Your new iPhone 12 or Samsung Galaxy S21 probably had great battery life in the first month of use. But slowly, battery performance seems to be starting to wane. Turns out a lot of that may depend on the apps you have installed, and not just Tinder or Facebook.

The folks at cloud storage company pCloud analyzed 100 of the most popular apps to see which ones were draining your battery. While social media apps were obvious candidates for lithium depletion, there were also more benign apps that most people would probably never suspect.

When checking the battery usage of apps, pCloud focused on features that the apps might deploy, such as location and camera. The company also kept an eye on battery-saving features such as dark mode. By evaluating these metrics, pCloud listed which apps were most likely to choke a device in our Best Smartphone Battery Life roundup.

The one that topped the pack was, unsurprisingly, Fitbit. This fitness band used 14 of the 16 available background functions, including the four most demanding. Following Fitbit was another surprising entry, Verizon. Yes, Verizon's apps for paying bills could eat more battery than Uber, Skype, and Facebook.

Not surprisingly, apps like Facebook, Instagram, WhatsApp, Snapchat, and Tinder made the top 20 list of "most requested apps." Social media apps often require many phone features. Additionally, these apps stay in the spotlight much longer than, say, news apps. Not all major social media apps made the list. Notably, Twitter was not ranked.

It should be noted that pCloud rates potential app usage by the number of features used; one app cannot be directly compared to the next, and it is impossible to know which will kill a phone faster. Given the staggered functionality of these apps, comparing the use of the Verizon app to the live streaming platform Bigo Live is probably not a good assessment.

pCloud has also generously included a breakdown of the top 50 battery draining apps. Notable apps include McDonald's, Reddit, Netflix, and TikTok. Duolingo, which notifies you daily, is also in the top 50. Oddly enough, so is online payment company Klarna.

pCloud also found that besides battery life, travel apps consume the most of a phone's internal memory. Here, pCloud is essentially comparing app sizes. United Airlines came in first, consuming over 400 megabytes of memory, followed by Lyft and Uber. And it's not just going places that eats up battery power, but delivery apps that bring you your meals as well.