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iPhone. iPhone 5; iPhone 5c; iPhone 5s ... Messages has additional emojis and third-party apps can extend functionality in iMessage, ... including "Invisible ink ...
Invisible ink, also known as security ink or sympathetic ink, is a substance used for writing, which is invisible either on application or soon thereafter, and can later be made visible by some means, such as heat or ultraviolet light.
Aburidashi is a ninja technique of sending secret messages using a form of invisible ink. [1] The technique uses ink made of juice extracted from soaked and crushed soybeans . [ 1 ] The message becomes visible to the recipient by heating the paper.
The new system is already rolling out in iMessage in beta releases, and it will come to public versions of the software on the iPhone, iPad, Mac and Watch later this year.
UV marker with UV led lamp. An ultraviolet (UV) marker is a pen whose marks are fluorescent but transparent; the marks can be seen only under an ultraviolet light.They are commonly used in security situations to identify belongings or to prevent the reproduction of unauthorized banknotes.
One of the most noteworthy features of iOS 16 is the ability to edit and unsend text messages. It’s not as clear-cut as it seems.
iMessage is an instant messaging service developed by Apple Inc. and launched in 2011. iMessage functions exclusively on Apple platforms – including iOS, iPadOS, macOS, watchOS, and visionOS – as part of Apple's approach to inter-device integration, which has been described by media outlets as a means of achieving vendor lock-in.
Messages (formerly Text) is a text messaging software application developed by Apple Inc. for its macOS, iOS, iPadOS, watchOS, and visionOS operating systems.. All version of Messages support Apple's own iMessage service, while the mobile version of Messages on iOS – used on iPhone and cellular-enabled models of the iPad – also supports SMS, MMS, and RCS in iOS 18. [1]