EON vs NL Sensor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EON
Experience immersive remote learning and training with augmented and virtual reality. Create and share engaging lessons, interact with 3D models, and track progress through assessments. Ideal for students, educators, and professionals seeking hands-on virtual experiences.
- Conduct remote learning and training in AR/VR
- Create and publish lessons from mobile devices
- Interact with over 1 million digital assets
- Group virtual sessions for students and employees
- Code-free content creation platform
- Assess user performance with quizzes
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EON-XR is an Augmented and Virtual Reality app packed with features for conducting remote learning and training in a hands-on, immersive environment. Lessons and training sessions can be completed in AR or VR modes either independently or within groups, providing countless possibilities for students, educators, employers and employees. Through EON-XR, users can quickly create compelling content on their phones, tablets, computers and headsets using EON Reality’s expansive library of more than 1 million digital assets as well as importing or purchasing assets from other sources. Key Features - Create, publish, demonstrate, record and assess lessons and content all from a smartphone or tablet - Gather students, employees or trainees to interact virtually with the lesson and the instructor in a safe virtual space - Intuitive and code-free platform designed to encourage both students and instructors to create content for deeper learning and engagement - Embed asynchronous videos alongside the 3D models and 360° environments to allow self-paced learning at any time - Evaluate user performance through assessment and quizzes to effectively track progress
NL Sensor
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NL Sensor turns your iPhone or iPad into a live dashboard for Nu Lambda Scientific Bluetooth sensors. Connect a sensor, watch the data stream in real time, analyze it on the spot, and export it — all on device, with nothing sent to the cloud. MEASURE ANY SENSOR IN THE FLEET • Motion / distance, force / load, voltage, current, pressure, illuminance, 3-axis magnetometers, dual-thermistor temperature probes, and photogates are detected automatically by name. • Metric cards show the current value and a stable 40-point average. • Set the sample rate from 1 to 100 Hz right from the app. LIVE CHARTS BUILT FOR THE LAB • A smooth 10-second sliding window while you measure. • Pause to pan and pinch-zoom — each axis zooms independently, so you can stretch time or values on their own — then show all data, reset, or clear. • Drag to select a region and get a least-squares linear fit (slope, intercept, R²) or statistics (mean, standard deviation, count). • Expand any chart to full screen. MOTION, VELOCITY & ACCELERATION • Motion sensors add derived velocity (m/s) and acceleration (m/s²) charts, computed with smoothed derivatives. PRESSURE & TEMPERATURE • Pressure sensors add a Temperature-vs-Time chart and a Pressure-vs-Temperature graph, with a fine ±0.1 hPa scale for reading small changes. DUAL TEMPERATURE • Dual-thermistor probes show T₁ and T₂ together on one chart plus a separate chart for each, colour-coded red and green. PHOTOGATE EXPERIMENTS • A photogate sensor turns beam-block timing into seven ready-made experiments: Basic Free Fall, Single Gate, Two-Gate Timer, Pendulum Period, Speed (two-stripe card), Pulley, and Two Gates. • Get distance–time and speed–time graphs, oscillation periods with average and spread, angular motion from a pulley, and precise gate timing — then linear-fit a speed–time graph to read acceleration straight off the slope. WALK THE GRAPH • Turn distance-time graphs into a movement challenge: pick a target curve, walk to match it, and get a live score for how well your motion tracks the graph. Five graph sets from basic to creative. TWO SENSORS AT ONCE • Connect two sensors and compare them on an XY chart that pairs their latest readings in real time. • Pause the XY chart to pan, pinch-zoom, drag-select a range for a linear fit or statistics, and tap any point to read its A / B values. TONE GENERATOR (NO SENSOR NEEDED) • A built-in signal generator, open straight from the dashboard. Play a pure sine tone from 0.5 Hz to 20,000 Hz with a slider, exact numeric entry, and a fine/coarse adjust pad. • Run a frequency sweep (chirp) with your own start, final, step size and step duration, and a live progress bar — great for hearing tests, resonance hunts, and Doppler demos. • Switch to Dual Tone to sound two independent tones at once for beats, musical intervals, superposition, and masking. Set amplitude and output channel (both, left, or right) for each tone. EXPORT EVERYTHING • Export any chart, the XY data, or the entire session as CSV through the iOS share sheet. PRIVACY • All measurements stay on your device. No account, no tracking, no data collection. NL Sensor requires a compatible Nu Lambda Scientific Bluetooth sensor. A built-in demo mode lets you explore the app without hardware.
Screenshots
Verdict
The clearest difference is iOS requirement: EON at 13.0 against NL Sensor's 17.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
EON ships an update every 3 weeks, NL Sensor every 2 weeks. Both last shipped on October 9, 2026.
| Parameter | EON | NL Sensor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (80 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 80 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 415 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | EON Reality | Nu Lambda Scientific Company Limited |
In-app purchases
EON
No in-app purchases
NL Sensor
No in-app purchases









