• CatLog - Logcat Reader! 1
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CatLog - Logcat Reader!

JELLY BEAN USERS: CatLog now requires ROOT access to read logs. More info: http://wp.me/p1t8Ca-qN
Debug your apps. Find error stacktraces. See what your phone is saying about you behind your back. It's all there in the system log, aka logcat!

What makes CatLog stand out over similar apps?


* Color-coded tag names
* Easy-to-read column display
* Real-time search
* Recording mode (with widget)
* Save & open from SD card
* Send logs as email or attachment
* Auto-scrolls when at the bottom of the screen (just like tail -f)
* Search autosuggestions & saved filters
* Select parts of logs
* Open-source and ad-free

Category : Tools

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Reviews (29)

Wil. r. Jul 21, 2020     

This is missing the feature to save logs. Logcat Reader can record the log activity to any folder you choose. Part of examining logs is about sharing them to get help and having a file for later reference, and I don't have any use for a log reader if I can't see the logs except when they occur in the viewer. I can tell this app is well designed, so I hope the developers will add this basic feature to improve it.

Cés. S. Mar 23, 2021     

It still works great! But you have to look for a way to emulate the 'Menu button' on newer Android versions. Which is quite easy.

gav. e. Dec 29, 2019     

A great app in it's day, but unfortunately no longer usable from Android 10 as the system menu button is no more, and you cannot access the bottom menu. Use Matlog instead which is a shameless clone of CatLog, with proper credit to Nolan Lawson.

B. W. Dec 29, 2018     

Great app. I reinstalled, but the app isn't recognizing my prior purchase. The app is sending my back to GPS to upgrade, donate, but the upgrade app is not found. please fix.

Dan. F. Sep 11, 2020     

To other users, use the Widget to record your log to a text file . Then access it from a file manager. I'm running LOS 17+, with no problems.

Bha. G. Jan 31, 2019     

says cannot obtain root, so I'll see only catlog's logs, in matlog app, I've to run some adb commands, give permission, and it works fine I'd recommend that app over this for features and material design

Sun. H. Aug 19, 2020     

In android 10 the menu option is not available to save log...it worked fine with android 9.. 0please do fix it as soon as possible

Mir. V. Oct 18, 2018     

Stopped working, logs won't load anymore, last update 3 years ago - pick a better alternative

Kee. S. Feb 16, 2020     

Was a good app but it no longer works on Android 10 probably due to the permission changes

Viv. R. Oct 18, 2018     

They said it needs Root access in Jellybean devices but in my MM device it need Root Access. Waste app. UNINSTALLING.

A. G. u. Feb 23, 2019     

WORTHLESS to normies, can not use unless you void phone warranty with root access, what a waste of time

Joa. M. Dec 12, 2018     

maybe you add "os.android.READ_LOGS" permissions in your code in order to avoid the need for rooted devices ?

Kat. T. K. Feb 1, 2021     

Not updated. Last time was 2015!

Gha. Feb 14, 2019     

it is showing only catlog own logs.

Sus. M. Jan 15, 2019     

why are tgey requiring root on all apps now?? some of us need/want to know access without rooting...

A. G. u. Mar 22, 2019     

No use got better apps with more functions and better ui

Rob. U. Aug 2, 2019     

Useless. Only works as root.

A.T. F. May 7, 2019     

just how i needed to experience this mess , to correct it... thank you sir.

Dan. D. Jul 15, 2019     

Only read on screen logs

Chr. B. Aug 31, 2020     

Please update this app. It was awesome back in the day

Dav. A. Jun 30, 2019     

the app crashes for no reson

Mus. E. Feb 23, 2019     

It works great and as expected.

Tra. N. Mar 13, 2020     

good app . Thank developer team :D

Jes. B. Sep 22, 2019     

Only works if rooted

A2. s. A. A. s. Aug 17, 2019     

Not soprted this app my phone no warking

Mar. B. Feb 9, 2016     

It works as stated in that you can see catch any random force close when trying to figure out an issue, however it seems dev needs to code the menu button for lollipop up. Seems only coded for dedicated hardware button and not soft keys. The 3 dot menu option is not available. This essentially makes the tool useless to me as I need to extract and email the logs. Dev please update app

Rob. C. Jan 1, 2017     

I originally DLed this app to help a developer debug his game. It came in handy a few other times as well for other apps. Recently, however, when I tried using it, I discovered that with the new version of Android, CatLog is blocked from seeing what other apps are doing. It is now effectively useless, unless I decide to root my phone--and maybe one day, I will, but not now. I'll keep it anyway, just in case things change.

Tam. K. Dec 8, 2015     

Said my device tablet had to be rooted n it would only see the catlogs of the app itself.

Quo. C. N. Jan 31, 2016     

It shows only log about touch and scroll the listview, I did not see any other log