Comparison

Solar Panel Calculator Plus vs Solar Calculators

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

Head to head
About

Solar Panel Calculator Plus

Calculate custom off-grid solar home power systems. Determine the exact number of solar panels and battery capacity needed for your energy usage. Helps plan system size, inverter requirements, and battery bank specifications.

Highlights
  • Calculate solar panel requirements
  • Determine battery capacity
  • Calculate inverter size
  • Estimate daily energy usage
  • Plan days of autonomy
  • Optimize battery life calculations
Features
Read full description

Solar Panel Calculator Plus calculate custom Off-Grid Solar Home Power Systems. Use these handy calculator to help decide which system size is right for you. You can calculate the Exact Number of Solar Panels You Need For Your Usage Plus the Space you need. Also include Battery Capacity for your Home Power Systems. Daily energy use: Find the energy used in a day. Figure out how long each electronic device will be run in hours during a day. Multiply the wattage of each device by its run-time to get the energy in watt-hours per day. Add up all the watt-hour values to get a total for your home. Example: Light bulbs run for 5 hours a day. Computer runs for 2 hours a day. 100 x 5 + 300 x 2 = 1100 watt-hours. Inverter size: To determine the inverter size we must find the peak load or maximum wattage of your home. This is found by adding up the wattage of the appliances and devices that could be run at the same time. Include everything from microwaves and lights to computers and clocks. The sum will tell you which inverter size you need. Example: A room has two 60 watt light bulb and a 300 watt desktop computer. The inverter size is 60 x 2 + 300 = 420 watts. Multiply with 1.2 or 1.5 into a safe area. Days of autonomy: Now decide how many days worth of energy you want to store in your battery bank. Generally this is anywhere from two to five. Battery bank capacity: Example: You want the battery bank to last three days without recharging and that you use 5.0 kwh per day. As 5.0 x 3 x 2 = 30.0kwh, this is the energy we need from the batteries. Converting this to AH we have to divide by the voltage of your system. This can be 12, 24 or 48 for commercial application. If we choose to use 48V, the minimum AH capacity is then 30 000/48 = 625 AH. Now if you divide by your battery's rating you find the number of batteries you must use. The larger the system you have, the higher the voltage you should have. It is normal to match a 12 V battery bank to a 400 W power system. A 5 kW system would work most appropriately with a 48 V wiring system, in order to decrease current flow in the wires. Note: All calculations assume only a 50% discharge to your batteries to optimize battery life. Note: Colder temperatures have a negative effect on the capacity of your battery bank. If your battery bank is always indoors in a heated area then you don't have a problem. But if they're stored in an unheated area during the winter then you'll need to account for this. Solar Panel: The most typical solar panel size used for residential installations is 65 inches by 39 inches. And the wattage output range from 200 - 330 watts. *Thanks for your support, stay tune for more update to come

About

Solar Calculators

This app helps you transition to renewable energy by visualizing your environmental impact and energy needs. It provides custom panel recommendations and estimates your home's solar production potential using hyper-local data.

Highlights
  • Impact Tracker for carbon offset visualization
  • Smart Energy Estimates with hyper-local solar data
  • Tailored Design for custom panel recommendations
  • Visualize environmental impact
  • Predict home production potential
Features
Read full description

Power Your Life With the Sun. Join the movement toward a cleaner planet. The Solar Calculator app is your personal consultant for transitioning to renewable energy. We bridge the gap between "going green" and "staying practical" by visualizing your environmental impact alongside your energy needs. Impact Tracker: See your carbon offset in real-world terms (like trees planted or cars off the road). Smart Energy Estimates: Use hyper-local solar data to predict your home’s production potential. Tailored Design: Receive custom panel recommendations based on your specific energy footprint. The future is renewable. Download Solar Calculator and leave a smaller footprint starting now.

Screenshots

Solar Panel Calculator Plus4 screens
Solar Calculators4 screens

Verdict

The call

The clearest difference is rating: Solar Panel Calculator Plus at 3.3 against Solar Calculators's 2.5. Solar Panel Calculator Plus also leads on review sentiment (25% vs 0%) and ratings volume (23 vs 2). Solar Calculators's advantage is update cadence (every 6 months vs every 47 months). On ads, in-app purchases, monetization model 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

Solar Panel Calculator Plus costs $2.99 and Solar Calculators $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Solar Panel Calculator Plus holds the better App Store score, 3.3 against 2.5. That said, the two scores are not equally well evidenced: Solar Panel Calculator Plus has 23 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 25% of Solar Panel Calculator Plus's written reviews are positive against 0% of Solar Calculators's.

UpkeepUpdate frequency

Solar Panel Calculator Plus ships an update every 47 months, Solar Calculators every 6 months. The most recent releases landed on October 27, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 5 level
Solar Panel Calculator Plus versus Solar Calculators: the parameters behind the verdict, then further details
ParameterSolar Panel Calculator PlusSolar Calculators
Price$2.99 — better$3.99
Rating3.3 (23 ratings) — better2.5 (2 ratings)
Positive reviews25.0% of reviews — better0.0% of reviews
Number of ratings23 — better2
Update frequencyEvery 47 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size8 MB21 MB
Age rating4+4+
DeveloperNitrioKantaben Gorasiya

Customer experience

Solar Panel Calculator Plus

All ratings23 ratings
Positive52.2%
Neutral4.3%
Negative43.5%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

Solar Calculators

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Solar Panel Calculator Plus

No in-app purchases

None

Solar Calculators

No in-app purchases

Questions

Is Solar Panel Calculator Plus free?
Solar Panel Calculator Plus costs $2.99, with no in-app purchases.
Is Solar Calculators free?
Solar Calculators costs $3.99, with no in-app purchases.
Which has better reviews, Solar Panel Calculator Plus or Solar Calculators?
Solar Panel Calculator Plus is rated higher. Solar Panel Calculator Plus averages 3.3 out of 5 from 23 ratings, while Solar Calculators averages 2.5 from 2 ratings.
Do Solar Panel Calculator Plus or Solar Calculators have ads?
Neither Solar Panel Calculator Plus nor Solar Calculators shows ads.
Which is updated more often, Solar Panel Calculator Plus or Solar Calculators?
Solar Panel Calculator Plus ships an update every 47 months, and Solar Calculators every 6 months. Most recently, Solar Panel Calculator Plus was updated on October 27, 2026 and Solar Calculators on October 13, 2026.

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