Synopsis– The prominence of mobile phones means that a specific level of the mobile experience is expected from both the websites and applications. The standard of the PWA (Progressive Web Application) has been designed to satisfy such needs, joining the best of both solutions. The idea has spread out into TWA (Trusted Web Activity) obscuring the lines between the web, mobile or desktop applications even more. Seeing the above scenario, the idea has cultivated to know in detail about the PWA and TWA and regarding their pros and cons for better understanding of using apps and websites. What is TWA?
TWA application attempts to diminish the gap between web and native experience and also it can tackle issues. For example, updating content on the fly while taking care of the storage issue for your end-users.
But what is TWA and its uses?
Trusted Web Activities (TWA) are another approach to incorporate your web application content with your Android application practicing a protocol dependent on Custom Tabs. Despite the fact that Android applications regularly include web content practicing a Chrome Custom Tab (with URL bar) or Web View, a TWA will run your application on full screen in the default browser (after the new changes, TWA will open chrome browser regardless of not the default) and thus can use the provisions and performance optimizations of the browser. A TWA is a browser without its own graphic interface (URL bar and menu) working in a verified mode (Trusted). It can associate exclusively with a particular domain to give the impression of browsing to a complete
mobile application. An application i.e. a PWA- based page can be installed on a mobile phone. If by chance we choose to change the device, this installation can be re-made as the TWA is connected to the user’s Google account. Such an application has a symbol that can work in full-screen mode, permits access to specific device functions, and works offline. According to the user’s perspective, it’s basically a standard application.
Why is TWA useful?
The fundamental difference is TWAs running on full screen, no browser UI is apparent, and no more URL bar like with the CCT. This can be useful for various situations where CCT is involved now; showing terms and service, privacy policy, and other static contents. It should be refreshed across all variants of your application and can be accessible offline. This is a typical situation as checkout streams can be extremely intricate, changing every time, and keeping highlight equality between your site and
native applications can be challenging. For an easy component expanding the capacities of your native application, it might be a test to pass parameters to the web content and getting results from the TWA. The only option is to utilize query parameters and intent of URIs individually.
Capabilities in TWA
TWA divides the browser data like cookies and local storage within the application. So ifyou are signed in to a browser internally, you’ll automatically be signed in to the TWA application too. Similarly, let’s look into capabilities available in TWA i.e. both same as and better than native apps.
Capabilities in TWA same as native app:
Accessible at the tap of a button:
Since it has a “launcher icon” because the TWA application will be treated like any other application in the Android framework.
Offline mode:
With the assistance of service-worker caching, the application will therefore also exercise in offline mode. Quick Loading:
Native applications have all in one package, which means the web application can cache its assets (JS, CSS, and so forth) in the browser or service-worker cache. Overall, the web application’s TTI (Time to Interactive) ought to associate with 5 secs for an incredible loading experience.
Maintain user’s attention
Applications practices Push Notifications for re engagement, the similar exercise can be accomplished by web applications with service-workers. Native Push Notifications support is also schemed for TWA.
Profound linking:
Any domain links can be revealed in your TWA application by digital asset links coupled with an intent filter in your manifest file.
Capabilities better than Native apps:
Update on the fly:
If a buggy code is sent in a native application, you can’t do everything except trust that your clients will refresh the application. This isn’t the situation with TWA applications since they are only the web application wrapped within an application, so the code can be refreshed anytime like the web.
No Backward compatibility:
There are no version checks in APIs created for TWA applications as they all will be running a similar code.
Size issues:
Since native applications can be transported with all the machinery expected to run, their size normally arrives at some MBs. TWA applications can run within a browser and urge for a webpage, no code is sent with the application and consequently, the entire application size gets diminished to 200-300 KBs.
What are the criteria for a web app to be turned into a TWA?
At present, there are no qualifications for content opened in the review of Trusted Web activities. It implies any web application that can be utilized to fabricate a TWA application. However, clients might dislike your application in case it is showing a URL bar within an application, and is not associated with a web message when offline, setting aside a lot of effort to load or transition between pages are not smooth like a native application. So to make a nice TWA application, absolute minimum capabilities ought to be:
- Open and operable even offline.
- Must have digital resource joins set up.
- To function as a solid, quick, and drawing in standalone part inside the launching application’s stream.
- If the web application is as of now a PWA (Progressive Web Application) with a decent score on the lighthouse then at that point, you simply need to set up digital asset links.
