NFC Tags

NFC tags are the fastest way to complete a task or add a log entry in TappRFID. Once a tag is linked, you tap your phone to the sticker — no unlocking, no menus.

Compatible tags

TappRFID works with standard NFC NTAG213, NTAG215, or NTAG216 stickers. These are widely available and inexpensive. Any NFC sticker that supports NDEF records will work.

Tip

You don’t need a specific brand. Look for “NFC NTAG213 stickers” — a pack of 10–20 is inexpensive and gives you enough for most setups.

Linking a tag to a task

1. Open a task in the Tasks tab.
2. Tap Link NFC Tag.
3. Hold an NFC sticker near the top of your iPhone.
4. Wait for the write confirmation tone and banner.
5. The tag ID is now stored on the task.

Linking a tag to a log

1. Open a log in the Logs tab.
2. Tap Link NFC Tag.
3. Hold a sticker near the top of your iPhone and wait for confirmation.

Using a linked tag

Hold your phone near the sticker. TappRFID opens in the foreground, completes the task or adds a log entry, and shows a confirmation. The whole flow takes under two seconds.

Note

You do not need to unlock your phone first. NFC scanning works from the Lock Screen if your phone has been unlocked at least once since boot.

Multiple tags per task

A single task can have multiple NFC tags linked. This is useful if you keep different stickers in different locations — for example, one on your coffee maker and one on your bathroom mirror.

To add a second tag:

1. Open the task.
2. Tap Add Another NFC Tag.
3. Scan the new sticker.

Removing a tag

1. Open the task or log.
2. Tap Linked Tags.
3. Swipe left on the tag ID to remove it.

Where to place tags

Some placement ideas:

Tag location	Linked task
Bathroom mirror	Brush teeth, skin care
Coffee maker	Morning routine, medication
Fridge	Vitamins, supplements
Gym bag	Workout, pack bag
Desk	Water intake, posture check
Nightstand	Wind-down routine

Troubleshooting NFC

Tag not detected:

• Hold the phone near the top third of the back (where the NFC antenna is).
• Remove any thick cases — some cases block NFC.
• Check that NFC is enabled: Settings → General → NFC.

Tag writes fail:

• The tag may be locked (write-protected by a previous device).
• Try a new, blank sticker.
• Don’t move the phone during the write process.

Wrong task completes:

• Each tag can only be linked to one item per scan. If a tag was previously linked to a different task, remove it from the old task first and re-link it.

Simulator behaviour

When running in the Xcode Simulator or on a device without NFC, TappRFID shows a simulated NFC scan view for testing purposes. Tags are not actually read or written.

iPhone compatibility

NFC tag reading requires iPhone 7 or later. NFC background tag reading (without opening the app first) requires iPhone XS or later running iOS 14+.