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.
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.
- 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
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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
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.
- Magnetic field deviation from baseline
- Live waveform display
- Haptic feedback for peaks
- Adjustable sensitivity levels
- Peak count and duration summaries
- Calibration for local baseline
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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
Verdict
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
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.
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.
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.
| Parameter | WiFi Controller ESP8266 | Magnetometer・Magnetic Field |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.0 (6 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 33.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 31 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | Gopi Gadhiya | ZeroPlay Ltd. |
Customer experience
WiFi Controller ESP8266
Magnetometer・Magnetic Field
In-app purchases
WiFi Controller ESP8266
- Remove Ads$3.99
Magnetometer・Magnetic Field
- Weekly3 Days trial$7.997 Days
- Monthly3 Days trial$19.991 Month
Questions
Is WiFi Controller ESP8266 free?
Is Magnetometer・Magnetic Field free?
Which has better reviews, WiFi Controller ESP8266 or Magnetometer・Magnetic Field?
Do WiFi Controller ESP8266 or Magnetometer・Magnetic Field have ads?
Which is updated more often, WiFi Controller ESP8266 or Magnetometer・Magnetic Field?
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