Castro Premium - system info

435 reviews
Content rating
PEGI 3
10k+
Downloads
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About this app

Castro is a huge collection of information about your device and a set of tools for monitoring its status. This allows you to check the performance of your device in real-time!

Large collection of the information
Castro processes and displays a huge amount of information, namely:

• Detailed processor statistics (CPU and GPU);
• Battery monitoring;
• Consumption of all kinds of memory;
• Data usage via Wi-Fi and mobile networks;
• Real-time sensors data with useful graphs;
• Detailed information about device\'s cameras;
• Full list of available audio and video codecs;
• Monitoring temperatures of the device;
• And many other features, including DRM and Bluetooth!

The most important thing in the \"Dashboard\"
If you are not interested in too detailed information in a larger volume, you can always use the \"Dashboard\" window, which collects all the most important information - CPU usage, battery status, network usage, and memory load on the device.

More control with useful tools
• Share your device information using \"Data export\";
• Test your display state via \"Screen tester\";
• Check the noise around you with \"Noise checker\".

Even more features with the \"Premium\"
\"Premium\" users will have access to even more features, such as:

• Deep interface customization with various colors and themes;
• Battery monitoring tool to track battery properties;
• Configurable home-screen widget, with information about battery, memory, and more;
• Network traffic speed monitor to track your connection speed;
• CPU usage monitor to keep abreast of frequency usage;
• PDF format for information exporting.

FAQ and localization
Looking for answers to frequently asked questions (FAQ)? Visit this page: https://pavlorekun.dev/castro/faq/

Want to help in Castro localization? Visit this page: https://crowdin.com/project/castro
Learn the vast amount of system information about device and monitor it's state
Updated on
9 Nov 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location, Personal info and 4 others
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

418 reviews
Xenon Rider
27 October 2026
Why is the sole widget so bad and ugly? You would think an app that measures system resources would have a plethora of nicely styled widgets. Bewildering.
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nascent
23 October 2020
Found and love skit. Decided to check out Devs other apps. All look amazing so buying them all. One suggestion is the put the type of all in the name. I use exif editors, phone info and app managers all the time, but will never remember the names of these apps. So would be nice to have the name also include phone info or exif editor and app manager to they're easier to search for on the phone.
19 people found this review helpful
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A Google user
23 April 2019
I'm only buying the premium app just to show my support to an active developer, like with a donation... I have other free apps that do the same. Also do yourself a favor, rename the pro app's shortcut to Castro Pro, so people don't uninstall the wrong one, meaning to uninstall the free version... cause Google Play is so stupid, that it refunds an uninstalled app when you did not hit refund, and that puts gift cards in for a ridiculous refund loop... (means you lose money!)
12 people found this review helpful
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What's new

Castro 4.10 introduces expanded sensor and device support, new sensor instruments, Urdu localization, a configurable startup screen, dashboard upgrades, and improvements to reporting accuracy, PDF exports, and app stability.

Detailed changelog: https://pavlorekun.dev/castro/changelog