Leading Alternatives to Greta.sh for Your Business

Codename One is an open-source mobile-first solution for developing high quality cross-platform native apps. Trusted by 40k+ developers, this mobile toolkit offers a rapid cross-platform app development service based on Java or Kotlin with a 100% code reuse facility. Furthermore, using the Codename One simulator, one can write, debug and test apps inside IDE (IntelliJ, Eclipse, VSCode or NetBeans), without the headache of maintaining native SDKs. The toolkit also provides a wide range of widgets designed for mobile apps to build beautiful UI. Codename One provides a rich ecosystem of native and generic add-on libraries/plugins which can be easily extendable. Also, developers can make changes in their Java/Kotlin source code that can be applied to apps that are present, at the move. One notable aspect of this open-source mobile-first toolkit is that its core is free along with the GPE +CE license. The best part of Codename One is that the apps are compiled into 100% native code to be blazing fast.

Gadget is an all-in-one platform for building, running, and scaling web apps with AI. Offering best-in-class infrastructure, built-in integrations for essential features like authentication and third-party API connectors are handled seamlessly, so one can focus on innovation. The platform includes a powerful assistant packed with the resources, tools, and conventions needed to streamline the development process. Its integrated development environment (IDE) provides everything required to code, debug, and deploy efficiently. Collaborate effortlessly with the team without workflow interruptions, and test the APIs instantly using the built-in JavaScript and GraphQL playgrounds. Troubleshooting becomes hassle-free with an embedded logging tool that includes advanced search and filtering capabilities. Whether launching the first app or scaling a complex project, Gadget simplifies the process, giving developers the ultimate toolkit to bring their ideas to life.

Mobsted is a platform of Progressive Mobile Apps that enables users to visually build and run PWA apps for platforms such as Android, iOS and messenger bots. The platform is free to try and can be easily integrated with any backend systems. All the features make it relevant for small & medium businesses, digital agencies and integrators, and large businesses & enterprises. The apps can be easily launched via a smart link that can be delivered via both online and offline channels. And with automatic and smart authentication, users do not need to do any extra steps. With dedicated visual front end tools, app owners can create and modify any design of an app. They can also use automatic back-end data structuring along with a codeless tool to introduce any necessary changes. Other productive features include managing roles and permissions for end-users and deployment in any private cloud with the Docker technology.

TravDigi is a digital hotel check-in app that gives every traveler a verified digital traveler identity — enabling QR code hotel check-in and contactless hotel check-in that replaces paper forms at any hotel in under 20 seconds.