TWA benefits in product building
As per Google “Utilizing a TWA opens up a scope of new promotional opportunities for PWA applications. Distributing a PWA in the Play Store considers essentially larger-scale promotions, both organic and inorganic campaigns like Universal App Campaigns”.
When company needs TWA:
- You’re anticipating upgrading your WWW service, yet also plan to continue to react to the necessities of clients who like to download applications from the Google Play Store.
- You’re carrying out a PWA from the beginning and need to use all channels to arrive at your clients.
- Application’s content should be well indexed by internet search engines.
- You’re anticipating creating a mobile application only and might want to make it happen rapidly and reasonably.
- When already having a native application and might want to offer a lighter form.
- Your present mobile application doesn’t draw in clients.
TWA benefitting my own company:
- A quick and less expensive production process contrasted with native applications.
- Setting the application in the Google Play Store, whenever needed.
- A simple updating process permits clients to get to the upgraded application forms consistently.
- Co-shared data: Application and website data are put away in one spot. This implies that users don’t need to re-emerge into their login data and can undoubtedly track down their past content.
- Essentially smaller application size as compared with native applications.
When should I consider TWA?
After knowing the scenario about the TWA in the above, there will be a question in our minds that why would you have to practice one if clients can get to your
web application in the browser? The appropriate answer is that you may not require one, it relies upon how you need your clients to find and access your application. Here are a few circumstances where they could be useful to you:
- You need to use the Google Play Store as a promoting channel or acquiring client’s input. For instance, if you have made a real estate web application and you need to show up in the search results of the Play Store “real estate” category.
- You need “add to home-screen” conduct by default. For instance; applications are utilized firmly like a messaging app.
- You have a current native application that needs to blend or increase with cross-platform web capacity. If you have made a racing game exercising Android native code, but the menu and leader board are cross-platform web code.
What are PWA (progressive web applications)?
A progressive web application (PWA) looks like a mobile application. They work to exploit native mobile device features without requiring the end client to visit an application store, make a buy and download software locally. A PWA can be situated with a search engine query and got to immediately via a program. The term “progressive web applications” began in 2015 by designer Frances Berriman and Google Chrome engineer, Alex Russell. PWAs removed the requirement for e-commerce merchants to create native app for various mobile operating systems. Like YouTube videos, PWA content is downloaded progressively providing the end-user with a preferred user experience over a traditional site utilizing a responsive design. The objective of PWAs is to blur the difference between native applications and the mobile web by bringing the huge advantages of native mobile applications to the mobile browser. PWAs use standards-based technologies and run in a container i.e. secure and open to anybody on the web. They can send web push notifications, work offline and be available from the home screen like a mobile application from an application store.
What makes an app PWA?
PWAs are not made with a single technology. This is a new way of building web applications, including some particular patterns, APIs, and different components. A PWA web app can’t be recognizable at first glance. It will be viewed if it meets specific needs or carries out a bunch of given elements or not like offline work, installations, synchronization, or push notifications, etc.
Discoverable, for the contents, can be found via search engines. Installable, for accessibility on the device’s home screen or app launcher. Linkable, for sharing it by sending a URL. Independent Network, for working offline or with a helpless network connection. Progressively improved, for usable on a basic level on more established browsers, but completely functional on the most recent ones. Re-engage able, for sending notifications at whatever in case of fresh content. Responsively designed, for usable on any gadget with a screen and a browser; mobile phones, tablets, laptops, TVs, refrigerators and much more. Secure, for the bond between the client, the app, and your server are safe against any third parties attempting to gain access to delicate data. 
SEO for Progressive Web Apps (PWA)
Highlights of PWA
Progressive Web Applications (PWA) consolidate new technologies with established accepted procedures for making authentic, accessible, and engaging experiences. They gift users a native-like experience in a user-friendly select-in installation flow. 1. Authentic
A PWA must launch and provide users with significant content regardless of network conditions. The degree of offline functionality will rely upon the application in which a few applications can work offline, while others have to inform significant placeholder data that they are offline. app break or unresponsiveness is truly unacceptable. 2. Responsive
Progressive Web Applications must have the option to adjust to various screen sizes and orientations, guaranteeing that the user experience is extraordinary for all users. A decent responsive design supports guaranteeing that your application will keep on working with new devices later on. 3. Involving
Generally, native applications have been significantly more captivating than web applications. Having an icon on the home screen makes it simple to get into the application and push notifications will assist with alarming the client of significant data requiring their consideration. With Progressive Web Applications, clients would now be able to get similar advantages with web applications. 4. Safety
Progressive Web Applications are safe by default. The technologies controlling PWA require applications to be served over HTTPS to employ. What Are the Advantages and Disadvantages of PWAs?
