Chinese customers in an Apple store on Jan. 3, 2019, in Beijing, one day after Apple preannounced weak quarterly results that it attributed primarily to a sales slowdown in China.Lintao Zhang | Getty ImagesIf you’ve been using an iPhone for a long time, you may have signed up for various app subscriptions over the years.I pay for lots of stuff on my iPhone, like HBO through Apple TV+, Headspace for meditation, Apple News+, Apple Music, Carrot Weather and monthly AppleCare+ plans for various devices.I use and need a lot of that, but in total I spend about $773 per year in various subscriptions that I can manage in the App Store. Like me, you may have a few apps that you no longer use but are still paying for.It adds up, and you can save a few bucks a month by quickly running through the subscriptions you have and eliminating any you don’t need. I ran through it and found I was paying an annual subscription for an app I no longer use, so I can save $9.99 by canceling it.The setting is kind of hidden, so I’ll show you where to look.Here’s what you need to do.Cancel subscriptions on your iPhone or iPad.Todd Haselton | CNBCOpen the App Store on your iPhone or iPad.Tap your profile picture.Select « Manage Subscriptions. »Tap each individual subscription to see what it costs and how often you’re charged (usually monthly or annually.)Tap « Cancel subscription » to remove it.Just repeat those steps to review and unsubscribe from the apps you don’t use. Or just go through and add up everything so you have a better idea of what you’re spending each month or year, through app subscriptions.