Comparison

Classkick vs Sadlier Reader

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

Head to head
About

Classkick

This app allows students to complete assignments digitally and receive instant feedback from teachers and classmates. Educators can create paperless assignments, monitor student progress in real-time, and facilitate peer-to-peer learning. It aims to increase student feedback and reduce grading time.

Highlights
  • Create paperless assignments
  • Real-time student work monitoring
  • Instant teacher feedback
  • Anonymous peer-to-peer help
  • Work at own pace
  • Ask for help privately
Features
Read full description

Classkick is a free app that students work on and get help instantly from their teacher and peers. Students work on assignments with their Chromebooks, laptops, or iPads, while getting help from teachers and peers instantly. Teachers create assignments, see all their students’ work in real-time, and give LOTS of student feedback. Best of all, students can help each other anonymously. Using Classkick, feedback to students increases by 300% and grading time is cut in half. “Classkick is every teacher’s dream.” - Lynne Shalman, Chapin School “Students love Classkick...it was magic!” - Greg Port, Seton College TEACHERS... - CREATE paperless assignments using existing worksheets, audio, video or web content. - SEE every students’ work simultaneously. - GIVE instant feedback when it is most important. - FACILITATE peer-to-peer feedback and learning. STUDENTS... - WORK at their own pace and even on their own time. - ASK for help privately. - HELP their peers. USE IT... - in class or at home. - in traditional or flipped classrooms. - as a group together or on your own time individually. FOR… - assignments - quizzes - station work - do nows/exit slips - guided practice - independent practice - homework

About

Sadlier Reader

Access your assigned eBooks offline with this educational reader. Bookmark, annotate, and navigate your digital textbooks seamlessly. Requires an access code from your institution.

Highlights
  • Offline eBook access
  • Bookmark pages
  • Annotate content
  • Seamless navigation
  • Linked to Sadlier Connect
Features
Read full description

The Sadlier Reader app is a new offering for Sadlier customers that allows access to their eBooks offline and on the go. Linked to your Sadlier Connect account licenses, eBook products purchased and assigned for offline use will automatically appear within your app when you log in. eBooks are not purchased within the app. An access code is required for login and can be found in “My Account” within Sadlier Connect or Christ In Us if your institution has purchased an offline eBook. With this unique offering, readers may bookmark, annotate their pages, and navigate their materials like any other reader experience.

Screenshots

Sadlier Reader4 screens

Verdict

The call

The clearest difference is rating: Sadlier Reader at 3.7 against Classkick's 3.1. Sadlier Reader also leads on device support (3 vs 1) and iOS requirement (13.4 vs 15). Classkick's advantage is review sentiment (33% vs 0%) and update cadence (every 9 days vs every 25 months). On price, ads, in-app purchases and monetization model 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sadlier Reader holds the better App Store score, 3.7 against 3.1. That said, the two scores are not equally well evidenced: Classkick has 728 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 33% of Classkick's written reviews are positive against 0% of Sadlier Reader's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Classkick ships an update every 9 days, Sadlier Reader every 25 months. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
Classkick versus Sadlier Reader: the parameters behind the verdict, then further details
ParameterClasskickSadlier Reader
PriceFreeFree
Rating3.1 (728 ratings)3.7 (3 ratings) — better
Positive reviews33.0% of reviews — better0.0% of reviews
Number of ratings728 — better3
Update frequencyEvery 9 days — betterEvery 25 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPhone, iPad, iPod — better
Requires iOS1513.4 — better
Further details — not scored
Size73 MB84 MB
Age rating4+4+
DeveloperClasswork CoWilliam H Sadlier Inc

Customer experience

Classkick

All ratings727 ratings
Positive49.5%
Neutral5.8%
Negative44.7%
Written reviews264 reviews
Positive33.0%
Neutral8.7%
Negative58.3%

Sadlier Reader

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Classkick

Reported bugs

3 issues
  • Assignments not loading properly
  • Inability to save or access work
  • Incompatibility with newer devices/OS

Requested features

4 requests
  • Add split-screen support
  • Improve text/writing controls
  • Better Apple Pencil integration
  • Enhance stability and performance

Sadlier Reader

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Classkick

No in-app purchases

None

Sadlier Reader

No in-app purchases

Questions

Is Classkick free?
Classkick is free to download, with no in-app purchases.
Is Sadlier Reader free?
Sadlier Reader is free to download, with no in-app purchases.
Which has better reviews, Classkick or Sadlier Reader?
Sadlier Reader is rated higher. Classkick averages 3.1 out of 5 from 728 ratings, while Sadlier Reader averages 3.7 from 3 ratings.
Do Classkick or Sadlier Reader have ads?
Neither Classkick nor Sadlier Reader shows ads.
Which is updated more often, Classkick or Sadlier Reader?
Classkick ships an update every 9 days, and Sadlier Reader every 25 months. Most recently, Classkick was updated on October 24, 2026 and Sadlier Reader on October 24, 2026.

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