Help Center

Quick start

Start here

1. Open the Detect tab. Pro mode shows a live reading of the magnetic flux density around your iPhone, drawn straight from its built-in magnetometer.

2. Calibrate when prompted. Trace a slow figure-8 in the air for about 15 seconds, away from metal. This cancels the fixed offset added by cases and magnets.

3. Explore slowly. Move the phone close to appliances, wall wiring or speakers and watch the number and the reference bar respond.

For a first ritual we recommend the Guided Home Check: tap the house icon in the toolbar, pick a room, scan four spots, and you get a clean reference report to keep.

Reading the numbers

What it usually means	Range
Low — shielded spots, away from electronics	0–25 μT
Earth's natural field — the normal zone	25–65 μT
Common near powered appliances, wiring, speakers, magnets	65–200 μT
A strong magnet or ferrous mass very close	200+ μT

Absolute accuracy varies from phone to phone, so treat the figures as a guide and trust relative changes — how the reading moves as you move. You can switch units in Settings between μT, mG, G and mT.

What it can & can't measure

Veil reads your iPhone's magnetometer, and we'd rather be straight about what that means.

It can detect:

• Magnetic fields from appliances and in-wall wiring
• Magnets — in cases, mounts, closures and toys
• Hidden ferrous metal such as pipes, studs and rebar
• Speaker drivers and their magnets

It can't detect:

• Wi-Fi, Bluetooth or 5G signals
• RF leakage from microwave ovens

Those are radio-frequency emissions, and measuring them requires dedicated RF hardware that no phone contains. An app that claims to show "Wi-Fi radiation" from a phone is showing decorative numbers.

Calibration

Why: cases, magnetic mounts and nearby magnets add a fixed offset to every reading. Calibration measures that offset and subtracts it.

How: hold the phone and trace a slow, smooth figure-8 for about 15 seconds, at least a step away from large metal objects.

When: after changing your case, roughly once a month, or whenever the interference banner appears.

Ghost Mode

Ghost Mode is our entertainment mode — a playful nod to the classic K2 meter. It spends about 15 seconds learning the baseline field of the room, then lights its lamp bar whenever the field deviates from that baseline, across four anomaly levels.

You can tune the sensitivity to make the lamps more or less eager. Running a session produces an Activity Score — a number that exists purely for fun, not as a measurement of anything.

Want a different look? The skin button at the top right switches between visual styles.

One honest reminder: Ghost Mode reacts to magnetic deviations — wiring, metal, your own movement. It is entertainment, and it claims nothing beyond that.

FAQ

How accurate is it?

Good enough for relative comparison — finding where a field is stronger or weaker. It is not a certified measuring instrument, and readings are for reference only.

Why does the reading jump near metal?

Physics. Ferrous metal bends and concentrates magnetic field lines, so the field at the sensor genuinely changes when iron or steel is close.

Why can't it see Wi-Fi?

Wi-Fi is a radio-frequency emission, and the iPhone has no RF power sensor that apps can read. A magnetometer simply measures a different physical quantity.

How are ghost anomalies computed?

The app learns a statistical baseline of the local field, then flags readings that are outliers against that baseline. The bigger the deviation, the more lamps light up.

How often should I calibrate?

After every case change, roughly monthly, or whenever readings look off.

How do I manage or cancel my subscription?

In your App Store account: Settings → Apple ID → Subscriptions. Cancel at least 24 hours before renewal. The Lifetime unlock is a one-time purchase — there is nothing to cancel.

Troubleshooting

• Stuck or odd readings — recalibrate with the figure-8 motion.
• Constantly high reading — usually a magnetic case, mount or nearby metal. Remove the case, step away, recalibrate.
• "No sensor" message — the device has no magnetometer (some iPads and the Simulator).
• No sound — check the silent switch on the side of the phone and the toggle in Settings → Sounds.

Contact

Questions, ideas, or a bug to report? We read everything — usually the same day.

Email Pandasroom@outlook.com