Comparison

WiFi Controller ESP8266 vs Magnetometer・Magnetic Field

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

Head to head
About

WiFi Controller ESP8266

This app enables communication with ESP8266 WiFi modules using TCP/IP. It allows sending and receiving messages, custom button configurations, and adjustable sliders for device control. Keep your screen on or off while managing your connected devices.

Highlights
  • Send and receive messages via TCP/IP
  • Auto-connect to last selected device
  • Customizable buttons for frequent data
  • Configurable sliders
  • Keep screen on/off option
Features
Read full description

INTRODUCTION: -WiFi Controller is used to send and receives messages to Arduino with ESP8266 WiFi module using TCP/IP Protocol. -To connect with device you have to add IP & PORT of device and select it. FEATURES: - Auto connectivity with last selected device. - By, Long pressing of any button you can custom your own buttons for frequent sending of same data. - Configurable sliders. -Keep Screen on/off option. Slider's Default Commands: - Slider 1: A0 to A255 - Slider 2: B0 to B255 - Slider 3: C0 to C255

About

Magnetometer・Magnetic Field

This app visualizes your phone's magnetic field sensor readings, showing deviations from a calibrated baseline. It features a live waveform, haptic feedback for peaks, and adjustable sensitivity for detailed analysis.

Highlights
  • Magnetic field deviation from baseline
  • Live waveform display
  • Haptic feedback for peaks
  • Adjustable sensitivity levels
  • Peak count and duration summaries
  • Calibration for local baseline
Features
Read full description

Magnetometer shows you the magnetic field your phone can already sense. Calibrate a local baseline, then watch how far the field moves away from it — live, in microtesla (µT). How it reads • The big number is deviation from your calibrated baseline in µT, not an absolute field value • An arc gauge moves through four states: Weak, Moderate, Strong and Peak • A rolling waveform shows how the field changed over the last few seconds • Raw X, Y and Z components are listed under the gauge in µT Peaks you can feel • A local peak — a rise followed by a fall — triggers a full-screen flash and haptic feedback • A beep repeats faster and gets louder as the signal gets stronger, so you can watch where the phone is instead of the screen Control the measurement • Calibration establishes your local baseline and rates it: Excellent, Good, Fair or Poor • Four sensitivity levels change how strongly the normalized signal is scaled • High Precision filters noise harder — stronger smoothing, a stricter peak threshold and a longer debounce. Fewer false peaks and a slightly slower response; it does not amplify the signal • Stop a scan yourself and it is saved as a summary: peak count, duration, mode and calibration quality. Up to 100 summaries stay on your device Where people use a magnetometer • Checking whether a screwdriver, scissors or a tool tip has become magnetised • Comparing how strong different fridge magnets, speaker magnets or clasps are • Seeing how the field around a running motor, speaker or appliance changes with distance • Finding out whether a phone case, wallet or stand contains a magnet • Physics homework and classroom demonstrations that need a live µT reading • Simply seeing what the magnetic sensor inside your phone actually reports What makes this magnetometer different Most apps show one absolute number and leave you guessing whether it is high. This one asks you to calibrate where you are standing first, then reports the deviation from that baseline — so the reading answers "how much did the field change here" instead of "what is the field somewhere on Earth". The waveform, the four strength states and the peak flash all describe the same measured signal, and the app is explicit about what it cannot tell you. Getting a clean reading • Calibrate away from metal, magnets and electronics • Move the phone slowly and steadily • Take off cases that contain metal or magnets • Recalibrate when you move to a different room or surface What this app does not do Magnetometer reports what the sensor reads. It cannot tell you what caused a reading, and it does not identify magnetic sources, objects, materials or where they are. It is not a stud finder, a wall scanner or a metal detector, and it makes no claim about anything behind a wall or any other surface. Readings depend on your device's magnetometer and on nearby interference — treat them as a relative guide, not as a professional measuring instrument or a structural inspection tool. Your measurement summaries stay on this device. Requires a device with a built-in magnetometer. Available in 33 languages. Some of the features described require a subscription. Terms of Use: https://zeroplay.io/docs/legal/terms-of-service Privacy Policy: https://zeroplay.io/docs/legal/privacy-policy

Screenshots

WiFi Controller ESP82664 screens
Magnetometer・Magnetic Field4 screens

Verdict

The call

The clearest difference is price: Magnetometer・Magnetic Field at Free against WiFi Controller ESP8266's $0.99. WiFi Controller ESP8266's advantage is rating (3.0 vs 1.0) and ads (none vs shown). On update cadence, in-app purchases 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

Magnetometer・Magnetic Field is free to download; WiFi Controller ESP8266 costs $0.99 up front. WiFi Controller ESP8266 sells 1 one-off in-app purchase and Magnetometer・Magnetic Field sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

WiFi Controller ESP8266 holds the better App Store score, 3.0 against 1.0. That said, the two scores are not equally well evidenced: WiFi Controller ESP8266 has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of WiFi Controller ESP8266's written reviews are positive against 0% of Magnetometer・Magnetic Field's.

UpkeepUpdate frequency

WiFi Controller ESP8266 ships an update every 2 months, Magnetometer・Magnetic Field every 3 months. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard7 real differences · 3 level
WiFi Controller ESP8266 versus Magnetometer・Magnetic Field: the parameters behind the verdict, then further details
ParameterWiFi Controller ESP8266Magnetometer・Magnetic Field
Price$0.99Free — better
Rating3.0 (6 ratings) — better1.0 (1 ratings)
Positive reviews33.3% of reviews — better0.0% of reviews
Number of ratings6 — better1
Update frequencyEvery 2 months — betterEvery 3 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.1
Further details — not scored
Size31 MB102 MB
Age rating4+4+
DeveloperGopi GadhiyaZeroPlay Ltd.

Customer experience

WiFi Controller ESP8266

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Magnetometer・Magnetic Field

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

WiFi Controller ESP8266

One-time1
  • Remove Ads$3.99
2 purchases

Magnetometer・Magnetic Field

Subscriptions2
  • Weekly3 Days trial$7.997 Days
  • Monthly3 Days trial$19.991 Month

Questions

Is WiFi Controller ESP8266 free?
WiFi Controller ESP8266 costs $0.99, and also offers in-app purchases.
Is Magnetometer・Magnetic Field free?
Magnetometer・Magnetic Field is free to download, with in-app purchases available.
Which has better reviews, WiFi Controller ESP8266 or Magnetometer・Magnetic Field?
WiFi Controller ESP8266 is rated higher. WiFi Controller ESP8266 averages 3.0 out of 5 from 6 ratings, while Magnetometer・Magnetic Field averages 1.0 from 1 ratings.
Do WiFi Controller ESP8266 or Magnetometer・Magnetic Field have ads?
Magnetometer・Magnetic Field shows ads; WiFi Controller ESP8266 does not.
Which is updated more often, WiFi Controller ESP8266 or Magnetometer・Magnetic Field?
WiFi Controller ESP8266 ships an update every 2 months, and Magnetometer・Magnetic Field every 3 months. Most recently, WiFi Controller ESP8266 was updated on October 29, 2026 and Magnetometer・Magnetic Field on October 31, 2026.

Other comparisons