A friend of mine uses MM Guardian Parental Control.
Their App description states that the app:
Enables you to:
★ Monitor text, call and web activities.
★ Set Time Limits to prevent phone use during sleep times or during other periods you define.
★ Block calls based on your policy, and be warned about texts with prohibited contacts.
★ Control which applications can be used, for how long and when.
★ Set restrictions on what web sites may be viewed.
★ Lock your child’s phone on demand.
★ Locate your child’s phone on demand.
★ Set predefined times to be informed of the location of your child's phone.
★ Prevent your child texting and driving.
★ View comprehensive phone usage reports.
Also, which device are you using? If it's a HTC device isn't there a parental control app cooked into HTC Sense called Kid Mode, haven't used it myself so am unsure on its limitations etc.
— modified on Feb 2, 2016 12:48:44 PM