Comparison

Metal Detector・EMF Reader vs BeyBuilder

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

Head to head
About

Metal Detector・EMF Reader

Transform your iPhone into a versatile tool for detecting metal objects, locating wall studs, and measuring EMF levels. Utilize the device's built-in magnetometer for real-time insights into magnetic fields and signal strength, perfect for various DIY and utility tasks.

Highlights
  • Detect nearby metal objects
  • Find wall studs, screws, nails, pipes
  • Real-time magnetic field readings
  • Live EMF meter and graph visualization
  • Signal confidence indicator
  • Axis-based directional detection
Features
Read full description

Turn your iPhone into a powerful Metal Detector, Stud Finder & EMF Reader using the built-in magnetometer sensor. Metal Detector helps you locate nearby metal objects, detect magnetic fields, analyze EMF levels, and visualize live magnetometer readings directly from your device. Whether you’re searching for hidden metal, locating wall studs, checking electronics for EMF activity, or exploring magnetic fields around you, this app gives you real-time precision and easy-to-read insights. Perfect for DIY projects, construction work, home improvement, electronics testing, hobby exploration, and everyday utility use. FEATURES • Detect nearby metal objects using your iPhone’s magnetometer • Find wall studs, screws, nails, pipes, and hidden metallic objects • Real-time magnetic field readings in microtesla (µT) • Live EMF meter and magnetometer graph visualization • Signal confidence indicator for stronger detections • Axis-based directional detection system • Smooth real-time graphing of magnetic field activity • Minimal, clean, and professional interface • Fast and lightweight performance • Works instantly with supported iPhones HOW IT WORKS The app uses your iPhone’s built-in magnetometer sensor to measure magnetic field strength. When metal or magnetic objects are nearby, the magnetic field changes and the app displays the variation in real time. You can use Metal Detector to: • Locate metal studs in walls • Find hidden screws or nails • Detect magnetic interference • Measure EMF activity around electronics • Explore magnets and magnetic fields • Scan objects for metallic presence GREAT FOR • DIY & home improvement • Construction & renovation • Electricians & technicians • Hobbyists & explorers • Educational science experiments • Everyday utility detection IMPORTANT NOTES • Accuracy depends on your iPhone’s magnetometer sensor • Best results occur with ferromagnetic metals like iron and steel • Does not work for non ferrous metal like Aluminum, gold, silver • Thick walls or heavy interference can affect readings • Remove magnetic phone accessories for improved accuracy Download Metal Detector today and transform your iPhone into a smart magnetic field scanner, EMF reader, and stud finder tool. Terms of service - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

BeyBuilder

Features
Read full description

BeyBuilder is the Beyblade X companion for serious bladers. Track your full parts collection, build and evaluate combos across BX, UX, and CX systems, and organize tournament-ready decks — all in one fast, offline app. Build smarter. Win more. BeyBuilder helps Beyblade X players manage their collection and craft tournament-ready combos without spreadsheets or guesswork. Track your collection Add individual parts or full sets from a built-in library of blades, ratchets, bits, and CX components. Filter by type, search instantly, and always know what you own. Build & evaluate combos Pick parts in the interactive builder and see live stats: Attack, Defense, Stamina, Burst Resistance, Dash, and LAD. Get a composite score, predicted type, total weight, and matchup notes as you build. Organize for tournaments Save unlimited combos, sort by score or date, and group them into decks (up to 3 combos per deck) so you’re ready when it’s time to register. BX, UX & CX support Switch between standard BX/UX builds and full CX Custom Line setups with lock chips, over blades, metal blades, and assist blades. Works offline Your data stays on your device. Export and import your collection anytime to back up or move to a new phone. Built for bladers, by bladers Stats sourced from community data and official references. Dark, mobile-first design that feels at home on iPhone. Whether you’re prepping for locals or chasing the meta, BeyBuilder keeps your parts and combos in one place.

Screenshots

Metal Detector・EMF Reader3 screens
BeyBuilder4 screens

Verdict

The call

The clearest difference is in-app purchases: BeyBuilder at none against Metal Detector・EMF Reader's 1. BeyBuilder also leads on update cadence (every 3 days vs weekly) and device support (3 vs 1). On price, ads and iOS requirement 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. Metal Detector・EMF Reader sells 1 one-off in-app purchase. BeyBuilder asks for nothing beyond the download.

UpkeepUpdate frequency

Metal Detector・EMF Reader ships an update weekly, BeyBuilder every 3 days. The most recent releases landed on August 9, 2026 and September 8, 2026 respectively.

Scorecard3 real differences · 7 level
Metal Detector・EMF Reader versus BeyBuilder: the parameters behind the verdict, then further details
ParameterMetal Detector・EMF ReaderBeyBuilder
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.615.6 — better
Further details — not scored
Size18 MB7 MB
Age rating4+4+
DeveloperYash MandhyanGerald Chin

In-app purchases

1 purchases

Metal Detector・EMF Reader

One-time1
  • Lifetime Access$1.99
None

BeyBuilder

No in-app purchases

Questions

Is Metal Detector・EMF Reader free?
Metal Detector・EMF Reader is free to download, with in-app purchases available.
Is BeyBuilder free?
BeyBuilder is free to download, with no in-app purchases.
Do Metal Detector・EMF Reader or BeyBuilder have ads?
Neither Metal Detector・EMF Reader nor BeyBuilder shows ads.
Which is updated more often, Metal Detector・EMF Reader or BeyBuilder?
Metal Detector・EMF Reader ships an update weekly, and BeyBuilder every 3 days. Most recently, Metal Detector・EMF Reader was updated on August 9, 2026 and BeyBuilder on September 8, 2026.

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