While developing the same software for iOS and Android, as well as web and desktop, you can collaborate with a mobile app outsourcing company that provides cross-platform development. It will not only save your time and effort by writing a single iteration of the code for many platforms, but it will also be easier for you to maintain and upgrade it afterwards. Such companies, with a workforce of hundreds of developers and designers, also ensure that your apps are aesthetically and functionally consistent. Deploying your product to various platforms via native development might get messy and involve unnecessary efforts. These efforts can be saved by adopting a  cross-platform strategy and handing it over to an IT outsourcing company. 

As the demand for cross-platform applications grew outside the app market in 2021, the figure reached $7.9 Billion. While cross-platform development is increasingly adapted, why restrict it to only Flutter, Xamarin, and React Native when there are a slew of other options? 

Here are some lesser known cross platform tools for app development:

1. IONIC

Ionic is one of the greatest hybrid app architectures since it has all of the desirable qualities: it’s open-source, simple to maintain, expandable, and easy to follow. Ionic is a collection of HTML, CSS, and JS components for mobile development that aids in the creation of interactive apps. Ionic comes with a robust range of functionality and tools, including progressive web UI components and layouts, as well as support for material design. It also gives constant updates and information from the tech community to its consumers. Native functions, customised motions, and customisable tools are all available in Ionic-based hybrid apps, which improve user-friendliness. 

2. ADOBE PHONEGAP

The best android app development software in 2021 will be PhoneGap since it’s an Adobe product. It’s built on the open architecture Apache Cordova, which offers you access to the whole PhoneGap toolkit; it helps speed the app creation process by providing a variety of choices; and debugging tools enable you analyse HTML, CSS, and debug JavaScript scripts. It offers native plugins and containers for each digital application, allowing developers to add more features and access device capabilities including the cameras, microphone, accelerometer, compass, and file system. 

3. APPCELERATOR

Appcelerator is a cross-platform mobile app development platform that speeds up the development process by simplifying it. It makes use of a single JavaScript code to allow you to create native-like programs that run in the cloud. Another advantage of using an Appcelerator is its ability to create apps for any gadget or operating system. It finds problems, crashes, and makes tweaks to enhance the overall speed of the program. Appcelerator provides access to Hyperloop, one of the best cross-platform APIs for developing multi-platform apps.

4. SENCHA

Sencha is the dominant player in enterprise-grade application development because its complete platform allows teams to focus on developing apps rather than building frameworks. Developers may create data-intensive cross-platform online and mobile apps with this tool, which is built on contemporary web technologies such as ES6, HTML5, JavaScript, and CSS. The service, which was formerly known as Sencha Touch, is no longer recognized and has been combined with Ext JS to become Sencha Ext JS. It comes with a suite of tools and themes that help with productivity, installation, design, theming, and troubleshooting.

5. CORONA

Corona SDK is a cross-platform SDK that allows you to develop applications and games across multiple platforms, including mobile devices, desktops, and televisions utilizing just one codebase. Because Lua is a lightweight scripting language, Corona optimizes app performance every step of the way. Corona is a cross-platform development tool which is primarily used in 2D gaming due to its ability to develop high-quality graphics and games at high speeds.