To profoundly see how a Progressive Web Application works systematically, the ideal way is to take a look at some genuine lists of pros and cons regarding the model across a kind of business. Therefore, you can experience the new web technology yourself. 
Pros of PWA
Access to target audience
Your objective must be to get maximum clients, and with the web, you can easily achieve the target. Web applications need not be progressive are open all over the place. Countries suffering from poor networks, the progressive web is the ideal option for arriving at more customers. This is also exceptionally good for start-ups in IOS and androids. Suitable speed and size
Native applications occupy a huge load of spaces. Plenty of people couldn’t utilize these applications as they simply need more space on their telephones; therefore, can’t introduce them. On the contrary, PWAs take care of the needs and make it quicker to download. Offline capacity
Many people are downloading PWAs in light of the fact that they can practice them even without data or an Internet connection. In addition, these applications will work even if the actual server is dead. Clients will not lose their content and concentration and thus this adds to the conversion. No interface of app stores
Not all applications are acknowledged by application stores, having tons of rules and regulations with regards to publishing. There are no limitations on the web of PWA and you are the one who is accountable for the entire web procedure. You can also refresh your features right away. Say-yes- to push notifications
push notifications is also a noticeable feature and it permits you to interact with your application effectively and give an astounding user experience. Cons of PWA
Restricted browser support
PWA is Android-driven and doesn’t work with renowned browsers, like IE, Edge, and Safari. On the other side, fresh browser variants of Opera, Chrome, and Firefox support progressive web apps, and others are expected to be in the future. Limited hardware and software
PWA is comparatively new and not yet upheld by all device’s hardware and software. It doesn’t support the practice of GPS, fingerprint scanners, telephone cameras, and other updated devices, unlike native apps. Difficulty in downloads
PWA don’t appear in famous application stores, for example, Google Play and the Apple App Store, which may delegitimize them. Clients directly looking for applications in app stores rather than in search engines, target audience might miss your PWA. TWA and PWA App: Everything you need to know
PWA is a recent web application that has been developed to give a native web application experience to anyone utilizing a browser. TWA development will particularly be valuable for ecommerce and the best Chrome highlights on the application. With both the astounding development practices like PWA and TWA will assist you with improving discoverability while looking for applications by coordinating PWA and TWA. Is proper working PWA enough for TWA?
A TWA will expand the PWA abilities and while executing a TWA, it is prescribed to adjust your PWA and the web application’s productivity or can run a WWW redesign service. This will guarantee the process of the existing website that has the appearance and features essential to work as a mobile application. Which type of features does a PWA should have to be there for basic TWA apps?
Proceeding a verification cycle is a fundamental condition for a PWA to be perceived as a TWA. This process affirms that the application owner is also the owner of the domain connected to that application. Additionally, the website should follow PWA rules: a. Have the right manifest.json. b. Have a functioning Service Worker. c. Keep up with all traffic in HTTPS. d. Practice offline by showing a special website (placeholder). Besides, a TWA application should ensure important execution, including smooth activity, service speed, and the softness of the data transferred. It infers to getting an 80% (or higher) score in Google Lighthouse’s Performance category. Publishing TWA applications in the Google Play Store requires a functioning and paid Google Play developer account. It is utilized to publish subsequent versions of applications and investigate downloads, establishments, and cancellations. It also presents a detailed console for survey user reviews. Does the maintenance of PWA and TWA need a separate team? Web technologies like PWA and TWA and their supporting solutions imply that organizations presently don’t have to keep up with separate teams. PWAs have helped us to foster sites autonomously and mobile applications as changes are carried out in only one spot. Inference to the topic
You can perceive that it is so natural to get a PWA sent to the Play Store. With these, you can get an application into the store without composing any extra code, or modifying the PWA or even composing any Java code for the Android solution. Practicing TWA is a superb way of facilitating a well-written Progressive Web App, and with the work needed to get your application on the Play Store is so insignificant, it is a savvy way of getting exposure on the store. 
