iPhone Autofill SMS Text Codes
iPhone Autofill SMS Text Codes

Isn’t it a hassle to manually type in those six-digit authentication codes sent via SMS for two-factor authentication (2FA)? It can be particularly frustrating when the code expires because you were too slow to enter it. Well, if you’re an iPhone user, you’re in for a treat. Your iPhone can actually fill in those annoying SMS authentication codes for you automatically!

What is Two-Factor Authentication (2FA)?

Two-factor authentication, or 2FA, is an extra layer of security used to ensure that people trying to gain access to an online account are who they say they are. First, a user will enter their username and a password. Then, instead of immediately gaining access, they will be required to provide another piece of information. This second factor could come from an SMS message sent to your phone. But what if there’s a better way to handle this second factor?

The Problem with SMS Authentication Codes

The problem isn’t with the two-factor authentication process itself, but with the manual input of the SMS codes. These codes are time-sensitive, usually expiring within a few minutes, meaning you must drop everything to type it in. It’s easy to mistype the code in a rush or forget it halfway through input.

Your iPhone to the Rescue

Enter the modern marvel that is your iPhone. With its latest operating systems, Apple has introduced a convenient feature that makes SMS authentication less of a hassle.

Unlocking the Power of Your iPhone

The iPhone’s operating system comes with a host of user-friendly features designed to streamline your digital life. One such feature is the ability to auto-fill SMS authentication codes.

How Your iPhone Autofills SMS Authentication Codes

When you receive an SMS containing an authentication code while there’s a corresponding input field open on your iPhone, iOS detects this and offers to auto-fill the code with a single tap. This saves you the hassle of switching between apps and rushing to enter the code before it expires.

Benefits of iPhone’s Autofill Feature

This simple yet powerful feature saves time and reduces errors. It’s especially useful if you frequently use 2FA for your online accounts. Plus, it makes the whole process feel seamless and intuitive, enhancing your overall user experience.

Making the Most of Autofill on iPhone

To make full use of this feature, you need to ensure it’s set up correctly on your iPhone.

Setting up Autofill on Your iPhone

To enable this feature, navigate to ‘Settings’, then ‘Passwords & Accounts’, and finally ‘AutoFill Passwords’. Here, you can toggle on ‘AutoFill Passwords’. Once this is enabled, your iPhone will automatically fill in SMS codes whenever possible.

Troubleshooting Autofill Issues

If you encounter any problems with the autofill feature, try restarting your device or updating your operating system. If issues persist, visit the Apple support website or your nearest Apple store.

Securing Your Autofill Feature

While autofill is undoubtedly convenient, it’s essential to ensure your iPhone remains secure.

Keeping Your iPhone Updated

Keeping your iPhone updated ensures you have the latest security patches and feature improvements, contributing to your device’s overall safety.

Additional Security Measures

Beyond updates, always lock your device when not in use and consider using biometric features like Face ID or Touch ID for an extra layer of security. Remember, security is a never-ending process!


Two-factor authentication is an essential aspect of digital security, but it doesn’t have to be a hassle. Thanks to the autofill feature on your iPhone, dealing with SMS authentication codes can be a breeze. Enjoy a smoother, more secure experience with your iPhone – it’s just a tap away!


  1. Can the autofill feature be used on other devices?
    • Yes, autofill is also available on other iOS devices like iPads, provided they’re running a compatible version of iOS.
  2. Is the autofill feature secure?
    • Yes, as long as your device itself is secure. Use features like Face ID or Touch ID to prevent unauthorized access.
  3. What if autofill isn’t working?
    • Try restarting your device or checking for iOS updates. If the problem persists, contact Apple support.
  4. Does autofill work with all apps?
    • Autofill should work with most apps that support SMS authentication codes.
  5. Can I disable the autofill feature?
    • Yes, you can disable this feature by navigating to ‘Settings’, then ‘Passwords & Accounts’, and finally ‘AutoFill Passwords’.
Eric Chan

Hi! I’m Eric and I work on the knowledge base at GadgetMates.com.  You can see some of my writings about technology, cellphone repair, and computer repair here.

When I’m not writing about tech I’m playing with my dog or hanging out with my girlfriend.

Shoot me a message at ericchan@gadgetmates.com if you want to see a topic discussed or have a correction on something I’ve written.

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