Comparison

Solar Planner vs Solar PV System Designer

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

Head to head
About

Solar Planner

Features
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App to calculate the solar production. The app calculates the reduced solar earnings compared to an optimal panel position. Two factors reduce the real solar earnings: 1. The direction and the tilt angle of the solar panel. 2. The shadowing due to buildings or trees. The yellow area in the pictureΒ shows the possible positions of the sun during the year. The brown area represents the ground to the horizon. Using augmented reality the shadowing is drawn directly on the screen by repainting the buildings or trees. The direction and the tilt angle of the solar panel are set by using the direction and tilt angle of the iPhone/iPad. Either by holding the iPhone/iPad in the direction of the sun. Or by laying the iPhone/iPad on the solar panel. (The tilt angle can be 90Β° at maximum.) The result of the calculation shows the solar earnings compared to the highest possible solar earning in percent. The solar earnings are also shown in a year diagram and a day diagram. The Calculations can be used for photovoltaic and solar heating systems. Used methodology: For every time during the year the position of the sun at the sky depending on the geographic location is calculated.Β The solarisation on the panel is calculated by taking into account the panel direction and the panel tilt angle. The solarization is summed up for all times without shadowing. The calculated solar earning of the calculated panel position is shown compared to the maximal possible solar earning in percent. Therms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Solar PV System Designer

Features
Read full description

Solar PV System Designer - Full Description Solar PV System Designer is a comprehensive battery bank configuration tool that takes the guesswork out of designing safe and efficient energy storage systems for your solar PV setup. Simply input the number of batteries you have and their voltage, and the app automatically calculates all possible output voltage configurations based on your available batteries. The intelligent algorithm analyzes series and parallel combinations to show you every safe wiring option. Key Features: Automatic Voltage Calculations - Instantly see all achievable voltage configurations from your battery inventory, whether you need 12V, 24V, 48V, or custom arrangements. Visual Configuration Display - View clear, interactive diagrams showing exactly how batteries should be connected in series and parallel to achieve each voltage option. Safety-First Design - Every configuration is validated to ensure safe operation, preventing dangerous wiring mistakes before they happen. Wire Size Recommendations - Get precise wire gauge recommendations for each configuration, ensuring proper current handling and minimizing voltage drop. Total Capacity Calculations - See the complete watt-hour (Wh) capacity for your entire battery bank across all configurations. Interactive Schematic Generator - Select your desired output voltage and instantly receive a detailed wiring schematic showing exactly how to connect your batteries, complete with wire gauge specifications for each connection. Perfect for DIY solar enthusiasts, off-grid homeowners, and professionals who want to design battery banks quickly, safely, and correctly the first time.

Screenshots

Solar Planner4 screens
Solar PV System Designer3 screens

Verdict

The call

The clearest difference is in-app purchases: Solar PV System Designer at none against Solar Planner's 3. Solar PV System Designer also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). Solar Planner's advantage is update cadence (daily vs weekly). On price and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Solar Planner sells 3 in-app purchases, starting at $3.99 per 7 days. Solar PV System Designer asks for nothing beyond the download.

UpkeepUpdate frequency

Solar Planner ships an update daily, Solar PV System Designer weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard4 real differences Β· 2 level
Solar Planner versus Solar PV System Designer: the parameters behind the verdict, then further details
ParameterSolar PlannerSolar PV System Designer
PriceFreeFree
Update frequencyDaily β€” betterWeekly
AdsYesNo β€” better
In-app purchasesYesNo β€” better
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.015.0 β€” better
Further details β€” not scored
Size7 MB222 MB
Age rating4+4+
DeveloperSophisticated Engineering UG (haftungsbeschrankt)Cepoi Mario

In-app purchases

3 purchases

Solar Planner

Subscriptions3
  • worldwide - 1 week$3.997 Days
  • worldwide - 1 month$8.991 Month
  • worldwide - 1 year$89.991 Year
None

Solar PV System Designer

No in-app purchases

Questions

Is Solar Planner free?
Solar Planner is free to download, with in-app purchases available.
Is Solar PV System Designer free?
Solar PV System Designer is free to download, with no in-app purchases.
Do Solar Planner or Solar PV System Designer have ads?
Solar Planner shows ads; Solar PV System Designer does not.
Which is updated more often, Solar Planner or Solar PV System Designer?
Solar Planner ships an update daily, and Solar PV System Designer weekly. Most recently, Solar Planner was updated on October 30, 2026 and Solar PV System Designer on October 25, 2026.

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