Comparison

MathSling vs Kaira

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

Head to head
About

MathSling

This interactive game makes practicing arithmetic enjoyable. Solve various math problems through dynamic levels, track your progress, and aim for high scores. It offers an ad-free experience with an optional in-app purchase to enhance your learning.

Highlights
  • Arithmetic practice
  • Addition, subtraction, multiplication, division
  • Dynamic levels
  • Progress tracking
  • High score challenges
  • Ad-free experience
Features
Read full description

MathSling is a fun and interactive game that helps you improve your math skills while having a blast! Solve addition, subtraction, multiplication, and division problems across dynamic levels. Track your progress, challenge yourself to beat your high scores, and enjoy an ad-free experience with an optional in-app purchase. Perfect for all ages—download MathSling and make math fun!

About

Kaira

Features
Read full description

Kaira: Math — gentle math practice for ages 7–9 Meet Kaira, a friendly Samoyed who keeps your child company during math practice. Kaira: Math is a calm, ad-free arithmetic app built on what cognitive science actually says about how kids learn math — not on points, streaks, or pressure. A DIFFERENT KIND OF MATH APP Most kids' math apps use coins, scores, and leaderboards to keep children engaged. Research on child motivation shows these rewards can actually reduce a child's interest in learning over time. Kaira: Math takes a different path. Children progress by building real skill, one step at a time, with Kaira by their side. HOW IT WORKS Your child chooses a skill to practice and how many problems to solve: 5, 10, or 15. Each skill has two phases: - Learning mode — calm, untimed, with gentle hints when something feels hard. Mistakes are treated as information, not failures. - Fluency mode — unlocks only after your child is consistently accurate. A playful way to build speed once the foundation is solid. New skills unlock automatically as earlier ones are mastered. No skill is ever forced, no skill is ever skipped. WHAT YOUR CHILD PRACTICES 25 carefully sequenced addition and subtraction skills, from single-digit facts through three-digit problems with carrying and borrowing. The progression is built on evidence-based strategies like "making tens" and decomposition — the same techniques great teachers use. THE PARENT DASHBOARD Behind a PIN, parents get a dashboard that shows what really matters: which skills your child is working on, where they are stuck, and what kind of mistakes they are making. Not just "73% correct" but "most errors are forgotten carries" — with specific suggestions for how to help at home. PRIVATE BY DESIGN - All data stays on your device. No accounts, no cloud, no sign-up. - No ads. Ever. - No analytics or tracking of your child. - No network connection required to use the app. FOR AGES 7–9 Designed for children in roughly 2nd through 4th grade who are working on double-digit addition, subtraction, carrying, and borrowing. Kaira: Math is not a replacement for school math — it is a calm, private place to build fluency and confidence between lessons. SUBSCRIPTION Kaira: Math Premium unlocks full access to all skills and the parent dashboard. Try it free for 7 days, then $4.99/month or $29.99/year. Cancel anytime in your Apple ID settings. Payment is charged to your Apple ID at confirmation of purchase. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Practice math with Kaira. One skill at a time. Terms of Use: https://spartak.io/kaira_math/terms.html

Screenshots

MathSling4 screens
Kaira4 screens

Verdict

The call

The clearest difference is iOS requirement: MathSling at 15.0 against Kaira's 17.0. On price, ads, 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. MathSling sells 1 one-off in-app purchase and Kaira sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 8 level
MathSling versus Kaira: the parameters behind the verdict, then further details
ParameterMathSlingKaira
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Every 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size5 MB3 MB
Age rating4+4+
DeveloperBrian Patrick BakkumSpartak Kagramanyan

In-app purchases

1 purchases

MathSling

One-time1
  • Remove Ads$2.99
2 purchases

Kaira

Subscriptions2
  • Kaira: Math Premium7 Days trial$4.991 Month
  • Kaira: Math Premium7 Days trial$29.991 Year

Questions

Is MathSling free?
MathSling is free to download, with in-app purchases available.
Is Kaira free?
Kaira is free to download, with in-app purchases available.
Do MathSling or Kaira have ads?
Neither MathSling nor Kaira shows ads.

Other comparisons