JSPatch vs React Native
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
Lets iOS apps run JavaScript that calls and replaces Objective-C code, mainly for hotfixes.
Open source · MIT
A framework for building native Android and iOS apps using React and JavaScript.
The short answer
Choose JSPatch if you need…
- iOS developers who want to patch a live app's Objective-C code without resubmitting
- Teams studying how Objective-C runtime bridging to JavaScript works
- Developers maintaining older iOS codebases that already use CocoaPods or manual integration
Choose React Native if you need…
- Web developers who already know React and want to build mobile apps
- Teams that need one codebase for both Android and iOS
- Developers who want quick feedback through Fast Refresh while editing JavaScript
- Projects that need access to platform APIs through Native Modules
Side-by-side
| JSPatch | React Native | |
|---|---|---|
| Type | Library | Framework |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 11.3k | 127k |
| Setup difficulty | Advanced | Intermediate |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | Objective-C | C++ |
| Last code update | 6 years ago | 4 days ago |
What each one is
JSPatch
JSPatch is a small engine for iOS apps that connects Objective-C and JavaScript through the Objective-C runtime. Once the engine is included, JavaScript can call any Objective-C class and method, and can replace existing Objective-C methods. The README says it is mainly used to fix bugs in a shipped iOS app without a full App Store update.
React Native
React Native lets developers build apps for Android, iOS and other platforms using React, a popular JavaScript UI library. The code is written in JavaScript but the interface is drawn with the platform's own native UI elements. Developers use it to share most of their code across platforms instead of writing separate apps in each platform's own language.
Best for
JSPatch
- iOS developers who want to patch a live app's Objective-C code without resubmitting
- Teams studying how Objective-C runtime bridging to JavaScript works
- Developers maintaining older iOS codebases that already use CocoaPods or manual integration
React Native
- Web developers who already know React and want to build mobile apps
- Teams that need one codebase for both Android and iOS
- Developers who want quick feedback through Fast Refresh while editing JavaScript
- Projects that need access to platform APIs through Native Modules
Strengths
JSPatch
- Small engine that uses the built-in JavaScriptCore framework
- Can call any Objective-C class and method by name from JavaScript
- Simple integration through CocoaPods or by copying three files
React Native
- Native UI rendering, so apps use the same platform APIs as other native apps
- Fast Refresh applies JavaScript changes without rebuilding the native app
- Large ecosystem and documentation, with an MIT license
Not ideal for
JSPatch
- Apps targeting current iOS releases, since the README lists support only up to iOS 7+ and does not confirm newer platform support
- Teams that need App Store-compliant hotfixing, because the README asks developers to use the JSPatch platform instead of integrating it directly and links an FAQ about Apple policy
- Non-iOS developers, since the project is Objective-C and targets iOS
React Native
- People who only want to build websites, since this targets native mobile apps
- Developers who need to write everything in one native language and avoid JavaScript
- Teams that cannot take on the setup work of native Android and iOS toolchains
Trade-offs
JSPatch
- The README says the project is still in development and gives no recent release information
- Its own README asks developers to use the hosted JSPatch platform for safety and control, which limits direct self-hosting
- Targets old iOS versions and armv7 or arm64 architectures, so modern toolchain support is unclear
React Native
- Requires working knowledge of React and JavaScript, plus native tooling for Android and iOS
- The README recommends using a framework such as Expo for most apps, which adds another layer to learn
- Some native-level problems still need platform-specific knowledge
Getting started
React Native
Create a new Expo project (recommended by the README)
npx create-expo-app@latestFrequently asked questions
What is the difference between JSPatch and React Native?
JSPatch: Lets iOS apps run JavaScript that calls and replaces Objective-C code, mainly for hotfixes. React Native: A framework for building native Android and iOS apps using React and JavaScript. JSPatch suits ios developers who want to patch a live app's objective-c code without resubmitting, while React Native suits web developers who already know react and want to build mobile apps.
Are JSPatch and React Native free?
JSPatch: Free and open source. React Native: Free and open source.
Which is easier to set up, JSPatch or React Native?
React Native is easier to get started with (rated intermediate); JSPatch is rated advanced and usually needs more setup.
Is JSPatch or React Native more popular?
React Native has more GitHub stars (127k) than JSPatch (11.3k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to JSPatch and React Native?
Other options people compare them with include NativeScript, Capacitor, Expo, Avalonia.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.