Developer Assistant is a powerful on-device debugging companion for Android developers, testers, and designers. It lets you inspect view hierarchies, verify layout, and preview translations directly on your device, with no root required and offline processing. The app carries a solid 4.28 rating from 1,552 users and has over 100,000+ total downloads, with 690 in the last 30 days.
Pros & Cons
On-device inspection without root
Wide support for Views and Fragments with on-device tooling
Privacy-focused: offline processing by default
Optional Accessibility Service to boost accuracy on non-standard apps
Limited support for Android Compose, Flutter, and Web apps compared to some competitors
No built-in AI-assisted features or code editing capabilities commonly found in rival tools
Not currently listed in any top app lists
About Developer Assistant
Developer Assistant is a tools app developed by Jarosław Wiśniewski.
Download Statistics
Developer Assistant has been downloaded 240 thousand times. In the last 30 days, the app was downloaded 690 times.
User Ratings
Developer Assistant is rated 4.30 out of 5 stars. The rating is based on 1.6 thousand ratings.
App Information
Developer Assistant is FREE to download. The APK download size is 6.17 MB. The latest version available is 1.4.2. The last update was on November 18, 2025.
Technical Requirements
Developer Assistant requires Android 8.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play January 2018.
Description
A powerful debugging app for Android. Developer Assistant makes debugging native Android apps as simple as debugging web pages using Chrome’s Developer Tools. Allows you to inspect the View hierarchy, verify Layout, Style, preview Translations and more. Everything can be done directly from the mobile device. Best suited for apps based on Views and Fragments, with limited support of technologies like Android Compose, Flutter and Web apps.
Developer Assistant uses a mixture of official Assist and Accessibility API, augmented by sophisticated heuristics. This combination helps to show at runtime more than possible for other tools. It’s tailored to increase productivity of professionals like Developers, Testers, Designers and Power Users in their day to day geeky tasks.
Developer Assistant is… right, the assistant app, you can invoke it at any time by a simple gesture like long pressing the home button.
INSPECT NATIVE AND HYBRID ANDROID APPS
Developer Assistant can inspect Android applications based on the official Android SDK. It is best suited for apps based on Views and Fragments. Has also limited support for Android Compose, Flutter, Web-based apps and webpages.
KEEP CALM & PRIVACY
Developer Assistant DOES NOT require root. It respects system security and user privacy. Any data collected from the screen is processed locally (offline) and only on explicit user request - when the assist function is invoked. For basic operation, Developer Assistant needs to be chosen as the default Digital Assistant app. Optionally, it may be granted with Accessibility Service permission (which increases accuracy of inspection for non standard apps).
WHAT YOU GET FOR FREE
A 30 day trial of probably the most advanced assistant app dedicated to Android Developers, Testers, Designers and Power Users. After this period, decide: get a professional license or stay with free, a bit limited, however still usable application.
CHECK CURRENT ACTIVITY
Developers can check the class name of a current activity, especially helpful for larger projects. Testers will appreciate a unified solution to access the app version name, version code along with common actions like ‘app info’ or ‘uninstall’.
INSPECT VIEW HIERARCHY
Testers writing automation tests and developers chasing bugs can inspect the hierarchy of elements displayed on the screen, directly from the mobile device. The concept is similar to the inspection of web pages with well-known dev tools shipped with the leading web browsers.
✔ Inspect view identifiers, class names, text style or color. ✔ Preview the best matching layout resources displayed next to their root views.
VERIFY LAYOUT
Designers, testers and developers can finally check the size and position of various elements presented directly on the mobile device. Did you ever wonder what is the exact distance of a given button to a given text label on a particular device? Or maybe, what is the size of a particular element in density points? Developer Assistant provides a toolkit to help verify and satisfy requirements from designers like the pixel or rather the DP perfect design.
SEE CONTEXT OF TRANSLATIONS
Developer Assistant gives translation offices the possibility to display translation keys next to text elements, directly on a mobile device. Translators get what’s the most important in order to provide a quality translation: the context where a given text is used.
✔ Translation keys displayed next to text elements. ✔ Translations for other languages can be previewed (no need to change the language of a mobile device). ✔ Minimum and maximum length among existing translations.
AND MORE...
Stay tuned for new features to come!
LINKS
✔ The project home page: https://appsisle.com/project/developer-assistant/ ✔ The wiki addressing common questions: https://github.com/jwisniewski/android-developer-assistant/wiki ✔ Example usage on a video tutorial for designers (made by Design Pilot): https://youtu.be/SnzXf91b8C4
Recent changes: 1.4.x
✔ Improved support for Android Compose, Flutter and Web apps - if you were not happy from the past experience, try the new integration with Accessibility service, which helps to patch view hierarchy, where it was inaccurate / missing.
✔ Improved accuracy of XML layouts prediction.
✔ Improved detection of string resources - works well with Android Compose.
✔ Updated privacy policy (app behaviour did not change).
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Would you add text copyable on your app, when I press & hold on Hierarchy & App Activity, when looking through to have an option to copy to clipboard?
★★★★★My Self· Apr 5, 2026
It's the best app for modders. But, I have a suggestion to the developer. Please add root access to the app so that the rooted android users can use it without accessibility. Thanks!!
★★★★★Велин Ловчев· Jul 9, 2024
I like this unique app alot! Small request Due to my setup, I will find it immensely helpful to be able to summon the assistant through an app activity, if possible.
★★★★★Amir Hossein Ghasemi Moroodi· Nov 1, 2023
It can't detect views created in compose while you can find the views in the hierarchy via code But anyway, it is one of the best tech product I ever used, keep going :)
★★☆☆☆Omdeepak Kumar· Dec 7, 2025
Show nhi karta setting me assistant option nhi aata
★☆☆☆☆Ritesh Kumar· Aug 4, 2023
This app is good, but there is one big problem when any popup (other tab on main screen like while deleting a file it shows a tab how much it completed) comes in an app it doesn't detect it and doesn't show code instead it automatically detects background tab (first tab).
★☆☆☆☆Andreas Lindgren· Nov 5, 2024
Could you please write texts that make any sense? "In this limited mode, your assistant can be a bit sleepy. However, when awake, he will stay on duty." Are you telling me I need to buy a license to use this or are you telling me I need to do something else? The same thing goes for the "intro" which makes absolutely zero sense. What is your goal here? Be as unclear as possible?
★☆☆☆☆Celeron· Dec 10, 2023
It asks you to select it as an assistant app, but it's not in the list. It is in the voice recognition list but can't be selected.
Google Play Rankings for Developer Assistant
This app is not ranked
Technologies used by Developer Assistant
17 permissions·23 libraries
Subscribe to see full permission and library details
Trust & Safety: No root access is required. Data captured during on-device inspection is processed locally and offline, unless the user explicitly invokes the assist function. Optional Accessibility Service permission can improve inspection accuracy for non-standard apps. The app relies on official Assist and Accessibility APIs, reflecting a privacy-conscious and security-aware approach.
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