LidTap
You bought a pack of NFC stickers (NTAG213 or NTAG215). On iPhone, the useful move is a bottle: stick one on a supplement lid, open LidTap, link it once, then tap the lid to log that you took it. No typing. Works from the lock screen. Not a business card, not a smart-home scene, not a medical reminder. LidTap is for people who already take a stack (creatine, omega-3, vitamin D) and keep forgetting which bottle they opened.
Bottles, gym bag, supplement stack
Put the stickers on bottles you already pick up. That is the use that sticks — not a hotel key card, not a museum poster, not a Wi-Fi note you tap once and forget.
- Kitchen stack. Creatine, omega-3, vitamin D, magnesium. One tag per lid. Tap as you take it. You stop guessing which bottle you already opened.
- Gym bag. Pre-workout, protein, electrolytes, the creatine that lives in the duffel. Waterproof NTAG213 stickers, tap from the lock screen between sets.
- The bottle in your hand. A shaker, a bedtime magnesium, a bathroom serum you keep losing track of. Same idea: the object you already hold is the log.
NTAG213 packs are cheap because the internet sells them for business cards and shortcuts. Those work once. A supplement bottle is already in your hand every morning. The tag lives on the lid. The tap is the habit.
Stick. Link. Tap.
Stick
Put the sticker on the lid, not the body. Any NTAG213 or NTAG215. Amazon packs are fine. No branded kit.
Link
Open LidTap, name the supplement, hold the top of the iPhone to the lid. About ten seconds. You do this once.
Tap
Next time you take it, tap the lid. The time is logged. Works from the lock screen. No typing.
The physical how-to — lid placement, which tags, lock screen — how to put an NFC tag on a supplement bottle.
What this is not
- Not a hotel card or a tourist tag. LidTap does not open a menu, a room key, or a guidebook. It opens the log on your iPhone.
- Not a business card. The tag does not open a website for other people.
- Not a pregnancy tracker. LidTap does not do cycles, prenatal schedules, or anything in that category.
- Not a pillbox. You do not pour pills into a new container. The bottle you already bought stays the bottle.
- Not a smart-home scene. It does not toggle lights or run Shortcuts as the product.
It is also not a medical device. A tap is a timestamp next to a name you typed. Don’t rely on it for medication or an emergency.
Why the bottle is the point
A card lives in a wallet you are not holding at 7am. A hotel key is a different object than creatine. A bottle is the thing you just opened — kitchen stack or gym bag, same gesture. One tag per lid means you log the specific thing you took, not a shared box that stands in for the whole stack.
iPhone-only. No account. The log stays on the device. This website does not record doses.
If you are looking at Pulse (their NFC box): LidTap vs Pulse. Pulse is a hardware organizer. LidTap is a sticker on the lid you already have.
