The best advice I can give you without seeing any sample logs, is to not depend on an app at all. Learn about how transforms.conf can change your sourcetype for the specific type of log that appears in syslog. From there, learn field extraction and grab the fields that matter for your events, finally, chart it and build your views. Then you will have your apps. Learning core Splunk and its capabilities will be a boon to you. There are numerous examples on answers.splunk.com that show how to transform syslog based on the event patterns, and numerous tutorials on field extraction. Finally, go take the Splunk tutorial and you will be off and running! Good luck!
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