Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app SOLARO — Improve Your Grades by Castle Rock Research Corp., get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

SOLARO — Improve Your Grades

By Castle Rock Research Corp.

Open iTunes to buy and download apps.


^_^ Sample any of our 1500+ classes for free, no email account required!

The SOLARO online study guide covers English language arts and mathematics from 3rd to 12th Grade. It also includes U.S. Common Core state standards.

SOLARO has great study-focused features:

~ Course-level Common Core year end practice tests for ELA and math*. All courses feature interactive question types that will be found in the new 2014–2015 digital assessments of SBAC ( and PARCC ( for this coming school year.

~ Topic-level practice tests which give you 20 questions to discover your weak spots across an entire topic.

~ Section-level practice quizzes which give you 6-question slices of a specific concept. Each section has multiple quizzes available, and no two are the same.

~ Detailed and step-by-step solutions accompany every practice question. This way, you don't just learn what you got incorrect, but how to solve those problems next time.

~ Over 300 pages of remedial lessons accompany every SOLARO class, and they are linked directly from the solutions so further help is just a tap away.

~ Built-in study tools-like flashcards and study notes-help you keep everything in one place and in sync across devices.

~ SOLARO aligns to the curriculum outcomes of all 50 U.S. states as well as the Canadian provinces of Alberta, Ontario, and British Columbia. Just tell SOLARO which state or province you live in, and it will customize itself to your regional standards. If you live outside one of these regions, please select either US Common Core or Alberta to get in-depth instruction on all the core concepts.

Using the SOLARO app requires a account.
Your free account allows you to try out our lessons and a practice quiz from the first section of the first topic in each class at no charge.

*Year end practice tests are currently available for Common Core 3rd-10th Grade ELA and Math.

What's New in Version 4.3.1

-_- Some users were experiencing longer than normal load times when launching the SOLARO app. This update corrects the issue.

^_^ All practice quizzes, tests, and homework assignments now load much faster. You will see a noticeable speed improvement in longer assessments, like our year-end practice tests that are 40+ questions long!


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5

Customer Reviews

Poor excuse for an educating app

You know I thought about giving this app 2 stars but I found it worthless because when I went to take a practice test that is included in the description I was told my account had expired and I needed to upgrade it. I created my account 2 minutes ago. I have learned nothing from this app except that it is a scam. DO NOT DOWNLOAD!

SOLARO — Improve Your Grades
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Education
  • Updated:
  • Version: 4.3.1
  • Size: 29.9 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
All Versions:

Top In-App Purchases

  1. One Month Of SOLARO At Home$25.99