Comparison

Solar Panel Calculator Plus vs Goal Tracker

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

Goal Tracker

This application helps users set and achieve meaningful life goals. It allows for organization and tracking of progress across various life areas with customizable features and reminders. Users can monitor their achievements through simple charts and summaries.

Highlights
  • S.M.A.R.T. goal setting
  • Organize goals by life areas
  • Customizable area colors
  • Progress monitoring with charts
  • Goal reminders
  • iCloud synchronization
Features
Read full description

This app is your companion for setting and achieving meaningful goals. Whether you're planning for the year, month, or even a quarter, this app helps you organize and track your progress in different areas of life. Key Features: - S.M.A.R.T Goal Setting: Create goals that are specific, measurable, achievable, relevant, and time-bound, tailored to your life. - Different Life Areas: Organize your goals by areas like Health, Finances, Creativity, and Social, or create your own custom areas to suit your personal needs. - Custom Area Colors: Personalize each area with a color that helps you visually organize and distinguish between different parts of your life. - Reminders: Set reminders to log your progress and stay on top of your goals. - Progress Monitoring: Easily see how you're doing with simple charts and summaries. - Notes: Add detailed notes to each goal to keep track of ideas, thoughts, and progress. - Archiving: Once you’ve completed a goal, archive it to reflect on your achievements and keep your list organized. - iCloud Sync: Sync your goals, notes, and progress across all your devices seamlessly with iCloud. Whether you're making small changes or planning for something big, Goal Tracker: Plan & Progress is here to help you stay on track. Privacy Policy: https://sneawo.com/privacy-policy.html Terms of use: https://sneawo.com/terms.html If you encounter any problems or have any suggestions, please do not hesitate to contact me at support+goaltracker@sneawo.com

Screenshots

Solar Panel Calculator Plus4 screens
Goal Tracker4 screens

Verdict

The call

The clearest difference is price: Goal Tracker at Free against Solar Panel Calculator Plus's $2.99. Goal Tracker also leads on rating (5.0 vs 3.3) and update cadence (every 3 months vs every 47 months). Solar Panel Calculator Plus's advantage is in-app purchases (none vs 3) and ratings volume (23 vs 1). On 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

Goal Tracker is free to download; Solar Panel Calculator Plus costs $2.99 up front. Goal Tracker sells 3 in-app purchases, starting at $1.49 per month. Solar Panel Calculator Plus asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Goal Tracker holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Solar Panel Calculator Plus has 23 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Solar Panel Calculator Plus ships an update every 47 months, Goal Tracker every 3 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

Scorecard7 real differences · 3 level
Solar Panel Calculator Plus versus Goal Tracker: the parameters behind the verdict, then further details
ParameterSolar Panel Calculator PlusGoal Tracker
Price$2.99Free — better
Rating3.3 (23 ratings)5.0 (1 ratings) — better
Positive reviews25.0% of reviews—
Number of ratings23 — better1
Update frequencyEvery 47 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size8 MB15 MB
Age rating4+4+
DeveloperNitrioAndrey Zhukov

Customer experience

Solar Panel Calculator Plus

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

Goal Tracker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Solar Panel Calculator Plus

No in-app purchases

3 purchases

Goal Tracker

Subscriptions2
  • Premium3 Days trial$1.491 Month
  • Premium3 Days trial$6.991 Year
One-time1
  • Premium Lifetime$19.99

Questions

Is Solar Panel Calculator Plus free?
Solar Panel Calculator Plus costs $2.99, with no in-app purchases.
Is Goal Tracker free?
Goal Tracker is free to download, with in-app purchases available.
Which has better reviews, Solar Panel Calculator Plus or Goal Tracker?
Goal Tracker is rated higher. Solar Panel Calculator Plus averages 3.3 out of 5 from 23 ratings, while Goal Tracker averages 5.0 from 1 ratings.
Do Solar Panel Calculator Plus or Goal Tracker have ads?
Neither Solar Panel Calculator Plus nor Goal Tracker shows ads.
Which is updated more often, Solar Panel Calculator Plus or Goal Tracker?
Solar Panel Calculator Plus ships an update every 47 months, and Goal Tracker every 3 months. Most recently, Solar Panel Calculator Plus was updated on October 24, 2026 and Goal Tracker on October 22, 2026.

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