# Introduction: Stop Wasting Money on New NFC Tags—Rewrite Them Instead!
Ever stuck with an NFC tag that has an outdated link? Like the “family recipe” tag on your fridge that points to a dead website, or the “event check-in” tag you used last month that’s now useless? Tearing it down and buying a new one feels silly—especially when you can *fix it in 2 minutes with your iPhone*.
Rewriting NFC tags isn’t just a “tech hack”—it’s a game-changer for anyone who uses NFC for recipes, home automation, small business (like product QR codes), or even fun projects. And if you’re using **NTAG215 tags**? You hit the jackpot: they’re *the most iPhone-compatible* NFC tags out there, with 100,000+ rewrite cycles (that’s 274 years if you rewrite once a day!) and just enough storage (144 bytes) for URLs, texts, or contacts.
This guide will take you from “wait, can my iPhone even do this?” to “I just updated my tag in 30 seconds.” Let’s dive in.
## Which iPhones Support Rewriting NTAG215 Tags?
First things first: not all iPhones can rewrite NFC tags. Here’s the *exact* scoop:
### Supported Models
Every iPhone from the **iPhone 7/7 Plus** onward works—including:
– iPhone 8/8 Plus, X/XS/XS Max/XR
– iPhone 11/11 Pro/11 Pro Max, 12/12 Mini/12 Pro/12 Pro Max
– iPhone 13/13 Mini/13 Pro/13 Pro Max, 14/14 Plus/14 Pro/14 Pro Max
– iPhone 15/15 Plus/15 Pro/15 Pro Max
### System Requirement
You need **iOS 13 or later**. Why? iOS 13 was the first version that let iPhones *write* NFC tags—before that, you could only *read* them.
### How to Check Your iPhone
Not sure if your phone qualifies? Try these quick steps:
1. Open **Settings > General > About**.
2. Scroll down—if you see “NFC” listed, your phone supports writing.
3. If not? You’re on an older model (like iPhone 6 or below)—sorry, those can’t rewrite tags.
Pro tip: If you’re still unsure, download the free NFC Tools app (we’ll talk about it later) and try reading a tag. If it works, you’re good to go!
## The 3 Best Apps for Rewriting NTAG215 Tags on iPhone
You don’t need a fancy tool—these 3 apps cover *every* use case, from total beginners to automation pros.
### 1. NFC Tools (Beginner-Friendly, Free!)
– **What it does**: The simplest way to write URLs, texts, or contacts to NTAG215 tags. The free version has all the basics; the $4.99 Pro upgrade adds batch writing, encryption, and custom formats.
– **Why I love it**: The interface is so easy—my 10-year-old niece used it to rewrite her “treasure hunt” tags.
– **Pros**:
– Step-by-step guides (no guesswork).
– Reads tags first so you don’t accidentally overwrite data.
– Works with *all* NTAG215 tags.
– **Cons**: Pro features are overkill for most people.
– **Best for**: Anyone rewriting tags for simple tasks (like updating recipe links or party invites).
### 2. TagWriter (NXP Official—Great for Automation)
– **What it does**: Made by NXP (the company that invented NTAG215), this app lets you write *automation commands*—like “tap to turn on Wi-Fi” or “tap to send a text.”
– **Why I love it**: It’s the most reliable app for “smart home” tags. I use it to set up a tag by my front door that connects my phone to Wi-Fi *and* opens my garage.
– **Pros**:
– Official NXP app—zero compatibility issues.
– Supports advanced commands (like “Open App” or “Adjust Brightness”).
– **Cons**: The interface is a little clunky for beginners.
– **Best for**: Anyone using NFC for home automation or small business (like “tap to sign up for a newsletter”).
### 3. Shortcuts (iOS Built-In—For Tinkerers)
– **What it does**: iOS’s native Shortcuts app lets you build *custom* NFC workflows—like “tap to post a photo to Instagram” or “tap to call your dog walker.”
– **Why I love it**: It’s free and deeply integrated with iOS. I made a shortcut that sends my partner a “I’m home!” text *and* plays our favorite playlist when I tap my keychain tag.
– **Pros**:
– 100% customizable (no limits on what you can do).
– No app download needed—it’s already on your phone.
– **Cons**: You need to learn how Shortcuts works (it’s not as intuitive as NFC Tools).
– **Best for**: People who love tweaking things and want “one-of-a-kind” tags.
### Quick App Decision Guide
– New to NFC? Pick **NFC Tools**.
– Want smart home automation? Pick **TagWriter**.
– Love customizing everything? Pick **Shortcuts**.
## Step-by-Step: How to Rewrite NTAG215 Tags with NFC Tools
We’ll use **NFC Tools** (the most popular choice) for this guide—it’s free, simple, and covers 90% of use cases. Let’s go!
### Step 1: Gather Your Supplies
– An iPhone 7+ with iOS 13+.
– A **genuine NTAG215 tag** (avoid cheap knockoffs—they often fail mid-write). I recommend [DorfidTag’s NTAG215 tags](https://www.dorfidtag.com/ntag215-cards-ntag215-nfc-tags–ntag216-tags-manufacturer_2463.html)—I’ve used over 100 of their tags and never had a dud.
– Make sure your tag isn’t “locked” (locked tags can’t be rewritten—buy “rewritable” tags to avoid this).
### Step 2: Download NFC Tools
1. Open the App Store and search for “NFC Tools.”
2. Tap **Get** (it’s free!).
3. Open the app—iOS will ask for NFC access. Tap **Allow** (you need this to write tags).
### Step 3: Read the Existing Tag Content (Critical!)
Before you rewrite a tag, *always* read what’s on it first—you don’t want to erase important data by accident.
