Comparison

SPMS vs Solar Energy Forecast | Solev

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

Head to head
About

SPMS

Features
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研华光伏电站移动运维软件

About

Solar Energy Forecast | Solev

Optimize your solar energy usage and reduce your carbon footprint. Plan new photovoltaic systems or maximize the efficiency of existing ones by forecasting energy production and planning energy-demanding tasks.

Highlights
  • Forecast solar power and energy output
  • Calculate yearly yield and payback period
  • Optimize energy consumption
  • Digital twin of solar plant
  • Optimal tilt angle recommendations
  • Track past energy production
Features
Read full description

Solev helps you by saving you money and lowering your carbon footprint whether you plan to set up a photovoltaic system (like balcony solar systems) or already have one installed. With Solev you can determine the power and energy on an hourly scale. You can also determine the yearly yield and the payback period to purchase the optimal photovoltaic system for your needs. THE PROBLEM WITH SOLAR ENERGY Solar energy depends on weather conditions and the position of the sun. This weather dependency directly affects the self-consumption of energy produced by photovoltaic (PV) systems. Currently, only 30% to 37% of the generated energy is used directly. The rest is fed into the grid and sold often at a much lower price than the buying price. In some regions there isn’t even any compensation for feeding energy into the grid. Battery systems can help to buffer energy but they’re often too expensive to be cost-effective. The most effective way to optimize the usage of the PV system is by strategically planning energy-demanding tasks. THE SOLUTION WITH SOLEV Solev helps you in planning and optimizing your photovoltaic system. By setting up a digital twin of your solar plant, you can easily calculate power and energy output, estimate your potential savings, and make informed decisions even before purchasing a PV system. HOW IT WORKS With Solev, you can track the best time to run energy-demanding tasks and optimize your energy consumption while reducing reliance on expensive grid electricity. Our mission is to help homeowners with solar systems to increase their self-consumption rate to save money and lower their carbon footprint. To determine the self-consumption rate, it is possible to measure the power of your solar system and the power at the interface to the grid. Additionally, Solev provides insights into the optimal tilt angle of your PV plant based on your location and system orientation. You’ll receive forecasts about the energy potential for the upcoming days, along with a detailed overview of past energy production. With these tools, anyone can plan their PV plant like a pro and maximize efficiency. Therefore Solev is the perfect choice for: - People who strive for an off-grid living - Owners of photovoltaic systems who would like to save money by planning their energy consumption - Homeowners who plan to install a photovoltaic system - Investors and credit institutes who would like to determine the potential of an investment in solar energy - You and and many others Currently Solev supports the following power measurement interface: - Home Assistant (to measure Shelly, or other sensors) - More to come soon Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://solev.solar/privacy/

Screenshots

SPMS2 screens
Solar Energy Forecast | Solev4 screens

Verdict

The call

The clearest difference is in-app purchases: SPMS at none against Solar Energy Forecast | Solev's 4. SPMS also leads on iOS requirement (8.1 vs 16.0). Solar Energy Forecast | Solev's advantage is update cadence (fortnightly vs every 11 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Solar Energy Forecast | Solev sells 4 in-app purchases, starting at $3.99 per month. SPMS asks for nothing beyond the download.

UpkeepUpdate frequency

SPMS ships an update every 11 months, Solar Energy Forecast | Solev fortnightly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
SPMS versus Solar Energy Forecast | Solev: the parameters behind the verdict, then further details
ParameterSPMSSolar Energy Forecast | Solev
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 11 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.1 — better16.0
Further details — not scored
Size51 MB58 MB
Age rating4+4+
DeveloperAdvantechSolev UG (haftungsbeschrnkt)

In-app purchases

None

SPMS

No in-app purchases

4 purchases

Solar Energy Forecast | Solev

Subscriptions4
  • Monthly subscription$3.991 Month
  • Annual subscription$12.991 Year
  • Business Monthly$45.001 Month
Show 1 more
  • Business Annual$449.001 Year

Questions

Is SPMS free?
SPMS is free to download, with no in-app purchases.
Is Solar Energy Forecast | Solev free?
Solar Energy Forecast | Solev is free to download, with in-app purchases available.
Do SPMS or Solar Energy Forecast | Solev have ads?
Neither SPMS nor Solar Energy Forecast | Solev shows ads.
Which is updated more often, SPMS or Solar Energy Forecast | Solev?
SPMS ships an update every 11 months, and Solar Energy Forecast | Solev fortnightly. Most recently, SPMS was updated on October 26, 2026 and Solar Energy Forecast | Solev on October 24, 2026.

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