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

SOLARO has great study-focused features:

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

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

~ Detailed solutions accompany every practice question. This way, you learn not only what you got incorrect, but how to solve those problems next time.

~ Over 300 remedial lessons accompany every SOLARO course, and they are linked directly from the practice questions for even further help.

~ Includes built-in study notes and flashcard creation, which stay in sync across devices and on

~ 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.

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

What’s New

Version 4.5

Made some bug fixes when logging in with multiple profiles on a phone vs an iPad.

Ratings and Reviews

3.0 out of 5
23 Ratings

23 Ratings

123louly123 ,


I agree. Book is amazing and cheaper than the app. They should either discount or make it a one time fee giving choice of hard copy or app for future buyers.

Ah-phael ,


Just a waist of time.

Gevjudgkygg ,

Girl trying to pass chem

Overall the app seems really great. I have used the books SOLARO offers for a couple of years now. In the book there is an ad for the app so I thought I would give it a try. As I said it seems great but I don’t thinks it’s reasonable to pay 30 bucks a month for info I already have in book format. Maybe offer the online version free or at a discounted price for those who buy the book. Just an idea still love the books


Castle Rock Research Corp.
74.5 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© 2017 Castle Rock Research Corp. All rights reserved.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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