Verify the engine and bundle path
The Hermes documentation describes React Native's bundled engine and default use. It also warns that a custom bundle-loading path can use the engine without taking advantage of the intended precompiled bytecode.
Inspect release build configuration and actual packaged assets, not only a runtime engine flag.
Separate package layers
| Layer | What inspection can reveal |
|---|---|
| Android manifest | Components, permissions and package metadata |
| Native libraries | Engine and native-module architecture payloads |
| Hermes bundle | Bytecode-level application material |
| Assets | Images and other packaged resources |
These layers do not restore the original project structure or development build configuration.
Preserve source maps for your releases
Keep the appropriate source maps and Android/native diagnostic artifacts associated with the exact build. JavaScript stack interpretation and native crash symbolization require different evidence.
Do not publish private source maps by default merely to make a crash report easier to read publicly.
Analyze only authorized artifacts
Use reverse engineering for your own app, a permitted audit or lawful interoperability work. Do not remove licensing checks or redistribute extracted proprietary assets.
A lost source repository is better recovered from backups, CI and source control than from compiled bytecode.
Use APKLint for inventory
The React Native APK Analyzer can help identify likely engine/bundle characteristics. The release guide remains the reference for producing a standalone artifact. APKLint cannot guarantee original-source recovery or prove runtime behavior from the bundle signature alone; validate conclusions against the build configuration and a controlled device test.
Sources and further reading
Reference review: 22 September 2026. Examples illustrate the workflow; check your installed versions, release artifact and account-specific Console requirements before applying them. This guide is not a claim that APKLint executed your project or verified your private account.
Android inspection tools and practical release guides. About APKLint · Report a correction
