Math Ninjas vs Sentopoly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Game-based learning
- Mathematics education
- Ninja theme
- Interactive gameplay
- iOS compatible
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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!
Sentopoly
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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
Verdict
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
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.
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.
| Parameter | Math Ninjas | Sentopoly |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (6 ratings) — better | — |
| Positive reviews | 63.6% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 7 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 198 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | HARASHOW Interactive | Ian Jukes |
In-app purchases
Math Ninjas
- Full Version$3.99
Sentopoly
- Sentopoly Pro, monthly7 Days trial$4.991 Month
- Sentopoly Pro, yearly7 Days trial$29.991 Year









