Comparison

Note by Chat & Send Files vs EMF Detector

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Note by Chat & Send Files

Features
Read full description

Most note apps are bloated. They make simple things complicated. We made SelfChatNote to do the opposite. — THINK IN STREAMS — Your mind doesn't work in folders and documents. It flows. SelfChatNote works the same way – just write what's on your mind, like texting yourself. Pin the important stuff. Archive what's done. Drag to rearrange. That's it. — TODOS WITHOUT ANOTHER APP — Why do you need a separate app for tasks? You don't. Write your todos alongside your thoughts. Flip to Todo View when you need to see everything. Check things off. Move on with your life. — SEND FILE QUICK — Sometimes dropping doesn't work. Sometimes you're on different networks. Sometimes your PC doesn't even support it. We get it. Send File Quick lets you move files between your desktop and phone without the headache. Scan a code, pick a file, done. No cables. No cloud uploads. No waiting for devices to "discover" each other. — MARKDOWN, IF YOU WANT — We support it. But we won't force it on you. Just type normally if that's your thing. — THE POINT — No clutter. No complexity. Just you and your thoughts, organized the way they naturally flow. Terms of Use: http://www.apple.com/legal/itunes/appstore/dev/stdeula

About

EMF Detector

Transform your iPhone into an EMF detector and gauss meter. Measure magnetic fields in real-time, with options for ghost hunting, metal detection, and stud finding. Export your session logs for detailed analysis.

Highlights
  • Live EMF detection with peak hold
  • Switchable units (µT, mG, Gauss)
  • Zero/calibrate function
  • Ghost hunt mode with audio/haptics
  • Metal and stud finder
  • Session logging with CSV/PDF export
Features
Read full description

Turn your iPhone into an EMF detector and gauss meter. EMF Detector reads the built-in magnetometer and shows live magnetic field in microtesla, milligauss, or Gauss — the same units a handheld meter uses. This app measures magnetic fields. It does not measure Wi‑Fi, 5G, or ionizing radiation. What you can do • Live EMF detector with peak hold and average • Switch units: µT, mG, Gauss • Zero / calibrate to ignore Earth’s field and hunt nearby sources • Ghost hunt mode: audio and haptics on magnetic spikes (used by investigators as a starting point, not a spirit detector) • Metal and stud finder: sweep a wall to find studs, pipes and wiring • XYZ charts and field direction compass • Session log with CSV and PDF export Ghost hunt & metal Walk slowly. Zero the meter, then sweep. Spikes mean a changing magnetic field — speakers, transformers, studs, or wiring. Audio maps spike strength so you can hunt without watching the screen. Pro removes ads and unlocks direction, full history, high-EMF alerts, and PDF export. Support: support@neuralfulai.com Terms: https://neuralfulai.com/terms-of-use/ Privacy: https://neuralfulai.com/privacy-policy-apps/

Screenshots

Note by Chat & Send Files3 screens
EMF Detector4 screens

Verdict

The call

The clearest difference is in-app purchases: Note by Chat & Send Files at none against EMF Detector's 3. Note by Chat & Send Files also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). EMF Detector's advantage is update cadence (every 2 months vs every 11 months). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. EMF Detector sells 3 in-app purchases, starting at $3.99 per 7 days. Note by Chat & Send Files asks for nothing beyond the download.

UpkeepUpdate frequency

Note by Chat & Send Files ships an update every 11 months, EMF Detector every 2 months. The most recent releases landed on October 28, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 6 level
Note by Chat & Send Files versus EMF Detector: the parameters behind the verdict, then further details
ParameterNote by Chat & Send FilesEMF Detector
PriceFreeFree
Rating—4.6 (108 ratings) — better
Positive reviews—60.0% of reviews
Number of ratings—108 — better
Update frequencyEvery 11 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size26 MB191 MB
Age rating17+4+
DeveloperShotdoorNeuralful Ai ltd

In-app purchases

None

Note by Chat & Send Files

No in-app purchases

3 purchases

EMF Detector

Subscriptions2
  • week$3.997 Days
  • yearlypro3 Days trial$14.991 Year
One-time1
  • emfmeter$29.99

Questions

Is Note by Chat & Send Files free?
Note by Chat & Send Files is free to download, with no in-app purchases.
Is EMF Detector free?
EMF Detector is free to download, with in-app purchases available.
Do Note by Chat & Send Files or EMF Detector have ads?
EMF Detector shows ads; Note by Chat & Send Files does not.
Which is updated more often, Note by Chat & Send Files or EMF Detector?
Note by Chat & Send Files ships an update every 11 months, and EMF Detector every 2 months. Most recently, Note by Chat & Send Files was updated on October 28, 2026 and EMF Detector on November 8, 2026.

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