Comparison

Solar Panel Calculator Plus vs Appliance Cost Calculator Plus

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

Appliance Cost Calculator Plus

Features
Read full description

Determine the Cost of Using Appliances in Your Home. Use this calculator to find out the cost of using most major electric appliances. Simply enter the amount of electricity the appliance uses (in watts) and the length of time it is used (in hours), and instantly see the cost and energy consumption. Features: - User-friendly interface. - Add multiple appliances with custom settings. - More than 30 appliance templates ready for fast calculation. - Easily highlight which appliance costs the most. - Instant calculations with results including monthly cost, yearly cost, monthly kWh, and yearly kWh. - Lightweight app with a small size, optimized for everyday use. The Formula: - Electricity Usage Per Month = (Watts / 1000) * Hours/Day * 30 Days = kWh/month - Electricity Usage Per Year = (Watts / 1000) * Hours/Day * 365 Days = kWh/year - Electricity Cost Per Month = (cents/kWh / 100) * 30 Days = $/month - Electricity Cost Per Year = (cents/kWh / 100) * 365 Days = $/year Tips When Calculating Appliance Running Costs: Appliances such as lights, heaters, pumps, motors, and fans that draw constant power are ideal for use with this appliance cost calculator. Some appliances can be switched on 24/7 but only draw power for part of that time. For example, a refrigerator's compressor may only draw power for 8 to 12 hours per day. For these appliances, you can either estimate based on observations or use a power meter. For other appliances, power usage can vary significantly. For example, a dishwasher may use 2400W when heating, 50W when pumping water, and 5W in standby. Estimating an 'average power' for these appliances can be tricky. Any appliance that goes through a 'cycle' like this is best measured with a power meter. Note: For monthly cost calculations, the average number of days used is 30. Results should be used as an indication only and may vary based on the age of the appliance, the latest technology, and other factors. The overall cost of using each appliance in this calculator is approximate and does not include standby power. For example: - Energy use for air-conditioners and heaters depends on thermostat settings and the thermal performance of the room or house. - Energy use for dishwashers and washing machines depends on the wash cycle chosen (i.e., how long it runs) and whether your machine is connected to the hot water tap. 11 Energy-Saving Tips: 1. Use natural light and turn off unnecessary lights. A single south-facing window can illuminate 20 to 100 times its area. 2. Promote airflow through your home and block the afternoon sun during the summer. 3. Unplug unused electronics. Standby power can account for 10% of an average household's annual electricity use. 4. Any appliance that generates heat or cold consumes a lot of energy; use them wisely. 5. Manage your thermostat. If you have electric heat, lower your thermostat by two degrees to save 5% on your heating bill. Lowering it by five degrees could save 10%. 6. For air conditioners, set the temperature to 27°C instead of 17°C. Combined with a fan, you can achieve the desired result. 7. Wash only when there is a full load, and hang-dry your laundry/dishes. 8. Buy and use energy-efficient appliances, such as LED lights and energy-efficient cooking appliances. 9. Insulate your home to help stay warm in winter and cool in summer. 10. Adjust your day-to-day behaviors. 11. Consider making your house an energy-saving smart home. This appliance cost calculator estimates the cost and energy usage of any appliance. Calculate the cost/electricity consumption for an appliance or compare it with new appliances to be purchased. Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.

Screenshots

Solar Panel Calculator Plus4 screens
Appliance Cost Calculator Plus4 screens

Verdict

The call

Solar Panel Calculator Plus and Appliance Cost Calculator Plus are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 Appliance Cost Calculator Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Solar Panel Calculator Plus ships an update every 47 months, Appliance Cost Calculator Plus every 28 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

ScorecardNo meaningful differences
Solar Panel Calculator Plus versus Appliance Cost Calculator Plus: the parameters behind the verdict, then further details
ParameterSolar Panel Calculator PlusAppliance Cost Calculator Plus
Price$2.99$2.99
Rating3.3 (23 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings23 — better—
Update frequencyEvery 47 monthsEvery 28 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size8 MB1 MB
Age rating4+4+
DeveloperNitrioHeng Jia Liang

In-app purchases

None

Solar Panel Calculator Plus

No in-app purchases

None

Appliance Cost Calculator Plus

No in-app purchases

Questions

Is Solar Panel Calculator Plus free?
Solar Panel Calculator Plus costs $2.99, with no in-app purchases.
Is Appliance Cost Calculator Plus free?
Appliance Cost Calculator Plus costs $2.99, with no in-app purchases.
Do Solar Panel Calculator Plus or Appliance Cost Calculator Plus have ads?
Neither Solar Panel Calculator Plus nor Appliance Cost Calculator Plus shows ads.
Which is updated more often, Solar Panel Calculator Plus or Appliance Cost Calculator Plus?
Solar Panel Calculator Plus ships an update every 47 months, and Appliance Cost Calculator Plus every 28 months. Most recently, Solar Panel Calculator Plus was updated on November 2, 2026 and Appliance Cost Calculator Plus on November 7, 2026.

Other comparisons