Comparison

Math Shelf vs St. John Paul II

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

Head to head
About

Math Shelf

This app provides an experimentally proven program to enhance early mathematics achievement for preschool and kindergarten students. It offers on-level instruction through adaptive learning and placement tests, aligning with Common Core Standards.

Highlights
  • Experimentally proven to increase math achievement
  • Common Core Aligned content
  • Adaptive learning and placement tests
  • Cloud-based syncing for school and home
  • Free 7-day trial
  • Supports iPhone, iPad, and iPod
Read full description

Math Shelf is experimentally proven to increase preschool and Kindergarten students' mathematics achievement. **** Winner Re-Imagine Education Best Learning App **** From over 3,000 entries Math Shelf won the Silver Medal for best learning app. **** Common Core Aligned ***** Math Shelf's content exceeds the expectations in the Kindergarten Common Core Standards. **** On Level Instruction for Every Student **** Placement tests and adaptive learning provide on level learning for every student in your class. **** Cloud Based ***** Play Math Shelf on any iPad or iPhone. Students can play for free at home and data will sync to their school account. **** Experimentally Proven **** Read our 3 peer-reviewed published studies at www.mathshelf.com/research. ****Valhalla Foundation Funded**** Program Related Investment and grant recipient from the Valhalla Foundation to improve early math education. **** Heising-Simons Foundation Funded **** Grant recipient Heising-Simons Foundation to improve early mathematics education. **** Free Trial **** Try Math Shelf with your students for 7 days. **** Technology Requirements **** iPhone 6 and above. Plays on iOS 12.0 and above. You may purchase an auto-renewing subscription through an In-App Purchase. You can access all games and administrative features. Auto-renewable subscription -1 month ($4.99) period, for 2 students access. -1 year ($41.99) period, for 2 students access. Your subscription will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Privacy Policy: https://mathshelf.com/privacy Terms Of Use: https://mathshelf.com/terms

About

St. John Paul II

This app connects parents, students, teachers, and administrators with school news, event calendars, and online resources. It provides quick access to essential information to keep the school community informed and engaged.

Highlights
  • School news updates
  • Interactive event calendars
  • Access to online resources
  • Administrator tools
  • Student information portal
Features
Read full description

The St. John Paul II app enables parents, students, teachers and administrators to quickly access the resources, tools, news and information to stay connected and informed! The St. John Paul II app features: - Important news from your school - Interactive resources including event calendars and more - Quick access to online resources

Screenshots

Math Shelf2 screens
St. John Paul II3 screens

Verdict

The call

The clearest difference is rating: Math Shelf at 4.7 against St. John Paul II's 3.0. Math Shelf also leads on ratings volume (15 vs 4). St. John Paul II's advantage is in-app purchases (none vs 10) and update cadence (every 3 weeks vs every 4 months). On price, ads, device support and iOS requirement 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. Math Shelf sells 10 in-app purchases, starting at $4.99 per month. St. John Paul II asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Math Shelf holds the better App Store score, 4.7 against 3.0. Both are backed by a comparable volume of ratings — 15 and 4 respectively.

UpkeepUpdate frequency

Math Shelf ships an update every 4 months, St. John Paul II every 3 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Math Shelf versus St. John Paul II: the parameters behind the verdict, then further details
ParameterMath ShelfSt. John Paul II
PriceFreeFree
Rating4.7 (15 ratings) — better3.0 (4 ratings)
Positive reviews80.0% of reviews—
Number of ratings15 — better4
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size380 MB70 MB
Age rating4+4+
DeveloperJohn SchacterSt John Paul II Catholic High School

Customer experience

Math Shelf

All ratings13 ratings
Positive92.3%
Neutral0.0%
Negative7.7%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

St. John Paul II

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

10 purchases

Math Shelf

Subscriptions2
  • 1 Month Access7 Days trial$4.991 Month
  • 1 Year Access7 Days trial$41.991 Year
One-time8
  • 1 Students Monthly Subscription$1.99
  • 1 Student Monthly Subscription$2.99
  • 2 Students Monthly Subscription$3.99
Show 5 more
  • 3 Students Monthly Subscription$5.99
  • 2 Students Monthly Subscription$5.99
  • 3 Students Monthly Subscription$8.99
  • 3 Students Subscription$9.99
  • 4 Students Monthly Subscription$11.99
None

St. John Paul II

No in-app purchases

Questions

Is Math Shelf free?
Math Shelf is free to download, with in-app purchases available.
Is St. John Paul II free?
St. John Paul II is free to download, with no in-app purchases.
Which has better reviews, Math Shelf or St. John Paul II?
Math Shelf is rated higher. Math Shelf averages 4.7 out of 5 from 15 ratings, while St. John Paul II averages 3.0 from 4 ratings.
Do Math Shelf or St. John Paul II have ads?
Neither Math Shelf nor St. John Paul II shows ads.
Which is updated more often, Math Shelf or St. John Paul II?
Math Shelf ships an update every 4 months, and St. John Paul II every 3 weeks. Most recently, Math Shelf was updated on November 1, 2026 and St. John Paul II on October 30, 2026.

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