Comparison

ME Smart vs Sonar

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

Head to head
About

ME Smart

Features
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ME Smart connects devices that use, produce or store larger amounts of electricity. It determines when it makes sense to use, produce or store just the right amount of electricity via utilising our AI Strategies. ME Smart Controller links solar power plants, energy storage systems, heat pumps, and electric chargers to the ME Smart system. It manages electricity production and consumption, adjusts power draw from the grid, and uses advanced algorithms to ensure cost-effective energy use and maximum self-sufficiency. ME Smart Gateway This extension of the ME Smart system converts RS485 serial signals into TCP/IP signals. It is used when the ME Smart Controller’s two RS485 inputs are insufficient or when the device’s distance makes cable connections impractical. Additionally, the Gateway can control third-party devices via two relay outputs, such as a heat pump using SmartGrid Ready (SG Ready) or an EVU contact. The ME Smart Converters capture billing measurement data from meters with specific outputs without the need of additional power. The P1 and P1 – WiFi model wirelessly connects meters like the Iskraemeco AM550 to your network via WiFi or cable. The I1 (M-Bus) – Cable model connects meters like the Landis+Gyr E350 and E450 to the ME Smart controller via a wired connection. We optimize: ME Smart connects devices that use, produce or store larger amounts of electricity. It determines when it makes sense to use, produce or store just the right amount of electricity via utilising our AI Strategies. Smart EV Charging: When you at your home or in work, your vehicle could and should be charged the way it gets the battery full for the lowest cost possible. This becomes even more important if your company owns and charges multiple vehicles. Demand Response: When there is too much electricity available on the market, the result in low or even negative energy prices. You can benefit by adapting your use or production of energy to match what the market needs: use less or more, depending on the time. Supported devices: ME Smart can connect to more than 250 devices across 50 brands.

About

Sonar

Features
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SONAR: HIDDEN CAMERA AND TRACKER DETECTOR Sonar helps you check for hidden cameras, hidden microphones, and Bluetooth/Wi-Fi trackers, a privacy inspection support tool with infrared, Wi-Fi network, and Bluetooth scanning. Whether you're in a motel room, hotel, Airbnb, locker room, public restroom, fitting room, car, or your own luggage, Sonar helps you inspect the space in minutes. IMPORTANT: no phone app can guarantee with certainty that a space is free of hidden cameras. Sonar is a support tool, each finding comes with a confidence level so you can physically check the spot it flags. Always use it alongside a manual inspection. DETECTOR FEATURES Infrared scanner Point your phone's camera and look for the telltale reflection of hidden spy camera lenses, a common sign in cameras disguised as a button camera, pen camera, charger, smoke detector, or clock. Works best in a dark room and doesn't replace a physical check. Wi-Fi network and Bluetooth device detection Sonar scans the local Wi-Fi network and nearby Bluetooth devices to flag devices with characteristics of connected cameras or trackers. Each result shows a confidence level, not a definitive confirmation. Bluetooth tracker detector Flags signals from Bluetooth trackers nearby: in your car, bag, luggage, or personal belongings, as support against unwanted tracking during travel and everyday life. Guided sweep A practical checklist walks you through spots where cameras and microphones are commonly hidden: outlets, smoke detectors, picture frames, mirrors, chargers, clocks, and more, so you can physically inspect each one. Clear, straightforward results See the confidence level of each finding, with real-time visual indication, no technical jargon. WHY USE SONAR Works offline Simple interface anyone can use Fast: full sweep in just a few minutes No complicated sign-up GREAT FOR - Motel, hotel, and Airbnb stays - Short-term rentals and vacation homes - Locker rooms, gyms, and public restrooms - Store fitting rooms - Checking your car and luggage for trackers - Confidential meetings and work spaces YOUR PRIVACY COMES FIRST Hidden cameras and trackers are more common than you'd think. Sonar exists to give you a support tool for checking your space, simple and accessible, always as a complement to your own inspection, never as an absolute guarantee. WHERE YOU CAN USE SONAR Hotel room · Motel room · Airbnb · Vacation rental · Bed and breakfast · Hostel · Resort · Spa · Sauna · Public restroom · Gym locker room · Pool locker room · Club locker room · Store fitting room · Lingerie fitting room · Event or theater dressing room · Meeting room · Shared office · Coworking space · Rental car · Uber or taxi · Rented beach house · Vacation cabin · Guest room at someone else's home · Doctor's office or clinic · Short-term rental property THE GUIDED CHECKLIST COVERS COMMON SPOTS LIKE Smoke detector · Wall clock · Desk clock · Alarm clock · Phone charger · USB wall adapter · Power strip · Wi-Fi router · Bluetooth speaker · Wall art · Picture frame · Mirror · Desk lamp · TV remote control · Teddy bear · Glasses · Pen · Keychain · Fake potted plant · Book on a shelf Download Sonar now and run your first sweep in under 2 minutes. ---------------------------- Terms of Use (EULA): https://sonarcameradetector.com/terms

Screenshots

ME Smart4 screens
Sonar4 screens

Verdict

The call

The clearest difference is device support: ME Smart at 3 against Sonar's 1. ME Smart also leads on iOS requirement (13.0 vs 16.4). 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

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

ME Smart ships an update every 2 weeks, Sonar every 3 weeks. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 4 level
ME Smart versus Sonar: the parameters behind the verdict, then further details
ParameterME SmartSonar
PriceFreeFree
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.4
Further details — not scored
Size44 MB52 MB
Age rating4+4+
DeveloperMERKUR EnergijaCaue Mattos Silvestre

In-app purchases

None

ME Smart

No in-app purchases

None

Sonar

No in-app purchases

Questions

Is ME Smart free?
ME Smart is free to download, with no in-app purchases.
Is Sonar free?
Sonar is free to download, with no in-app purchases.
Do ME Smart or Sonar have ads?
Neither ME Smart nor Sonar shows ads.
Which is updated more often, ME Smart or Sonar?
ME Smart ships an update every 2 weeks, and Sonar every 3 weeks. Most recently, ME Smart was updated on October 5, 2026 and Sonar on October 4, 2026.

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