Making an in-app purchase from an iOS device now comes with a warning reminding users of the 15-minute window they have to make additional purchases without re-entering their password.
The change was part of the iOS 7.1 update that rolled out to users Monday.
See also: What's Wrong With Apple's iOS 7.1?
The alert now appears whenever an in-app purchase is made. Users can either dismiss the warning by tapping "OK" or can change their settings to disable the window.
Though the warning is new with iOS 7.1, the 15-minute window is not. The window has existed since the App Store launched in 2008.

The iOS 7.1 update includes a warning alerting users to the 15-minute window purchases can be made after an in-app purchase. The window can be disabled under the restrictions setting on iOS devices.
Image: Apple
Apple and Google have both come under fire recently for their policies regarding in-app purchases.
Earlier this year, Apple settled a complaint with the FTC that resulted in the company refunding $32.5 million in in-app purchases made by children. As part of that settlement, the company was also required to change its policies "to ensure that it has obtained express, informed consent from consumers before charging them for items sold in mobile apps" by March 31.
Google was hit with a similar lawsuit over its billing practices regarding in-app purchases earlier this month. That suit alleges the company has deliberately tricked young children into making millions of dollars in purchases.
The United States is not the only country to grapple with the issue of in-app purchases. European Union officials recently held meetings with representatives from Apple and Google, in an effort to regulate how these types of transactions are handled, after expressing concern children were being misled by app developers into making purchases.
The most striking visual change is the telephone interface. Although the circular number key pads remain, the large square "call" button has been replaced by a small circle displaying a phone icon.
Those phone call interface changes have been carried over to the answer/decline screens as well. Now when your receive an incoming call, the screen will display two simple red and green button icons, instead of the large "answer" and "decline" button blocks in the previous version.
This change seems more like a designer flourish rather than a practical move, as hitting those large call/answer/decline buttons on the iPhone's touchscreen while carrying bags or multitasking is certainly easier than having to now aim for the tiny circles.
In addition to boosting the accuracy of the iPhone 5S Touch ID system, iOS 7.1 now gives the feature its own set-up menu in the Settings section. Not much has changed here, but it's a welcome update and it seems a bit odd that Apple didn't give Touch ID its own menu section from the very beginning.
When iOS 7 first debuted, one of the biggest complaints revolved around the parallax effect in Wallpaper, a dynamic that caused some prone to motion sickness to avoid the feature altogether. With iOS 7.1, Apple has included a handy "perspective on/off" option when selecting a new Wallpaper image.
The feature also offers those who are fans of the feature a quicker way to test out how certain images will look with the effect before selecting that image as a new Wallpaper image.
The voice of Siri for U.S. users remains the same, but some international users will notice a warmer, more human-sounding digital assistant after upgrading to iOS 7.1. In particular, the British English and the Japanese voices of Siri offer noticeably warmer, less robotic sounding version of Siri. This "more human" touch has also been applied to the Australian English and Mandarin Chinese versions of Siri.
Another minor tweak to iOS comes in the operating system's Calendar and Weather apps. The new Calendar features a handy option that allows you to show special events and appointments right under the calendar view.
On the Weather app, the weather condition icons are now filled in, offering the viewer an easier image to process visually when quickly glancing at weather conditions during transit.
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