Hello Satheesh Kumar S,
If you are planning to use Odoo Enterprise for Timesheet, Approval, Employee, Appraisal, Project, Time off, attendance, etc. then you have to pay based on Number Of Users and Number Of App.
You can check your pricing by select Users, Apps and Hosting Providers,
https://www.odoo.com/pricing
Once you will purchase Enterprise Subscription, It can be customize based on your specific requirements.
Feel free to ask for any further clarifications,
Thanks & Regards,
CandidRoot Solutions Pvt. Ltd.
Mobile: (+91) 8849036209
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