NFC (near field communication) lets a phone read a tiny chip from a few centimetres away. An NFC tag is that chip inside a sticker, card or keyring. It holds a short instruction, such as a web link or a contact card, and the phone acts on it when someone taps.
Tags have no battery and don't need to be plugged in. Once written, they keep doing the same job until you change them.
Each of these matches an idea in NFC Ninja's Library tab, most of them under the Business chip. Tap Use this idea to set up the right action and name, then add your own details, such as your review link or menu address.
Put a review tag next to the register or on the receipt tray. A happy customer taps once and lands on your review page, instead of searching for your business later and forgetting. Library idea: Review My Business.
A tag on each table opens your online menu. It sits alongside a QR code for customers who'd rather use the camera, and you can update the menu online without reprinting anything. Library idea: Contactless Menu.
A tag at the door opens your check-in or event page, so arrivals sign in on their own phone instead of queuing for a clipboard. Library idea: Event Check-in.
A tag on the back of your card or phone case saves your name, number and email straight into the other person's contacts. See the full setup in Make an NFC business card people save in one tap. Library idea: Digital Business Card.
Designers, trades and photographers can link a tag to a portfolio or project gallery. Put it on a quote folder, a site sign or a display piece. Library idea: Portfolio Link.
At networking events, a tap opens your LinkedIn profile, so the connection happens on the spot. Library idea: LinkedIn Profile.
A tag that starts a pre-addressed email is handy for enquiries, feedback or "send me the brochure" requests. The customer's phone opens a new email with your address already in it. Library idea: Email Me.
Link a tag to your bookings or quote request page and put it at reception or on your van. People book while they're thinking about it. Library idea: Website Shortcut.
Two practical tips:
On iPhone, keep NFC Ninja open while you write. The full iPhone walkthrough is in How to write an NFC tag on iPhone, and check it worked.
If a tag already has something on it, NFC Ninja asks Overwrite this tag? before replacing it. It never locks a tag, so you can update a tag later if your link changes.
Phones handle tags a little differently. Some examples worth knowing:
A tag is great at getting someone to the right place in one tap. It doesn't do anything with what happens next. If your check-ins still get typed into a spreadsheet, or your enquiries land in three different inboxes, the real time saving is connecting those systems so the data flows by itself.
That's the work we do at Systemic Studios. Start with Connect the apps you already run, or read When your systems don't talk to each other.
Pick an idea, build the tag in a few taps, write it, and see it verified. No account needed.
For jobs where customers need a link, yes. A tag removes the "search for us later" step, which is where reviews, bookings and enquiries often get lost. They're easy to try: write one tag, put it on the counter and see if people use it.
Usually, for links. iPhone XS and later can read a link from a tag without opening an app, and most Android phones with NFC switched on do the same. You only need NFC Ninja to write the tag, not to tap it.
Yes, as long as the tag hasn't been locked. NFC Ninja never locks a tag, asks Overwrite this tag? before replacing data, and keeps your setups in the My Tags tab so you can edit and rewrite them.
Use both. A QR code works for people who prefer the camera, and a tag is quicker for people who just tap. Putting them side by side covers more customers.
On Android, yes. iPhone can't join Wi-Fi from an NFC tag, so pair a Wi-Fi tag with a printed password or QR code.
NFC Ninja has been tested on iPhone with NTAG213 tags for reading, writing, read-back and overwriting. NTAG213 stickers are widely sold and hold enough for a web link or a short contact card.
Systemic Studios
