event of a change. This is far more convenient than having to poll an API endpoint repeatedly to check for changes, and also much more respectful of the user's mobile data and battery life. Users associate this feeling of delight with apps of high quality.
What does 2017 have in store for your app?
I hope you'll join me this year in putting more effort into making our users even more delighted. If you're with me, feel free to tweet me at
@CodingDoug
and tell me what you're up to in 2017!
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