# Compatibility Journal > Check the phone model, operating system version and storage before you buy, and confirm current requirements on the official site. ## Guides - [Finding the Android Version on Your Child's Phone](https://compatibility-dtv.pages.dev/find-android-version-child-phone/): To find android version child phone, check the Android version in the phone's settings and record the device model before comparing it with the current. - [Finding the iOS Version and iCloud Details](https://compatibility-dtv.pages.dev/find-ios-version-iphone/): To find ios version iphone, check the installed iOS release in the device's settings and record the exact iPhone model separately. - [Old Phones and Low Storage: Common Compatibility Snags](https://compatibility-dtv.pages.dev/old-phone-low-storage-monitoring/): Old phone low storage monitoring requires more than checking whether an app can be considered for a device. - [Tablets and Shared Devices: What to Check](https://compatibility-dtv.pages.dev/monitoring-tablets-shared-devices/): Before considering monitoring tablets shared devices, check the exact tablet model, operating system, software version, and the way the device is shared. - [What to Do If the Phone Is Not Supported](https://compatibility-dtv.pages.dev/monitoring-app-not-supported-phone/): If a phone is listed as incompatible, do not assume that a different setup will make mSpy work. ## About - [About Compatibility Journal](https://compatibility-dtv.pages.dev/about/): responsible use, how the site is funded and how guides are made ## Optional - [RSS feed](https://compatibility-dtv.pages.dev/feed.xml)