1. Tap the **Read** button at the bottom of the app.
2. Hold your iPhone’s **top** (where the NFC antenna is—right near the camera) *1-2 cm away* from the tag. Don’t move it—just hold steady.
3. In 3 seconds, the app will show you the tag’s content (like “https://old-recipe.com”). If it’s blank, you’re working with a new tag.
Pro tip: If the app can’t read your tag, try restarting your iPhone—iOS sometimes glitches with NFC. If that doesn’t work, your tag might be damaged (folded or wet).
### Step 4: Edit Your New Content
Now it’s time to add what you want the tag to say. Let’s use “rewriting a recipe link” as an example:
1. Tap the **Write** button at the bottom.
2. Choose the type of content you want to add—we’ll pick **URL**.
3. Type your new link (like “https://new-recipe.com”) and tap **Next**.
You can also write texts (e.g., “Feed the cat!”), contacts (e.g., your phone number), or even Wi-Fi details—just pick the option that fits your project.
### Step 5: Confirm Your Settings (Avoid Mistakes!)
This is where most people mess up—don’t skip it!
1. **Erase existing data**: *Must* be checked. This deletes the old content so your new link doesn’t get “stuck” with the old one.
2. **Lock tag after writing**: *Do not* check this—unless you *never* want to rewrite the tag again. Locked tags are permanent!
3. Tap **Next**.
### Step 6: Write the Tag
1. Follow the app’s instructions: Hold your iPhone’s top near the tag again.
2. Wait for the progress bar to finish (about 2 seconds). You’ll see a “Write Successful” pop-up—celebrate!
### Step 7: Verify the Write (Don’t Skip This!)
Always double-check that your new content is there.
1. Tap **Read** again.
2. Hold your phone near the tag—does it show your new link? If yes, you’re done! If not, repeat Steps 4-6 (you might have moved the phone too fast).
### Step 8: Test It in Real Life
The final step: Make sure the tag *works* for other people.
1. Grab a friend’s phone (or use your own) and tap it on the tag.
2. Does it open your new link? If yes—you’re a pro! If not, check your URL (did you miss an “https://”?).
## FAQ: Fix the 5 Most Common Problems
I’ve helped 50+ people rewrite tags—these are the questions I get *every* time.
### Q1: Why Can’t My iPhone Read My NTAG215 Tag?
A: First, rule out the basics:
– Is your phone an iPhone 7 or later?
– Do you have iOS 13+?
– Is your tag *actually* NTAG215 (some cheap tags lie about their type)?
If all that checks out:
1. Restart your iPhone—NFC glitches are common.
2. Try a different tag—if that works, your original tag is damaged (folded, wet, or low quality).
### Q2: The App Says “Tag Is Locked”—What Do I Do?
A: Locked tags can’t be rewritten—sorry. There are two reasons this happens:
1. You checked “Lock tag after writing” in Step 5.
2. The seller locked it by accident (cheap tags sometimes come pre-locked).
Fix: Buy a new tag—and *never* check “Lock tag” unless you’re 100% sure you won’t change it.
### Q3: My Tag Reads Correctly, But the Link/Text Doesn’t Work—Why?
A: Two common issues:
1. **Wrong format**: If you’re writing a URL, you *must* use the “URL” option (not “Text”). “Text” links won’t open automatically—phones only recognize URLs in the right format.
2. **Bad link**: Test your URL in a browser—does it work? If not, fix the link and rewrite the tag.
### Q4: Has iOS 17 Changed How I Rewrite Tags?
A: Nope! iOS 17 added some fun Shortcuts features (like writing custom commands), but the basics (NFC Tools, TagWriter) work exactly the same. You don’t need to learn anything new.
### Q5: How Many Times Can I Rewrite an NTAG215 Tag?
A: 100,000+ times—way more than you’ll ever need. I’ve rewritten the same tag 50+ times for my blog (testing links) and it still works perfectly. The only way to “break” it is to physically damage it (fold it or scratch the chip).
## Why NTAG215 Is the Best Tag for iPhone Users
You could use other NFC tags, but NTAG215 is the *only* one that checks all the boxes:
1. **iPhone-friendly**: Works with every iPhone 7+.
2. **100,000 rewrites**: No need to buy new tags for years.
3. **Enough storage**: 144 bytes fits most URLs, texts, or contacts (you don’t need more unless you’re writing novels).
And if you’re looking for a reliable brand? I *only* use [DorfidTag’s NTAG215 tags](https://www.dorfidtag.com/ntag215-cards-ntag215-nfc-tags–ntag216-tags-manufacturer_2463.html). They’re a professional manufacturer, so every tag is tested for compatibility—no duds, no locked tags, no headaches. I’ve used over 100 of their tags for my home and business, and I’ve never had a problem.
## Conclusion: You’re Ready to Rewrite!
See? Rewriting NTAG215 tags with your iPhone isn’t hard—it’s *easier* than buying a new tag. All you need is the right app, a genuine NTAG215 tag, and 5 minutes.
So grab that outdated tag on your fridge, download NFC Tools, and give it a try. I promise—once you rewrite your first tag, you’ll wonder why you ever bought new ones.
And if you get stuck? Come back to this guide—I’ll be here. Happy rewriting!
Meta Description: Learn how to rewrite NTAG215 NFC tags using your iPhone! Discover supported models, top apps, step-by-step guides, and fix common issues. Perfect for beginners.
