ActivityLens: Activity Viewer

ActivityLens is the fastest way to see the current activity and foreground package name of any app running on your Android device. Open the app, start the service, and a lightweight floating overlay appears instantly, showing you exactly which activity class and package name is on your screen right now. No root. No ADB. No computer required.
If you are an Android developer, QA tester, or power user who needs to know what is running on your screen, ActivityLens gives you that answer in real time without slowing down your workflow.
See the Current Activity in Real Time
The floating overlay updates the moment you switch apps or navigate to a new screen. You see the current activity class name and foreground package name live, as it changes. Tap to copy with one tap. The overlay is resizable, movable, and adjustable in opacity, so it fits your screen without getting in your way.
ActivityLens is the current activity monitor Android developers use when they need to debug navigation, verify screen transitions, or quickly grab a package name during a testing session.
Activity Log and Copy History
Every activity change is recorded in the activity log with an exact timestamp. Scroll back through your full navigation history, search by package name or class name, and filter results using regex patterns. When you find what you need, copy it instantly.
The copy history feature saves every package name and class name you copy during a session. Nothing gets lost between context switches. Every entry is labeled as a package or class, so you always know what you copied.
App Explorer and Component Inspector
ActivityLens includes a full app explorer that works as an Android component inspector. Browse every installed app, including system apps. Tap any app to see all declared activities, services, receivers, and providers.
For each app, you can view the full AndroidManifest, check every declared permission, read build info including version code, target SDK, and install source, explore intent filters with URI and MIME type details, test deep links by firing intents and seeing live results, and generate ready-to-run ADB shell commands for any activity with one tap.
The activity launcher lets you open any exported activity directly from ActivityLens without writing a single ADB command.
Built for Android Developers and QA Testers
ActivityLens is built for the real situations that developers and testers face every day. Use it to debug broken navigation between activities and fragments. Use it to verify deep link entry points and fallback routes. Use it to confirm which activity launches when a notification is tapped. Use it to track screen transitions during onboarding flows. Use it to prepare activity names and package targets for automation scripts. Use it to inspect third-party app behavior during integration testing without ADB.
If you build or test Android apps, ActivityLens saves you time every single day.
Activity Filters
Filter out the noise. Block specific apps or class name patterns from appearing in the activity log. ActivityLens shows you only what matters.
No Root. No ADB. No Setup.
ActivityLens works on any Android device running Android 12 or higher. Grant the Accessibility Service permission once, and the current activity viewer starts working immediately. No root access. No connected computer. No extra configuration needed.
Accessibility Service Disclosure
ActivityLens uses the Android AccessibilityService API only to detect window state changes. This is how the app identifies the current foreground package name and activity class name in real time. ActivityLens does not access, collect, store, or transmit any personal data, screen content, or user input. All processing happens locally on your device. The permission is used for one purpose only: detecting which app and activity is currently on screen.
Remove Ads
ActivityLens includes an optional one-time Remove Ads in-app purchase for a clean, ad-free experience.