https://www.theverge.com/circuitbreaker/2017/9/18/16327886/apple-iphone-screen-replacement-cost-applecare

Apple has quietly increased the cost to repair broken screens on the iPhone 6S, 6S Plus, 7 and 7 Plus, as noted by Reddit users over the weekend, raising the price of screen replacements on Apple's more recent devices by $20 across the board.

That means that it now costs $149 to replace a screen on the smaller 6S and 7 instead of the original $129, and $169 for the 6S Plus and 7 Plus, up from the old price of $149. The new $149 and $169 prices also apply to the iPhone 8 and 8 Plus, which will be released later this week.