How to Get Invisible Ink on Your iPhone

How do I get invisible ink on my iPhone?

Did you know that your iPhone has a hidden feature that allows you to send messages in invisible ink? With just a few simple steps, you can bring a touch of secrecy to your conversations. Whether you want to surprise your friends or add a little mystery to your messages, invisible ink is the perfect tool.

To use invisible ink, all you need to do is open your Messages app and compose a new message or reply to an existing one. Then, type your message as usual. Once you’re ready to apply the invisible ink effect, press and hold the blue send button. A menu will appear, giving you the option to send your message with invisible ink.

When your recipient receives the message, they will see a blurry bubble. They can then swipe their finger over the bubble to reveal the hidden message underneath. It’s like having your own secret code, right at your fingertips!

Invisible ink is not only a fun way to communicate, but it can also be a useful tool. If you need to send sensitive information, such as a password or a personal detail, invisible ink can help keep your message discreet. Plus, it adds an extra layer of excitement to your conversations.

So why not give invisible ink a try? It’s a simple, yet ingenious feature that can transform your messages into a fun and mysterious experience. You’ll never look at your iPhone the same way again!

What Is Invisible Ink?

Invisible ink is a type of ink that is designed to be invisible or hidden when applied to a surface. It can only be revealed through the use of a specific method or substance. This fascinating form of ink has been used for centuries for various purposes, such as secret messaging, security features, and entertainment purposes.

There are several types of invisible ink, each with its own unique properties and methods of activation. Some common methods of revealing invisible ink include heat, chemicals, UV light, or other specific detection tools. The ink can be applied to various surfaces, including paper, fabric, or even skin.

The use of invisible ink can be traced back to ancient civilizations, where it was used for secret communications during times of war or espionage. Messages written in invisible ink would appear as ordinary writing, but by using the appropriate method, the hidden message would be exposed. This provided a way for people to communicate covertly and securely.

In modern times, invisible ink has become a popular tool for entertainment and novelty purposes. It is often used in escape rooms, puzzles, and magic tricks. Many smartphone applications now offer the ability to create and reveal invisible ink messages, adding an element of mystery and fun to digital communication.

The development and use of invisible ink continue to evolve. Researchers are constantly exploring new techniques and materials to create even more sophisticated forms of invisible ink. Whether for practical or recreational purposes, invisible ink remains an intriguing and captivating aspect of human ingenuity.

The History and Uses of Invisible Ink

Invisible ink has a long and fascinating history that dates back to ancient times. Throughout the years, it has been used for various purposes, ranging from espionage to entertainment. Below, we explore the origins and uses of this mysterious ink.

Ancient Origins

Invisible ink can be traced back to ancient civilizations such as the Egyptians and the Greeks. They used a variety of substances, including lemon juice, vinegar, and milk, to create invisible ink. The messages were revealed by heating the paper or treating it with a special solution.

Historical Uses

During times of war, invisible ink played an essential role in espionage. Secret agents would write messages in invisible ink, concealing vital information from the enemy. These messages could then be revealed using specific chemicals or other techniques, providing crucial intelligence.

Invisible ink has also been used as a method of secret communication during times of oppressive regimes or censorship. Dissidents and resistance members would write messages in invisible ink to avoid detection and communicate covertly.

Entertainment and Magic

Invisible ink has also been popularized in entertainment and magic tricks. Magicians often use special pens or chemicals to write messages that are invisible to the naked eye, only to reveal them later in dramatic fashion.

Invisible ink has also been used in children’s toys and books, adding an element of mystery and fun. These toys usually come with a special pen or marker that allows children to write secret messages and reveal them using a UV light or other methods.

Modern Applications

Invisible ink continues to be used in various modern applications. For example, it is commonly used in security printing, such as printing secure documents like passports and banknotes. This ink is only visible under specific lighting conditions or with special tools, adding an extra layer of security.

Furthermore, invisible ink has found applications in science and technology. Researchers utilize invisible ink to label and track objects or to mark boundaries in experiments.


From ancient times to the present day, invisible ink has captivated people with its hidden messages and secrets. Its uses have ranged from espionage to entertainment, and its applications continue to evolve in various fields. Whether it is for practical or recreational purposes, invisible ink remains a fascinating and intriguing aspect of human history.

Types of Invisible Ink

Invisible ink has been used for centuries to pass secret messages or create hidden designs. There are various types of invisible ink that can be created or obtained. Some common types include:

Lemon Juice:

One of the most well-known types of invisible ink is lemon juice. When lemon juice is applied to a surface and allowed to dry, it becomes almost invisible. When heat is applied to the lemon juice, it oxidizes and turns brown, making the message or design visible.


