A mobile app terms and conditions template is a website template plus four sets of clauses that a website never needs. The app stores impose their own requirements on what your terms must say and who the user is contracting with, the software itself is licensed rather than sold, purchases run through somebody else's billing, and the app can disappear from the device while the account continues.
The store's rules come first
Both major app stores publish developer terms that reach into yours. They require, among other things, that the user's agreement is with you and not with the store, that the store is not responsible for the app or for support, and that the store's own end user license applies as a minimum where you supply none of your own. Your document has to acknowledge that rather than contradict it, which is why app terms usually carry a short section addressed to the platform rather than to the user.
A license, not a sale
The user is not buying the software, they are getting a limited, revocable, non-transferable license to use it on devices they control. Say what the license covers, that it does not include reverse engineering or redistribution, and that it ends when the agreement ends. A website's terms rarely need this because nothing is installed; an app's does, because something is.
In-app purchases and subscriptions belong to the platform
Where purchases go through the store's billing, the refund route is the store's and not yours, and your terms should say so plainly rather than promising a refund process you do not control. Subscriptions renew through the platform, cancellation happens in the platform's account settings, and a user who cancels in your app but not in the store will still be charged. Every one of those is a support ticket you can avoid with three sentences.
Deletion, devices and the account
Removing the app does not end the subscription and does not delete the account, and users reliably assume both. Say what deleting the app does, what closing the account does, how long data survives each, and where to go to do the one they actually meant. Do the same for the privacy notice, because an app collects device identifiers and often location, and those are categories a website template will not have described.
Questions people ask about mobile app terms and conditions template
Can the website terms just cover the app?
Only if you add the store clauses, the license and the purchase route. Otherwise the document describes a product the user is not using.
Do we need separate terms for each store?
Usually one document with a short platform-specific section for each is enough, which is how most apps handle it.
What about the privacy notice?
It needs its own work. Device identifiers, advertising identifiers, permissions and any location data have to be described, and the stores require a policy link in the listing as well as in the app.