The default iOS font is SF or San Francisco.
What font is used for iphone texting. Font Maker application is mainly used to create customized fonts. AnyFont lets you install well any font in TTF OTF or TTC format on your iPhone or iPad via a configuration profile. Customized fonts can be created as per the requirements of the users.
The rest of 10 misses are usually caused by low quality images low resolution text distorted etc. AnyFont is a paid service which has a huge collection of different and unique font styles to use on your iOS device. While you could draw messages to achieve a unique and personalized look you can now also choose from various fonts and themes to add to your messages with FancyKey available for free from the iOS App Store.
Apple does not allow you to change the font style for the whole system-wide but you can create a different font style specifically for such apps as Videos and Books on iPhone. The user can also type the required text in the Font Maker application. Free Font Apps for iPhone.
Apple makes use of other typefaces too. Earlier iPhones use Helvetica. There is no boundation of font size but they check your app icon size which should be 5757 for main icon and 114114 for retina display.
The most recent iPods and the iPhone use Helvetica as their UI font. The font created can be directly used in the mobile app. Myriad ProLucida Grande and Avenir is the Font which is used by iPhone iPad iPod printed at the back of the device website text and other official document headings.
See here some examples of what a good image looks like. It was Helvetica Neue but since the release of iOS 9 with the exception of the iPhone4 it has been changed to San Francisco Apple companys custom font developed for the Apple Watch. The original iPhone iPhone 3G and iPhone 3GS system interface uses Helvetica.