iPhone NFC Apps
The 7, 8 and X iPhones cannot read NFC Tags natively. This means that while these generation of iPhones technically can read NFC tags, they can't do it out of the box. Apple recently updated the iOS software so that the current XS, XS Max and XR iPhones can scan NFC tags with or without an additional App. It is possible that at some point in the future built-in tag scanning will be available on the 7,8 or X. However, right now, you need to get an App.
If you do have one of the latest generation XS, XS Max or XR iPhones, then to scan an NFC tag all you need to do is hold the phone near an encoded NFC tag. It's as simple as that !
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Since Apple announced that NFC tag scanning was going to be enabled in iOS 11, a number of new NFC Apps have appeared on the App Store. Some of them work very well, others are a little unreliable. NFC.Today are going to focus on a particular App made by NXP. You may not have heard of NXP but they are a microchip company similar to Intel, who you probably have. NXP make almost all the NFC chips that go into NFC tags. Their Tagwriter and Taginfo Apps for Android are solid, reliable and well featured. We expect their iPhone Apps to develop the same way. The NXP Taginfo for iPhone App is free to download from the App Store.
If you don't have the XS, XS Max or XR, then to read NFC tags, you need to have installed iOS 11 or later and will need an App. NFC tag scanning with an App is only available on the iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus and the iPhone X. If you have an older iPhone, unfortunately you do not have the technical ability to read NFC tags.
The iPhone will scan a wide variety of NFC tags including NFC Forum Type 2 tags. This includes the popular NTAG®, MIFARE® and ICODE® series chips. Without getting too technical, pretty much any NFC tag you purchase will work but we'd recommend you stick with an NTAG® based tag.
The iPhone is able to read NFC tags, but only properly encoded messages within the main memory space. Technically, this correct encoding follows a universally recognised data structure called NDEF which stands for 'NFC Data Exchange Format’. Currently, the iPhone is not able to read the tag's Unique ID or encode data onto tags. If you want to test, for example, opening a web address on a tag, you have two options. The first is to have the web address encoded onto the tags when you purchase them. Most NFC tag stores can do this for you. Alternatively, you can use an Android phone with NXP's Tagwriter App.
As mentioned, the tags do need to be encoded with NDEF data which means that blank tags won't do anything. If you get your tags encoded by a good supplier, then they will be encoded correctly. If you use Tagwriter for Android then, again, it will all be encoded correctly.
Step 1 : Get Your NFC Tags
If you don't already have some NFC tags then it's easy to get hold of some. Remember that the iPhone cannot encode tags so either grab someone with an Android phone to encode your NFC tags or ask your supplier to do it for you. If you are in Europe, then check out our site sponsor Seritag for NFC tags.
Step 2 : Install The App
First, download the App from the App Store and install. The App is free to use.
Step 3 : Scan A Tag
Now hold the top area of your phone over an NFC tag. The response should be very quick so if you aren't getting any feedback there's something wrong. You shouldn't need to touch the tag but you will need to be within a few centimetres. Just a note that normal NFC tags don't work on metal surfaces. So if you have a normal NFC tag and are trying to scan from a metal table then it won't work !
Step 4 : View Contents
You will now be able to see the contents of the tag and be able to launch if desired. It's really as simple as that.
Step 5 : Change Settings
It's very likely that NXP will continue to develop the App and add additional features. At the time of writing, there are two settings. The first 'Auto Scan on App launch' means that you don't need to tell the App that you are about to scan an NFC tag. Useful if you scan tags regularly.
The second 'Auto Launch Tag Actions' means that the App will automatically carry out an action associated with the contents of the tag. For example, if the tag contained a web address or URL, then auto launch will open a browser on your phone and display that without you taking any action. Note that while this is clearly useful for scanning many tags, be aware that if you don't know what is on the tag then you might want to see what's going to be opened before it does it automatically.