Updated March 18, 2023
Difference Between Ionic 4 vs Ionic 3
Head to Head Comparison Between Ionic 4 and Ionic 3 (Infographics)
Below are the top 34 differences between Ionic 4 and Ionic 3:
Key Difference Between Ionic 4 andIonic 3
Let us look at the key differences between as below Ionic 4 and Ionic 3:
- Ionic 4 has a version release for every six months, whereas ionic 3 has no release like this.
- @ symbol is used in ionic 4 to start the name of the package. Ionic 3 has no @ symbol in its package syntax.
- Ionic 4 allows updates from each supported framework, whereas ionic 3 does not allow updates from the supported framework.
- Ionic 4 was built to use the web components in the framework. Ionic 3 does not allow the use of web components in its framework.
- Life cycle events used in ionic 3 is updated and used in ionic 4. Ionic 4 uses the events provided by Angular.
- API is promise-based in ionic 4, whereas it is not promise based in ionic 3.
- Ionic 3 navigation was based on a simple stack, whereas ionic 4 uses an Angular router to integrate with the applications.
- App Page module is exported for lazy loading in ionic 4, and the Home Page module is exported in ionic 3.
- The applications are linkable in ionic 4, whereas it is not linkable in ionic 3.
- New pages are pushed to the top in ionic 3, while in ionic 4, pages are arranged in a better manner.
Ionic 4 and Ionic 3 Comparison Table
Let’s discuss the topmost comparison between Ionic 4 and Ionic 3:
|Ionic 4||Ionic 3|
|Ionic 4 do not have the custom style and supports the setup from each framework recommended.||Ionic 3 has a custom style for the folder structure and app set up.|
|Overlay components in ionic 4 are created asynchronously.||Overlay components in ionic 3 are created synchronously.|
|Navigation is more consistent in ionic 4.||Navigation is not consistent as ionic 4.|
|Ionic 4 has a rich animation.||The animation is not good in ionic 3.|
|The base framework need not be bonded in ionic 4.||It is necessary to bind the base framework in ionic 3.|
|The command-line interface has many features in ionic 4.||The command-line interface has less features in ionic 3.|
|NavController and ion-nav are not used in ionic 4.||Ionic 3 uses NavController and ion-nav.|
|The app-routing module is created automatically in ionic 4.||The app-routing module is not created automatically in ionic 3.|
|ngOninit and ngAfterViewinit are used in ionic 4 for navigation lifecycles.||ionWillLoad is used in ionic 3 for navigation lifecycles.|
|Router-link helps to navigate between pages in ionic 4.||In ionic 3, click helps to navigate between pages from the start of the page.|
|Reactive forms have to be imported to each page.||App module has to be imported on each page.|
|Ionic 4 can work with multi frameworks.||Ionic 3 cannot work with multi frameworks.|
|Ionic 4 is faster.||Ionic 3 is not faster.|
|Full-screen components are present in ionic 4.||Full-screen components are not available in ionic 3.|
|Rows and columns are displayed on top of the app using an ion-picker.||Ionic 3 does not have an ion picker option.|
|Material design interaction is better in ionic 4.||Material design interaction is not good in ionic 3.|
|When the URLs are matched, the route is shown clearly by the ion router.||Ion router is not available in ionic 3.|
|The items are reordered using ion-reorder in ionic 4.||The items are not reordered by itself.|
|Search bars present help in searching the texts using different styles.||The search bar does not have different styles in ionic 3.|
|Child contents are shown automatically.||Child contents are not shown automatically in ionic 3.|
|CSS variables become the main component in ionic 4.||Ionic 3 does not have CSS variables.|
|Colours can be changed frequently in ionic 4.||Colours cannot be changed frequently in ionic 3.|
|Icons developed in ionic 4 can be used in android and desktop apps.||Icons developed in ionic 3 can be used only for their own app building.|
|Conflicts in the same library are not handled well in Maven.||Conflicts in the same library are handled well in Ant.|
|Placeholder content is displayed using skeleton text in ionic 4.||Placeholder contents are not displayed in ionic 3.|
|to list items in ionic 4, <ion-item> is used.||In order to list items <button> is used.|
|Popover dialogue controls the overflow actions in ionic 4.||Popover dialogue is not available in ionic 3.|
|Ionic 4 can be rightly called a standalone library of web components.||Ionic 3 can be called as the framework coupled with Angular.|
|Ionic 4 can either work with a framework or without a framework. A framework is considered optional.||Ionic 3 works only with a framework. The framework cannot be considered optional.|
|Ionic CLI tool is developed, which provides helpful commands to developers.||JIonic 3 does not have a CLI tool with commands. Angular CLI helps in this regard.|
|The built-in server is available in ionic 4.||Ionic 3 does not have any built-in servers.|
|Single ion router component is used in ionic 4 that helps in routing the tools.||Components are pushed directly for navigation in ionic 3.|
|Applications are split up into multiple bundles to differentiate between them.||Applications are transferred only as a single bundle, so that differentiation is not possible.|
|Ionic 4 uses an Angular style guide for file structure.||Ionic 3 has its own file structure and style.|
Migration from ionic 3 is easy as it is done by creating new applications and installing dependencies. Ionic 4 uses Stencil for code refactoring. The ionic framework is open source and can be used by anyone. Every new version is developed with new enhancements in the framework.
This is a guide to Ionic 4 vs Ionic 3. Here we discuss Ionic 4 vs Ionic 3 key differences with infographics and comparison table. You can also go through our other suggested articles to learn more–