Milk can also be used as a type of invisible ink. When milk is applied to a surface and allowed to dry, it becomes relatively invisible. When heat is applied to the milk, it darkens and becomes visible. This method is commonly used for fun science experiments.

Writing in Disappearing Ink:

There are commercially available pens that use disappearing ink. These pens write with ink that initially appears like any other pen, but within a few hours, the ink fades and disappears. This can be a fun and temporary way to create hidden messages or designs.

Invisible Ink Kits:

For those who want to experiment with different types of invisible ink, there are kits available that include various types of invisible ink. These kits often include pens or markers that use different substances as invisible ink, such as lemon juice, vinegar, or baking soda.

The Importance of Invisible Ink

Invisible ink can serve many purposes, from spy activities to fun experiments. It allows for hidden communication and creativity. While invisible ink may seem like a thing of the past, it is still a fascinating and useful tool in the modern age.

How to Obtain Invisible Ink on Your iPhone

Obtaining invisible ink on your iPhone is easier than you might think. With just a few simple steps, you can have a fun and interactive way to send secret messages to your friends. Here’s how:

  1. Open the Messages app on your iPhone.
  2. Select a contact or start a new conversation.
  3. Type your message as you normally would.
  4. Highlight the text that you want to turn into invisible ink.
  5. Tap on the formatting icon that looks like an ‘A’ with a circle around it.
  6. Choose the ‘Invisible Ink’ option from the menu.
  7. Press the blue arrow button to send your message.

Your message will now appear as a series of blurry bubbles to the recipient. They can simply swipe over the message to reveal the hidden text. It’s a great way to add a bit of mystery and excitement to your conversations.

If you want to use invisible ink for more than just text messages, you can also apply it to photos or videos. Just follow the same steps and select the image or video that you want to send. The recipient will have to swipe over the content to view it.

Keep in mind that both you and the recipient need to have an iPhone with iOS 10 or later to be able to see and send invisible ink messages.

So, why not give invisible ink a try? It’s a fun way to spice up your conversations and keep things interesting with your friends and family.

The Easy Way to Make Invisible Ink at Home

Want to have some fun with invisible ink? It’s easier than you think! You can create your own invisible ink at home using simple materials that you probably already have.

To make invisible ink, you will need:

  • Lemon juice or milk
  • Cotton swabs or a paintbrush
  • White paper or a blank notebook

Step 1: Squeeze some lemon juice into a small bowl or pour some milk into a shallow dish. These liquids will act as the invisible ink.

Step 2: Dip a cotton swab or paintbrush into the lemon juice or milk. Use the swab or brush to write or draw on the white paper or notebook. Make sure your strokes are light and even.

Step 3: Let the paper dry completely. This may take a few minutes, so be patient.

Step 4: Once the paper is dry, your invisible ink will be revealed. Hold the paper up to a heat source, such as a light bulb or candle flame. The heat will cause the lemon juice or milk to darken, making your message visible.


  • Make sure to write or draw lightly with the invisible ink. Applying too much pressure may damage the paper.
  • Experiment with different ingredients to create invisible ink. You can try using other citrus juices like orange or lime, or even substances like baking soda mixed with water.
  • Have fun with your invisible ink by writing secret messages that can only be revealed with heat. You can also use it for invisible drawings or as a fun party activity.

So why not try making your own invisible ink at home? It’s a simple and fun way to have a little bit of magic in your life!

Using Invisible Ink for Secret Messages

If you’re looking for a fun and secretive way to send messages to your friends or loved ones, using invisible ink can be a great option. Whether you’re planning a surprise party or just want to add a touch of mystery to your messages, invisible ink can make your communication more exciting.

How Does it Work?

Invisible ink is a substance that can only be seen under specific conditions or with the use of certain tools. There are several types of invisible ink, such as lemon juice, milk, or specialized pens and markers. Each type of ink has its own activation method, which can include heat, UV light, or chemical reactions.

Creating Invisible Ink Messages

To create an invisible ink message, you’ll first need to choose your ink. Lemon juice is a popular option because it’s readily available in most kitchens. Simply squeeze some fresh lemon juice into a small bowl or dish.

Next, dip a cotton swab, small brush, or a regular pen into the lemon juice, and use it to write your message on a piece of paper. Make sure to press lightly, as too much juice can cause the paper to wrinkle or tear.

Revealing the Invisible Ink

Once you’ve written your message, you’ll need to reveal the invisible ink. There are a few ways to do this:

  • Heat Method: Hold the paper close to a heat source, such as a light bulb or an iron set on low heat. The heat will cause the lemon juice to oxidize, making your message visible.
  • UV Light Method: Shine a UV light, such as a blacklight, directly onto the paper. The lemon juice will fluoresce under the UV light, revealing your message.
  • Chemical Method: Apply a solution of iodine or grape juice to the paper using a cotton swab or brush. The solution will react with the lemon juice, making the invisible ink appear.

