Comparison

Comet4 vs EVA

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

Head to head
About

Comet4

Features
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Comet4 It is the first system on the market that allows to carry out an antibiotic screening test automatically and share the results in real time. Just apply a drop of milk to the test tube and Comet4 will automatically perform the test in less than 2.5 hours. Results are sent to your smart device, cloud account or email in real time.

About

EVA

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EVA - Your Smart Energy Management Assistant Take control of your home energy with EVA, the comprehensive mobile app for monitoring and managing your solar installations, battery storage, and dynamic charging systems. KEY FEATURES Real-Time Energy Monitoring - Live energy flow visualization - Solar production tracking - Battery charge status and capacity - Grid consumption and injection monitoring - Instant power readings (kW) Smart Battery Management - Automatic charge/discharge optimization - Dynamic charging based on energy prices - Vacation mode for extended absences - Battery health monitoring - Customizable charging strategies Energy Statistics & Analytics - Daily, weekly, monthly, and yearly views - Consumption vs. production analysis - Interactive charts and graphs - Energy cost tracking - Historical data comparison Price Optimization - Real-time energy price tracking - Country-specific pricing (Belgium, France) - Automatic charging during low-price periods - Maximize savings by selling at peak prices - Price forecasts and trends Installation Management - Multi-installation support - Switch between locations easily - Individual configuration per site - Installation-specific statistics - Remote monitoring from anywhere User-Friendly Interface - Clean, intuitive dark theme design - Easy navigation between features - Quick access to all controls - Multi-language support (EN, FR, NL) - Responsive design for all screen sizes PERFECT FOR - Homeowners with solar panels - Battery storage system owners - Smart home enthusiasts - Energy-conscious users - Anyone looking to reduce electricity costs WHY CHOOSE EVA? EVA puts you in complete control of your energy system. Monitor your solar production in real-time, optimize battery charging based on electricity prices, and make informed decisions about your energy consumption. Whether you're at home or away, EVA keeps you connected to your energy system. With EVA, you can: - Reduce energy costs by optimizing when to charge and discharge - Maximize self-consumption of solar energy - Track your environmental impact - Stay informed with detailed statistics - Control everything from your smartphone SECURE & RELIABLE Your data security is our priority. EVA uses encrypted connections to protect your information and ensure safe access to your energy systems. GETTING STARTED 1. Download EVA 2. Log in with your credentials 3. Select your installation 4. Start monitoring and optimizing! SUPPORT Need help? Contact us at info@evaportal.be Visit our website: https://www.evaportal.be Privacy Policy: https://www.evaportal.be/privacy/ Transform the way you manage energy. Download EVA today and take the first step toward smarter, more efficient energy use!

Screenshots

Comet44 screens
EVA4 screens

Verdict

The call

The clearest difference is update cadence: EVA at every 3 weeks against Comet4's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Comet4 ships an update every 6 months, EVA every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard1 real difference ยท 5 level
Comet4 versus EVA: the parameters behind the verdict, then further details
ParameterComet4EVA
PriceFreeFree
Update frequencyEvery 6 monthsEvery 3 weeks โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.615.1 โ€” better
Further details โ€” not scored
Size33 MB62 MB
Age rating4+4+
DeveloperAndres Mena TobarMy EMS

In-app purchases

None

Comet4

No in-app purchases

None

EVA

No in-app purchases

Questions

Is Comet4 free?
Comet4 is free to download, with no in-app purchases.
Is EVA free?
EVA is free to download, with no in-app purchases.
Do Comet4 or EVA have ads?
Neither Comet4 nor EVA shows ads.
Which is updated more often, Comet4 or EVA?
Comet4 ships an update every 6 months, and EVA every 3 weeks. Most recently, Comet4 was updated on November 3, 2026 and EVA on October 31, 2026.

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