Lunar Energy vs ARrayVue Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lunar Energy
Monitor your home's solar energy production, consumption, and storage in real-time. Gain confidence during power outages with backup duration estimates and maximize savings with automatic Lunar Mode. Participate in Virtual Power Plant programs to earn money.
- Real-time energy monitoring
- Backup power duration estimates
- Automatic savings optimization (Lunar Mode)
- Virtual Power Plant program enrollment
- Energy usage reports
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Open App. Operate Sun. With the brilliantly-designed Lunar App, it's that simple. - Watch how much energy your home is making, using, and storing in real-time. - Power through grid outages with confidence. The Lunar System seamlessly takes over during an outage, and the Lunar App shows you how long you'll last at your current electrical usage. - Save money. With Lunar Mode, your system will maximize savings automatically. - Enroll and earn money in Virtual Power Plant programs directly from the Lunar App. "The app is designed to show you just what you need to know: how much power you have for backup, how much you're consuming, and how much your solar is generating. It'll also give you an easily readable report on how power is being utilized at any given time." – The Verge
ARrayVue Lite
This app uses augmented reality and GPS to help you measure directions, place virtual markers, and lay out accurate geometries in the real world. It's ideal for surveying, construction planning, and outdoor mapping.
- Measure azimuth between points
- Place virtual markers by direction and distance
- AR-based rectangle layout
- Real-world visualization with AR
- Accurate GPS integration
- Field layout and planning
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A field compass you can finally trust. ARrayVue® Lite reads true-north bearings from GPS and augmented reality (AR) — not your phone's magnetometer — so nearby steel, rebar, vehicles, and local magnetic disturbances don't pull it off course, and there's no declination to set. From that same calibrated foundation it also measures distances and bearings between points, lays out new points and rectangles, and captures corner elevations — all visualized right in your camera view. Whether you're laying out a solar array, surveying land, planning an installation, marking boundaries, or aligning structures, ARrayVue Lite turns your phone into a practical field layout and directional-measurement tool. KEY FEATURES G-Compass — Calibrated AR Compass Read a stable true-north heading referenced to GPS, free of the magnetic interference and declination errors that throw off phone compasses and even quality sighting compasses. Readings are already true north — there's no magnetic declination to add or subtract. Sight the bearing to any object using the on-screen aiming crosshair. Two Point Measurement Mark two points — such as existing stakes — to instantly read the azimuth (bearing) and distance between them, so you can verify a layout was set correctly. Two Point Layout Place a point at a specified distance and azimuth from a reference point. Stake out with accurate orientation and spacing, even where tall grass or obstacles defeat a tape measure. Rectangle Layout Enter length, width, and orientation, and ARrayVue Lite generates the four corners in real space — so you can confirm the array fits the location and stake it out square. Walk to each corner to record its elevation and reveal the site's slopes for planning. Real-World AR Visualization See points, lines, and layouts overlaid directly onto your surroundings through augmented reality — no guesswork translating a drawing to the ground. Accurate GPS Integration A short guided calibration anchors every measurement to real-world coordinates and true north; from then on, your operations inherit that accuracy. IDEAL FOR - Solar array layout - Surveying and field layout - Construction and site planning - Land measurement - Outdoor mapping and orientation - Engineering and field operations HOW IT WORKS ARrayVue Lite calibrates augmented reality to GPS with a short walk between two points, then holds that reference as you work. For best results, use it outdoors with a clear view of the sky. ARrayVue Lite helps you plan, measure, and visualize spatial layouts with confidence — directly in the world in front of you.
Screenshots
Verdict
The clearest difference is price: Lunar Energy at Free against ARrayVue Lite's $6.99. Lunar Energy also leads on ratings volume (13 vs 4). On rating, 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
Lunar Energy is free to download; ARrayVue Lite costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Lunar Energy against 5.0 for ARrayVue Lite. Both are backed by a comparable volume of ratings — 13 and 4 respectively.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 20, 2026 and September 23, 2026 respectively.
| Parameter | Lunar Energy | ARrayVue Lite |
|---|---|---|
| Price | Free — better | $6.99 |
| Rating | 5.0 (13 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 13 — better | 4 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.4 — better | 17.6 |
| Further details — not scored | ||
| Size | 83 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Lunar Energy Limited | Solar Foundations USA, Inc. |
Customer experience
Lunar Energy
ARrayVue Lite
In-app purchases
Lunar Energy
No in-app purchases
ARrayVue Lite
No in-app purchases
Questions
Is Lunar Energy free?
Is ARrayVue Lite free?
Which has better reviews, Lunar Energy or ARrayVue Lite?
Do Lunar Energy or ARrayVue Lite have ads?
Which is updated more often, Lunar Energy or ARrayVue Lite?
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