Check this OWASP Project: https://www.owasp.org/index.php/Mobile

Try this too... https://www.owasp.org/index.php/Mobile#tab=For_Security_Testers

Source:  http://capture.thefl.ag/practice-ctf/

Here's a list of some CTF practice sites and tools or CTFs that are long-running.

Live Online Games Recommended

Whether they're being updated, contain high quality challenges, or just have a lot of depth, these are probably where you want to spend the most time.

   - http://hax.tor.hu/
 

   - https://pwn0.com/
 

   - http://www.smashthestack.org/
 

   - http://www.hellboundhackers.org/
 

   - http://www.overthewire.org/wargames/
 

   - http://roothack.org/
 

   - http://intruded.net/
 

   - http://www.hackthissite.org/
 


Others

   - http://bright-shadows.net/
 

   - http://www.mod-x.co.uk/main.php
 

   - http://scanme.nmap.org/
 

   - http://rootcontest.com/
 

   - http://www.gat3way.eu/index.php
 
 (Russian)
   - http://www.hackertest.net/
 


Webapp Specific

   - http://demo.testfire.net/
 

   - http://wocares.com/xsstester.php
 

   - http://crackme.cenzic.com/
 

   - http://test.acunetix.com/
 

   - http://zero.webappsecurity.com/
 

   - http://ha.ckers.org/challenge/
 

   - http://ha.ckers.org/challenge2/
 


Commercial

   - http://rtncyberjobs.com/
 

   - http://heorot.net/
 


Downloadable Offline Games

   - http://www.badstore.net/
 

   - http://www.owasp.org/index.php/Category:OWASP_WebGoat_Project
 

   - http://www.owasp.org/index.php/Owasp_SiteGenerator
 

   - Damn Vulnerable Web App http://www.ethicalhack3r.co.uk/damn-vulnerable-web-app/

   - Stanford SecureBench http://suif.stanford.edu/%7Elivshits/securibench/

   - Stanford SecureBench Micro http://suif.stanford.edu/%7Elivshits/work/securibench-micro/

   - Damn Vulnerable Linux http://www.damnvulnerablelinux.org/
 
  - Mutillidae http://www.irongeek.com/i.php?page=security/mutillidae-deliberately-vulnerable-php-owasp-top-10

The best browser for web testing is Mantra. A Firefox based browser with all the add-ons for security testing and auditing. Download here: http://getmantra.com/

Try OWASP tools at www.owasp.org. OWASP has a Testing Guide for you to test your web applications.