Other Applications of Invisible Ink

In addition to secret messages, invisible ink can be used for various purposes:

  • Security: Invisible ink can be used to mark valuable items or documents as a security measure. Only those who know how to reveal the ink will be able to identify the marks.
  • Entertainment: Invisible ink can be used for magic tricks or as part of an escape room puzzle. It can add an element of surprise and intrigue to any performance or game.
  • Education: Teachers can incorporate invisible ink into their lesson plans to engage students. They can use it for quizzes, games, or to make learning more interactive.


Using invisible ink can be a fun and creative way to add a touch of secrecy to your messages. Whether you’re planning a surprise or just want to make your communication more exciting, invisible ink offers a wide range of possibilities. So grab some lemon juice or specialized ink, and start creating your own hidden messages today!

Fun Activities with Invisible Ink

Using invisible ink can be a fun way to engage in various activities. Whether you want to send secret messages or create hidden artwork, invisible ink can add an element of mystery to your projects. Here are some exciting activities you can try using invisible ink:

  1. Invisible Message: Write a message using invisible ink and challenge your friends to decode it. You can use lemon juice or special UV ink pens to create invisible messages. To reveal the message, expose the paper to heat or shine a UV light on it.
  2. Treasure Hunt: Create a treasure hunt by writing clues with invisible ink. Each clue can lead to the next, and the final clue can reveal the location of a hidden treasure. Make sure to provide a UV light or heat source for participants to decode the clues.
  3. Secret Diary: Keep a secret diary by writing your entries with invisible ink. You can hide your thoughts and feelings in plain sight, knowing that only you can read them. This can be a great way to maintain privacy.
  4. Invisible Art: Use invisible ink to create hidden artwork. Draw or paint with invisible ink on paper, and then reveal the art by using a UV light or heat source. This unique form of art can be a fun and creative way to express yourself.
  5. Invisible Ink Science: Explore the science behind invisible ink. Research different methods of making invisible ink and conduct experiments to test their effectiveness. You can also learn about the history of invisible ink and its use in espionage.

Invisible ink opens up a world of possibilities for exciting activities. Whether you want to play games or create art, invisible ink can provide hours of fun and intrigue. So grab your UV light or heat source, and start exploring the hidden world of invisible ink!

Important Safety Precautions When Handling Invisible Ink

Handling invisible ink requires caution and appropriate safety measures. Here are some important precautions to follow to ensure your safety:

  1. Always work in a well-ventilated area to prevent inhaling any potential fumes or gases.
  2. Wear protective gloves to avoid direct contact with the ink, as it may contain potentially harmful chemicals.
  3. Avoid touching your face or eyes while handling invisible ink to prevent accidental exposure.
  4. Keep the ink away from open flames or heat sources, as some invisible inks may be flammable.
  5. Store the ink in a cool and dry place, away from direct sunlight or extreme temperatures, to maintain its quality and longevity.
  6. Keep invisible ink out of the reach of children and pets, as they may accidentally ingest or mishandle it.
  7. Dispose of any unused or expired invisible ink properly, following local waste disposal guidelines.
  8. If you experience any adverse reactions or skin irritations after coming into contact with the ink, seek medical attention immediately.

By following these safety precautions, you can safely handle and enjoy experimenting with invisible ink on your iPhone.


What is invisible ink on iPhone?

Invisible ink on iPhone is a feature that allows you to send messages or photos that are hidden until the recipient swipes on them.

How can I obtain invisible ink on my iPhone?

To obtain invisible ink on your iPhone, you can simply follow these steps: 1. Open the Messages app. 2. Compose a new message. 3. Type your message or attach the photo you want to send. 4. Force touch the send button. 5. Select “Invisible Ink” from the menu. 6. Send your message.

Can I use invisible ink on my iPhone for photos?

Yes, you can use invisible ink on your iPhone for both text messages and photos. Just follow the steps mentioned earlier, and you can attach a photo and send it with invisible ink.

Is invisible ink on iPhone secure?

Yes, invisible ink on iPhone is secure. The content of the message or photo is encrypted, and the recipient needs to physically interact with it to reveal the hidden content.

Can invisible ink messages be saved?

Yes, invisible ink messages can be saved. Once the recipient swipes on the message, it will be temporarily visible, and you can take a screenshot to save it.

Does the invisible ink feature work on all iPhones?

No, the invisible ink feature is only available on iPhones running iOS 10 or later. If you have an older iPhone, you may not be able to use this feature.

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