Comparison

Ready to Learn vs Magnetometer+ Metal Detector

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

Head to head
About

Ready to Learn

Features
Read full description

Ready to Learn © systemet gir operativt personell rask og enkel tilgang til viktige lærdommer, med tydelige anbefalinger om hvilke tiltak som bør gjøres for å unngå gjentatte hendelser. Ready to Learn © systemet inneholder unike lærdommer fra tusenvis av historiske operasjoner fra hele verden, nye data mates kontinuerlig inn i systemet og nye lærdommer genereres.

About

Magnetometer+ Metal Detector

Transform your device into a magnetic field detector. It measures magnetic field strength in real-time with a 3-axis display and provides visual alerts for metal and magnet detection. Explore the invisible magnetic world around you with a sleek, intuitive interface.

Highlights
  • Real-time magnetic field measurement
  • 3-axis directional analysis
  • Metal and magnet detection alerts
  • Radar-style magnetic scanner
  • N/S/E/W compass markings
  • Adjustable sensitivity
Features
Read full description

Magnetometer+ turns your iPhone's magnetic sensor into a metal detector and stud finder for iron and steel hidden in walls, floors and furniture, and shows the magnetic field around you in µT. ▶ WHAT IT FINDS — AND WHAT IT DOES NOT It detects ferrous metal: screws and nails in studs and joists, steel pipes, rebar, hinges, brackets and door strikes. The range is a few centimetres, so hold the phone against the surface and sweep slowly. It cannot detect gold, silver, copper, aluminium, wood or plastic. Those materials are not magnetic, and no phone sensor can find them. If you are looking for buried coins or copper wiring, this is not the tool. ▶ CALIBRATES FROM YOUR HAND Every phone's magnetic sensor carries a large built-in offset from its own speaker and battery magnets. Magnetometer+ learns that offset while you turn the phone, so tilting the phone does not look like metal. When the meter opens, a progress bar shows how far calibration has come: turn the phone slowly in every direction, and when the bar is full the reading goes live with a short vibration. Zero here re-learns it wherever you are. ▶ THREE METER MODES • Auto — a radial gauge of the field deviation • Earth Field — total field strength with a latitude band (low, normal, elevated, high) • Metal Detector — deviation from the background field with an intensity verdict, plus optional vibration pulses that quicken as you get closer ▶ SCANNER AND STUD FINDER The Scanner tab has a metal scanner for sweeping a surface and a Stud Finder that marks the strongest point as you slide the phone flat across a wall. It finds the nails and screws that hold drywall to the studs; it does not see the wood itself. ▶ COMPASS A compass with magnetic north or true north and the local declination. ▶ LIVE DATA • X, Y and Z field components on a live chart • Min, average, max and peak with elapsed time • Sensitivity from 0.5x to 2.0x • µT, mT and Gauss units ▶ HISTORY AND EXPORT • Readings are saved with a 7-day trend and a plain-language comparison • Favourites and side-by-side comparison of two readings • Continuous one-second logging with CSV export • Share a reading as an image, optional GPS tag on saved readings • Statistics report, unlocked for 24 hours by watching a short ad USEFUL FOR DIY AND RENOVATION · FINDING STUDS AND JOISTS · CHECKING FOR REBAR OR PIPES BEFORE DRILLING · PHYSICS CLASS AND MAGNET EXPERIMENTS

Screenshots

Ready to Learn4 screens
Magnetometer+ Metal Detector3 screens

Verdict

The call

The clearest difference is ads: Ready to Learn at none against Magnetometer+ Metal Detector's shown. Ready to Learn also leads on device support (3 vs 1). Magnetometer+ Metal Detector's advantage is update cadence (every 4 days vs monthly). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Ready to Learn ships an update monthly, Magnetometer+ Metal Detector every 4 days. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
Ready to Learn versus Magnetometer+ Metal Detector: the parameters behind the verdict, then further details
ParameterReady to LearnMagnetometer+ Metal Detector
PriceFreeFree
Rating—3.0 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyMonthlyEvery 4 days — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size48 MB62 MB
Age rating4+17+
DeveloperReady To Learn ASKyu-Hee Jang

In-app purchases

None

Ready to Learn

No in-app purchases

None

Magnetometer+ Metal Detector

No in-app purchases

Questions

Is Ready to Learn free?
Ready to Learn is free to download, with no in-app purchases.
Is Magnetometer+ Metal Detector free?
Magnetometer+ Metal Detector is free to download, with no in-app purchases.
Do Ready to Learn or Magnetometer+ Metal Detector have ads?
Magnetometer+ Metal Detector shows ads; Ready to Learn does not.
Which is updated more often, Ready to Learn or Magnetometer+ Metal Detector?
Ready to Learn ships an update monthly, and Magnetometer+ Metal Detector every 4 days. Most recently, Ready to Learn was updated on October 9, 2026 and Magnetometer+ Metal Detector on October 10, 2026.

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