Comparison

COMath vs CSO de Boog

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

Head to head
About

COMath

This app acts as a personal math tutor, offering support and practice for arithmetic, algebra, and geometry. It provides over 100,000 word problems with step-by-step solutions and an equation solver to help students develop their math skills.

Highlights
  • Personalized math tutoring
  • Arithmetic practice (addition, subtraction, multiplication, division)
  • Over 100,000 math word problems
  • Step-by-step equation solving
  • Algebra and geometry support
  • Practice without pencils
Features
Read full description

COMath is a fun math and brain-training app for students and puzzle lovers of all ages. - Practice addition, subtraction, multiplication, and division - Solve 100,000+ math word problems with explanations - Learn algebra step by step with the equation solver - Enjoy number puzzles like Sudoku, Calcudoku, Fillomino, Minesweeper, Calculate 24, and more Practice math, sharpen logic, and enjoy solving challenges anytime, anywhere.

About

CSO de Boog

Features
Read full description

App voor de ouders en leerlingen van CSO De Boog in Apeldoorn om op de hoogte te blijven van de laatste nieuwtjes en roosterwijzigingen. Dit zijn de mogelijkheden: - Roosterwijzigingen bekijken - Push notificaties ontvangen voor roosterwijzigingen en nieuws - Agenda bekijken - Nieuwsberichten bekijken - Algemene school informatie bekijken

Screenshots

COMath4 screens
CSO de Boog4 screens

Verdict

The call

The clearest difference is ads: CSO de Boog at none against COMath's shown. CSO de Boog also leads on update cadence (every 5 days vs monthly) and iOS requirement (11.0 vs 15.0). On price, in-app purchases and device support 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.

UpkeepUpdate frequency

COMath ships an update monthly, CSO de Boog every 5 days. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
COMath versus CSO de Boog: the parameters behind the verdict, then further details
ParameterCOMathCSO de Boog
PriceFreeFree
Rating4.8 (45 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings45 — better—
Update frequencyMonthlyEvery 5 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size89 MB11 MB
Age rating9+4+
DeveloperJianfeng WuStichting christelijk speciaal onderwijs Apeldoorn

In-app purchases

None

COMath

No in-app purchases

None

CSO de Boog

No in-app purchases

Questions

Is COMath free?
COMath is free to download, with no in-app purchases.
Is CSO de Boog free?
CSO de Boog is free to download, with no in-app purchases.
Do COMath or CSO de Boog have ads?
COMath shows ads; CSO de Boog does not.
Which is updated more often, COMath or CSO de Boog?
COMath ships an update monthly, and CSO de Boog every 5 days. Most recently, COMath was updated on October 7, 2026 and CSO de Boog on September 30, 2026.

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