PV Solar Tilt

PV Solar Tilt

Obtain optimal PV tilt angle

157 ratings
18 reviews
$19.99 Free
In-App PurchasesWith Ads

Price history


Details

  • Released
  • Updated
  • December 28, 2019
  • May 13, 2026

Features

PV Solar Tilt screenshot #1 for iPhone
PV Solar Tilt screenshot #2 for iPhone
PV Solar Tilt screenshot #3 for iPhone
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About

Determine the ideal tilt angle for your photovoltaic system to maximize electricity generation. This app provides solar data, optimization tools, and an on-site inclinometer to ensure your panels are optimally positioned for your location.

Solar data charts
Tilt vs azimuth optimization
Optimal tilt angle for any location
Optimal orientation
Monthly, daily, and hourly tilt optimization
On-site inclinometer
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What's New in PV Solar Tilt

20.0

May 13, 2026

- Performance improvements - Minor bug fixes Thank you! PV Solcast Team pvsolcast.com

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In-App Purchases

$14.99

Lifetime license

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User reviews

Update. Premium finally back after a few months

My premium features were gone from January to May, now finally back! Thanks Igor!

I have loved this app, Optimal Tilt, and found it very useful in adjusting my ground mounted solar panel’s angle each month in order to have the best production.

However, when I just opened the app, it now only shows the optimal annual tilt! This ruins the whole point of the app! Before, I could depend on the app to tell me the optimal tilt for any month, day, and even the hour during any given day! Now, it is useless!

I only gave my previous review 3 stars, because even though I paid for a lifetime license, it still showed ads, and not all features were showing.
But it’s fixed! All is now well, no ads, and everything is working like it’s supposed to. For anyone with a solar system, especially with an adjustable ground mounted rack, or who is contemplating a new system and wanting to know what angle will work best for each month, day, or even hour, this app is really great! Yet very simple to use! A very worthwhile app to have!
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Premium upgrade is worthless. Don’t pay for it

Got taken by this unscrupulous developer. Paid for the premium to get the daily recommendation Tried deleting and reinstalling and resetting the internet connection but the app still asks to be paid.

Update to my previous 3 star review

Igor is the best! I discovered an issue with the app not showing more than just basic yearly information, even though I have the lifetime premium version, and contacted him about it. He got back to me the same day with a few questions which I answered. The next day he emailed me to let me know it was fixed and to be sure I had version 19.0. I updated it, and viola! It’s now working! A one day turn around and resolution! Igor is the best!

I updated my review shown below, and gave one star because of the issues I’m having, and also emailed Igor about it. I have deleted and re-installed the app a few times, but so far, no change. But after doing so, I noticed that it appeared that there must be some kind of temporary glitch going on. And then very quickly Igor emailed me to try to resolve what’s going on. That says a lot, because any product or app is bound to have an issue now and then. But what makes a successful company, product, or app, is those who not only stand behind the app, but are quick to respond, as Igor is doing. So I have restored my 5 star rating. Here’s hoping we can get this resolved soon.

Hello,

I have loved this app, Optimal Tilt, and found it very useful in adjusting my ground mounted solar panel’s angle each month in order to have the best production.

However, when I just opened the app, it now only shows the optimal annual tilt! This ruins the whole point of the app! Before, I could depend on the app to tell me the optimal tilt for any month, day, and even the hour during any given day! Now, it is useless!

I have tried to see if settings, swiping up, down, left, or right, but I don’t see any way to see anything more than the useless annual tilt!

PLEASE RESTORE THE FEATURES THAT I PAID FOR AND THAT MADE THIS A USEFUL APP!

I only gave my previous review 3 stars, because even though I paid for a lifetime license, it still showed ads, and not all features were showing.
But it’s fixed! All is now well, no ads, and everything is working like it’s supposed to. For anyone with a solar system, especially with an adjustable ground mounted rack, or who is contemplating a new system and wanting to know what angle will work best for each month, day, or even hour, this app is really great! Yet very simple to use! A very worthwhile app to have!
Show more

Incorrect tilt angle calculations

If you submit a location like Aleppo in Syria, it says the tilt angle should be 0 while it should be 9 to 10 ideally

Daily Angle is not correct

Today is May 5 in San Carlos, CA. I queried three solar tilt applications go determine the optimal tilt angle to set my portable panels to today.

Tilt (this app) says 12 degrees
Sun Seeker says 21 degrees
Simply Solar says 20 degrees

Developer apps

FAQ

What does the PV Solar Tilt app do?

This app helps you determine the optimal tilt angle for your photovoltaic (PV) panels to maximize electricity generation. It uses sophisticated simulations based on your location to provide the most appropriate angle for your panels.

What are the key features of PV Solar Tilt?

Key features include solar data charts (elevation, azimuth, sunrise/sunset times), tilt vs. azimuth optimization, finding the optimal tilt angle for any location, optimal orientation, and monthly, daily, or hourly tilt angle optimization. It also includes an on-site inclinometer for measuring angles.

How much does PV Solar Tilt cost?

The app is free to download and use, but it offers in-app purchases. Specific pricing for features or advanced functionalities would be detailed within the app's store listing or upon accessing those features.

Who is the target audience for this app?

The app is designed for anyone who owns or is installing a photovoltaic system, including homeowners, solar installers, and project managers, who want to ensure their system generates the maximum possible electricity.

How does the app help maximize electricity generation?

By calculating the optimal tilt angle for your PV panels based on your specific location and the sun's path, the app ensures your panels are positioned to receive the most direct sunlight throughout the day and year, thereby increasing energy yield.