Comparison

Math Ninjas vs Sentopoly

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

Head to head
About

Math Ninjas

This educational game uses a ninja theme to make learning mathematics fun for children on iPhone and iPad. Kids can engage with math concepts through interactive gameplay.

Highlights
  • Game-based learning
  • Mathematics education
  • Ninja theme
  • Interactive gameplay
  • iOS compatible
Features
Read full description

This is a fully game that allows your child to learn the math by iPhone and iPad. Learn the math by playing and having fun with ninjas! Please support "Math Ninjas", the best app to learn and play with math for your child!

About

Sentopoly

Features
Read full description

Sentopoly: learn a language from the sentences you actually need. SEVENTEEN LANGUAGES Learn Arabic, Chinese (Simplified), Chinese (Traditional, Taiwan), Dutch, English, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Spanish, Turkish or Vietnamese, starting from any of the others. Choose the language you speak and the one you want, and change pairs whenever you like. TYPE OR SAY A SENTENCE In your language or the one you are learning. Sentopoly translates it the way a native speaker would say it and breaks it into words: meaning, part of speech, pronunciation and a note on usage. Chinese comes with Zhuyin or pinyin, Japanese with furigana and romaji, Korean, Russian, Arabic and Hindi with romanisation, and the European languages with IPA. HEAR IT PROPERLY Every sentence and every word is read in a natural native voice, in all 17 languages. Listen mode plays your sentences one after another, with the screen off if you like, with shuffle and a pause after each one so you can repeat it. SAY IT, GET SCORED Shadow mode plays the sentence, records you repeating it, and scores your pronunciation word by word. Words you got wrong turn red; tap one to hear it again. Scoring covers 15 of the 17 languages; for Indonesian and Turkish you can still record yourself and compare. REMEMBER IT Sentences and words go into a five-stage spaced-repetition schedule. A few minutes a day keeps everything you have learned alive. A daily goal and a streak keep you honest, a day with nothing due never breaks your streak, and Hard ones drills the cards you keep missing. START WITH A TOOLKIT Learning Taiwan Mandarin? A built-in starter pack gives you 250 everyday sentences in ten units: asking questions, people and things, numbers and money, time, dates, measurements, directions, past and future, can / want / need, feelings. Starter packs for the other languages, each adapted to the country where the language is spoken, arrive in the next update. YOUR LIBRARY Tag sentences, search them, filter yours from the course. The app's own interface is in English or Traditional Chinese. PRIVATE BY DESIGN No account. Your sentences live on your phone and in your own iCloud backup. No ads, no tracking. SENTOPOLY PRO Try everything free for 7 days. Pro unlocks unlimited new sentences, voices and pronunciation scoring: US$4.99 a month or US$29.99 a year. Cancel any time; everything you saved stays yours. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sentopoly-proxy.khazaril-1df.workers.dev/privacy

Screenshots

Math Ninjas4 screens
Sentopoly4 screens

Verdict

The call

The clearest difference is update cadence: Sentopoly at every 3 days against Math Ninjas's every 7 months. Math Ninjas's advantage is iOS requirement (13.0 vs 16.4). 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. Math Ninjas sells 1 one-off in-app purchase and Sentopoly sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Math Ninjas ships an update every 7 months, Sentopoly every 3 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Math Ninjas versus Sentopoly: the parameters behind the verdict, then further details
ParameterMath NinjasSentopoly
PriceFreeFree
Rating3.5 (6 ratings) — better—
Positive reviews63.6% of reviews—
Number of ratings6 — better—
Update frequencyEvery 7 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size198 MB104 MB
Age rating4+4+
DeveloperHARASHOW InteractiveIan Jukes

In-app purchases

1 purchases

Math Ninjas

One-time1
  • Full Version$3.99
2 purchases

Sentopoly

Subscriptions2
  • Sentopoly Pro, monthly7 Days trial$4.991 Month
  • Sentopoly Pro, yearly7 Days trial$29.991 Year

Questions

Is Math Ninjas free?
Math Ninjas is free to download, with in-app purchases available.
Is Sentopoly free?
Sentopoly is free to download, with in-app purchases available.
Do Math Ninjas or Sentopoly have ads?
Neither Math Ninjas nor Sentopoly shows ads.
Which is updated more often, Math Ninjas or Sentopoly?
Math Ninjas ships an update every 7 months, and Sentopoly every 3 days. Most recently, Math Ninjas was updated on November 8, 2026 and Sentopoly on November 6, 2026.

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